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2002 Volume 13 Issue 6
2002, 13(6): 487-488
Abstract:
Esterification of carboxylic acid with equimolar amounts alcohol can be efficiently catalyzed by biphasic 4-(benzylamino)formoyldiphenylammonium triflate (BDPAT, 3) in good yield. The catalyst can be easily recovered without loss of activity.
Esterification of carboxylic acid with equimolar amounts alcohol can be efficiently catalyzed by biphasic 4-(benzylamino)formoyldiphenylammonium triflate (BDPAT, 3) in good yield. The catalyst can be easily recovered without loss of activity.
2002, 13(6): 489-490
Abstract:
The promoter effects of rare earth ions on the electrocatalytic oxidation of methanol at the Pt electrode were studied using the cyclic voltammetry and stable polarization techniques. It was found for the first time that Eu Ho Dy ions could accelerate the electrocatalytic oxidation of methanol at the Pt electrode, while Lu Pr Yb Sm ions showed inhibitor effects.
The promoter effects of rare earth ions on the electrocatalytic oxidation of methanol at the Pt electrode were studied using the cyclic voltammetry and stable polarization techniques. It was found for the first time that Eu Ho Dy ions could accelerate the electrocatalytic oxidation of methanol at the Pt electrode, while Lu Pr Yb Sm ions showed inhibitor effects.
2002, 13(6): 491-494
Abstract:
Oxidation of cyclohexene under 1 atmospheric pressure of molecular oxygen at 70℃ in the absence of solvent catalyzed by PAMAM-SA-M (Where PAMAM=polyamidoamine; SA=salicyaldehyde; M=metal ions Fe3+, Co2+, Ni2+, Mn2+, Cu2+, Zn2+, respectively) dendrimers,afforded 2-cyclohexen-1-ol 1, 2-cyclohexen-1-one 2, 7-oxabicyclo [4,1,0] heptane 3 and 7-oxabicyl [4,1,0] heptan-2-one 4 as the major products. The factors that affect this reaction are also discussed.
Oxidation of cyclohexene under 1 atmospheric pressure of molecular oxygen at 70℃ in the absence of solvent catalyzed by PAMAM-SA-M (Where PAMAM=polyamidoamine; SA=salicyaldehyde; M=metal ions Fe3+, Co2+, Ni2+, Mn2+, Cu2+, Zn2+, respectively) dendrimers,afforded 2-cyclohexen-1-ol 1, 2-cyclohexen-1-one 2, 7-oxabicyclo [4,1,0] heptane 3 and 7-oxabicyl [4,1,0] heptan-2-one 4 as the major products. The factors that affect this reaction are also discussed.
2002, 13(6): 495-496
Abstract:
Ferric chloride catalyzes the isomerization and cyclization of geraniol, linalool and nerol in acetonitrile giving α-terpineol in good to high yields.
Ferric chloride catalyzes the isomerization and cyclization of geraniol, linalool and nerol in acetonitrile giving α-terpineol in good to high yields.
2002, 13(6): 497-498
Abstract:
Polyether-tailored phosphite modified rhodium complex formed in situ was highly active in the hydroformylation of oleyl alcohol in nonaqueous phosphite/heptane system where the phosphite acted both as the ligand and the second phase. This catalyst was easily separated by simple decantation and can be used for five times with only a slight decrease in activity.
Polyether-tailored phosphite modified rhodium complex formed in situ was highly active in the hydroformylation of oleyl alcohol in nonaqueous phosphite/heptane system where the phosphite acted both as the ligand and the second phase. This catalyst was easily separated by simple decantation and can be used for five times with only a slight decrease in activity.
2002, 13(6): 499-500
Abstract:
The , vicinal dibromo carboxylic acid and its derivatives were debrominated with Sm/HOAc system to afford the corresponding cinnamic acid and its derivatives in good yields under mild conditions.
The , vicinal dibromo carboxylic acid and its derivatives were debrominated with Sm/HOAc system to afford the corresponding cinnamic acid and its derivatives in good yields under mild conditions.
2002, 13(6): 501-504
Abstract:
A highly regioselective O-deacetylation of taxanes at C-5 position was accomplished by treatment with t-BuOK and a possible mechanism was proposed.
A highly regioselective O-deacetylation of taxanes at C-5 position was accomplished by treatment with t-BuOK and a possible mechanism was proposed.
2002, 13(6): 505-508
Abstract:
A simplified procedure for enantioselective synthesis of (S)-(+)-2-(6'-methoxyl-2-naphthyl) propionic acid ((S)-(+)-naproxen), starting from (6-methoxy-α-naphthyl)-1-propanone,with D-mannitol as auxiliary catalyzed by SmCl3 in one-pot is described. The yield is 87.5%(ee value 99%).
A simplified procedure for enantioselective synthesis of (S)-(+)-2-(6'-methoxyl-2-naphthyl) propionic acid ((S)-(+)-naproxen), starting from (6-methoxy-α-naphthyl)-1-propanone,with D-mannitol as auxiliary catalyzed by SmCl3 in one-pot is described. The yield is 87.5%(ee value 99%).
2002, 13(6): 509-512
Abstract:
To search for more better sensitizer of organic solar cell, a series of multidentate squaraines (Sq1~6) were synthesized, the structures were determined by elemental analysis, IR,UV-vis, 1H NMR and MS spectroscopies. The squaraines have good solubility in polar solvents such as EtOH, CH3COCH3, CHCl3,etc. as well as strong absorption band over 600~700 nm spectral range.
To search for more better sensitizer of organic solar cell, a series of multidentate squaraines (Sq1~6) were synthesized, the structures were determined by elemental analysis, IR,UV-vis, 1H NMR and MS spectroscopies. The squaraines have good solubility in polar solvents such as EtOH, CH3COCH3, CHCl3,etc. as well as strong absorption band over 600~700 nm spectral range.
2002, 13(6): 513-514
Abstract:
Tetra-Schiff base macrocyclic compound containing benzo-12-crown-4 was synthesized via condensation of 2, 6-diformyl-4-methyl-phenol with 4', 5'-diaminobenzo-12-C-4 promoted by proton. The compound was characterized by MS, IR 1HNMR spectroscopy and elemental analysis.
Tetra-Schiff base macrocyclic compound containing benzo-12-crown-4 was synthesized via condensation of 2, 6-diformyl-4-methyl-phenol with 4', 5'-diaminobenzo-12-C-4 promoted by proton. The compound was characterized by MS, IR 1HNMR spectroscopy and elemental analysis.
2002, 13(6): 515-518
Abstract:
The new synthetic route of (±)shikalkin 1 was developed. 3-(1-Hydroxy-4-methyl-3-pentenyl)-5, 8-dimethoxy-1-naphthol 8 was obtained from compound 3 in 10 steps. Then (±)shikalkin 1 was synthesized from 8 in one step with reagents AgO/HNO3 in 1, 4-dioxane.
The new synthetic route of (±)shikalkin 1 was developed. 3-(1-Hydroxy-4-methyl-3-pentenyl)-5, 8-dimethoxy-1-naphthol 8 was obtained from compound 3 in 10 steps. Then (±)shikalkin 1 was synthesized from 8 in one step with reagents AgO/HNO3 in 1, 4-dioxane.
2002, 13(6): 519-520
Abstract:
The first enantioselective total synthesis of 5-acetoxygoniothalamin 1 and 5-acetoxyisogoniothalamin oxide 2 was achieved through the Sharpless kinetic resolution of racemic secondary 2-furylmethanol 5 and the Mitsunobu reaction. At the same time we developed a short synthetic route for 6R-(+)-goniothalamin 3 and (6R, 7R, 8R)-(+)-goniothalamin oxide 4. And according to this route the configuration of 5-acetoxygoniothalamin 1 was confirmed as (5S, 6S).
The first enantioselective total synthesis of 5-acetoxygoniothalamin 1 and 5-acetoxyisogoniothalamin oxide 2 was achieved through the Sharpless kinetic resolution of racemic secondary 2-furylmethanol 5 and the Mitsunobu reaction. At the same time we developed a short synthetic route for 6R-(+)-goniothalamin 3 and (6R, 7R, 8R)-(+)-goniothalamin oxide 4. And according to this route the configuration of 5-acetoxygoniothalamin 1 was confirmed as (5S, 6S).
2002, 13(6): 521-524
Abstract:
Piceatannol, (E)-3, 3', 4, 5'-tetrahydroxy stilbene, a natural polyhydroxy stilbene,possesses many biological activities, its synthesis has been reported. We designed another route of its synthesis, which can be controlled more easily. The synthetic product was characterized by elemental analysis, IR, MS and 1H-NMR. Its analogs were synthesized by the similar method.
Piceatannol, (E)-3, 3', 4, 5'-tetrahydroxy stilbene, a natural polyhydroxy stilbene,possesses many biological activities, its synthesis has been reported. We designed another route of its synthesis, which can be controlled more easily. The synthetic product was characterized by elemental analysis, IR, MS and 1H-NMR. Its analogs were synthesized by the similar method.
2002, 13(6): 525-527
Abstract:
The bis(calix[4]arene) 3 was synthesized in moderate yield by the reaction of p-tert-butylcalix[4]arene (1) with 1,4-bis(chloromethyl)benzene (2). The conformation of all alkylated product 4 was investigated by the variable-temperature 1H-NMR.
The bis(calix[4]arene) 3 was synthesized in moderate yield by the reaction of p-tert-butylcalix[4]arene (1) with 1,4-bis(chloromethyl)benzene (2). The conformation of all alkylated product 4 was investigated by the variable-temperature 1H-NMR.
2002, 13(6): 528-530
Abstract:
(+)CM1, (-)CM1 as well as (±)CM1-the metabolites of clausenamide were synthesized from β-phenyl-(N-p-methoxylbenzyl)-ethanol amine through 8 and 6 steps respectively.
(+)CM1, (-)CM1 as well as (±)CM1-the metabolites of clausenamide were synthesized from β-phenyl-(N-p-methoxylbenzyl)-ethanol amine through 8 and 6 steps respectively.
2002, 13(6): 531-534
Abstract:
Through B3LYP/6-31G** calculations, the 1, 4-pyrone effects on O-H bond dissociation energies (BDEs) of catechols in rings A or B of flavonoids were investigated. For the catechol in ring A, although 1, 4-pyrone enlarged the conjugation system, its electron-withdrawing property increased the O-H BDE~3×4.184 kJ/mol compared with that of catechol. However, for the catechol in ring B, 1, 4-pyrone was poorly conjugated with the moiety,and therefore, had little effect on the O-H BDE.
Through B3LYP/6-31G** calculations, the 1, 4-pyrone effects on O-H bond dissociation energies (BDEs) of catechols in rings A or B of flavonoids were investigated. For the catechol in ring A, although 1, 4-pyrone enlarged the conjugation system, its electron-withdrawing property increased the O-H BDE~3×4.184 kJ/mol compared with that of catechol. However, for the catechol in ring B, 1, 4-pyrone was poorly conjugated with the moiety,and therefore, had little effect on the O-H BDE.
2002, 13(6): 535-536
Abstract:
A new bibenzyl derivative, 3,4-dihydroxy-4',5-dimethoxy bibenzyl, was isolated from a orchid Dendrobium moniliforme. The structure elucidation and 1H,13C NMR assignments were achieved by spectroscopic method.
A new bibenzyl derivative, 3,4-dihydroxy-4',5-dimethoxy bibenzyl, was isolated from a orchid Dendrobium moniliforme. The structure elucidation and 1H,13C NMR assignments were achieved by spectroscopic method.
2002, 13(6): 537-538
Abstract:
A new flavonol glycoside, named neosmitilbin was isolated form the rhizome of Smilax glabra. Its structure and absolute configuration were elucidated on the basis of spectroscopic studies.
A new flavonol glycoside, named neosmitilbin was isolated form the rhizome of Smilax glabra. Its structure and absolute configuration were elucidated on the basis of spectroscopic studies.
2002, 13(6): 539-542
Abstract:
Two new xanthone glycosides, securixanside B and C, were isolated from the stems of Securidaca inappendiculata. Their structures were determined as 3-O-β-D-glucopyranosyl-1,7-dihydroxy-2-methoxyxanthone and 6-O-β-D-glucopyranosyl-1-hydroxy-4,7-dimethoxyxanthone by spectroscopic methods.
Two new xanthone glycosides, securixanside B and C, were isolated from the stems of Securidaca inappendiculata. Their structures were determined as 3-O-β-D-glucopyranosyl-1,7-dihydroxy-2-methoxyxanthone and 6-O-β-D-glucopyranosyl-1-hydroxy-4,7-dimethoxyxanthone by spectroscopic methods.
2002, 13(6): 543-546
Abstract:
Two new C-21 steroidal glycosides, cynanauriculoside I and cynanauriculoside Ⅱ, were isolated from the roots of Cynanchum aurichulatum. Their structures were established using spectroscopic methods including one and two-dimensional NMR.
Two new C-21 steroidal glycosides, cynanauriculoside I and cynanauriculoside Ⅱ, were isolated from the roots of Cynanchum aurichulatum. Their structures were established using spectroscopic methods including one and two-dimensional NMR.
2002, 13(6): 547-548
Abstract:
Two new cardenolide glycosides, biondianosides A and B, were isolated from the roots of endemic plant of Biondia hemsleyana (Warb.) Tsiang. Their structures were elucidated as periplogenin-3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-(1→4)-β-D-cymaropyranosid e (1) and 17 H-periplogenin-3-O-β-D-cymaropyranoside (2) by the spectroscopic and chemical methods.
Two new cardenolide glycosides, biondianosides A and B, were isolated from the roots of endemic plant of Biondia hemsleyana (Warb.) Tsiang. Their structures were elucidated as periplogenin-3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-(1→4)-β-D-cymaropyranosid e (1) and 17 H-periplogenin-3-O-β-D-cymaropyranoside (2) by the spectroscopic and chemical methods.
2002, 13(6): 549-550
Abstract:
Gnetuhainin S, a new resveratrol dimer, was isolated from the lianas of Gnetum hainanense C. Y. Cheng. Its structure and relative configuration were established on the basis of spectroscopic evidence.
Gnetuhainin S, a new resveratrol dimer, was isolated from the lianas of Gnetum hainanense C. Y. Cheng. Its structure and relative configuration were established on the basis of spectroscopic evidence.
2002, 13(6): 551-554
Abstract:
Two new isobutyltartrate monoesters, coelovirin A (1) and B (2), were isolated from the rhizomes of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter (Orchidaceae).Their structures were elucidated as (2R, 3S)-2-isobutyltartrate-1-(4-β-D-glucopyranosyloxybenzyl)ester 1 and (2R, 3S)-2-isobutyltartrate-4-(4-β-D-glucopyranosyloxybenzyl) ester 2 on the basis ofphysical constants and spectroscopic methods including 2D NMR techniques.
Two new isobutyltartrate monoesters, coelovirin A (1) and B (2), were isolated from the rhizomes of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter (Orchidaceae).Their structures were elucidated as (2R, 3S)-2-isobutyltartrate-1-(4-β-D-glucopyranosyloxybenzyl)ester 1 and (2R, 3S)-2-isobutyltartrate-4-(4-β-D-glucopyranosyloxybenzyl) ester 2 on the basis ofphysical constants and spectroscopic methods including 2D NMR techniques.
2002, 13(6): 555-556
Abstract:
A new acyclic sesquiterpene oligoglycoside, named mukurozioside A, was isolated from pericarps of Sapindus mukurossi. On the basis of chemical and spectral evidence, the structure of mukurozioside A has been established as: 11(S)-2, 6(E, E)-dodecadiene-3, 7, 11-trimethyl-1,12-diol-1,12-bis-O--L-rhamnopyranosyl-(1→2)-[-L-rhamnopyranosyl-(1→3)]-6-O-acetyl--DGlucopyranoside (1).
A new acyclic sesquiterpene oligoglycoside, named mukurozioside A, was isolated from pericarps of Sapindus mukurossi. On the basis of chemical and spectral evidence, the structure of mukurozioside A has been established as: 11(S)-2, 6(E, E)-dodecadiene-3, 7, 11-trimethyl-1,12-diol-1,12-bis-O--L-rhamnopyranosyl-(1→2)-[-L-rhamnopyranosyl-(1→3)]-6-O-acetyl--DGlucopyranoside (1).
2002, 13(6): 557-560
Abstract:
The phthalate esters such as DMP, DEP, DBP and DEHP in air, soil and plant samples in plastic film greenhouse were clean up with fine silica gel column and determined with HPLC. It was found that the concentrations of PEs in air and soil samples in plastic film greenhouse are much higher than those of contrast samples. But concentrations of PEs in plants in plastic film greenhouse are not remarkably affected by the pollution of air and soil.
The phthalate esters such as DMP, DEP, DBP and DEHP in air, soil and plant samples in plastic film greenhouse were clean up with fine silica gel column and determined with HPLC. It was found that the concentrations of PEs in air and soil samples in plastic film greenhouse are much higher than those of contrast samples. But concentrations of PEs in plants in plastic film greenhouse are not remarkably affected by the pollution of air and soil.
2002, 13(6): 561-562
Abstract:
A novel substrate, whose silver particles were deposited on both sides of a slide, was made by silver mirror reaction. Its two sides had different thinness and reflectivity and they were suited for the test of surface enhanced Raman spectroscopy (SERS) and reflection absorption infrared spectroscopy (RAIR) technique respectively.
A novel substrate, whose silver particles were deposited on both sides of a slide, was made by silver mirror reaction. Its two sides had different thinness and reflectivity and they were suited for the test of surface enhanced Raman spectroscopy (SERS) and reflection absorption infrared spectroscopy (RAIR) technique respectively.
2002, 13(6): 563-566
Abstract:
The interface between a-PMMA thin film and silver mirror substrate was investigated using surface-enhanced Raman scattering (SERS). It is found that the molecular chain axis of a-PMMA tends to parallel the substrate in the interface. When the sample is annealed at different temperatures, some interesting changes appear in the SERS spectra. The spectra differences and their transition are due to the surface geometry change of the ester group.
The interface between a-PMMA thin film and silver mirror substrate was investigated using surface-enhanced Raman scattering (SERS). It is found that the molecular chain axis of a-PMMA tends to parallel the substrate in the interface. When the sample is annealed at different temperatures, some interesting changes appear in the SERS spectra. The spectra differences and their transition are due to the surface geometry change of the ester group.
2002, 13(6): 567-570
Abstract:
The properties of the triplet excited state of [60]fullerene-containing cyclic sulphoxide have been investigated by time-resolved absorption spectroscopy. Transient absorption bands of [60]fullerene-containing cyclic sulphoxide showed two decay-components, which were attributed to triplet excited states of different spin multiplicity. The properties of photoexcited states of [60]fullerene-containing cyclic sulphoxide are also reported.
The properties of the triplet excited state of [60]fullerene-containing cyclic sulphoxide have been investigated by time-resolved absorption spectroscopy. Transient absorption bands of [60]fullerene-containing cyclic sulphoxide showed two decay-components, which were attributed to triplet excited states of different spin multiplicity. The properties of photoexcited states of [60]fullerene-containing cyclic sulphoxide are also reported.
2002, 13(6): 571-572
Abstract:
A spectrometric setup to perform total internal reflection fluorescence (TIRF) and synchronous TIRF measurements at solid/liquid interfaces is presented. The combination of TIRF and synchronous fluorescence was proposed to analyze simultaneously different components at interfaces. The TIRF excitation, emission and synchronous spectra of a water-soluble porphyrin were obtained from water/glass interface using this setup without the existence of a surfactant.
A spectrometric setup to perform total internal reflection fluorescence (TIRF) and synchronous TIRF measurements at solid/liquid interfaces is presented. The combination of TIRF and synchronous fluorescence was proposed to analyze simultaneously different components at interfaces. The TIRF excitation, emission and synchronous spectra of a water-soluble porphyrin were obtained from water/glass interface using this setup without the existence of a surfactant.
2002, 13(6): 573-574
Abstract:
The effect of cationic surfactant cetyltrimethylammonium bromide (CTAB) on the gelation of partially hydrolyzed polyacrylamide (HPAM) by Cr (Ⅲ) was investigated by using rheological measurements. The results indicated that the CTAB concentration has a pronounced effect on the viscoelastic properties of the gelling system.
The effect of cationic surfactant cetyltrimethylammonium bromide (CTAB) on the gelation of partially hydrolyzed polyacrylamide (HPAM) by Cr (Ⅲ) was investigated by using rheological measurements. The results indicated that the CTAB concentration has a pronounced effect on the viscoelastic properties of the gelling system.
2002, 13(6): 575-578
Abstract:
The composite films, XW11O39n-/SiO2, (X refers to Si, Ge or P, respectively) were prepared by tetraethoxysilane (TEOS) hydrolysis sol-gel method via spin-coating technique.Formation of the composite films is due to strong chemical reaction of organic silanol group with the surface oxygen atoms of XW11O39n-, resulted in the saturation of the surface of the lacunary polyoxometalates (POMs). Therefore, the coordination structural model of the films was proposed. As for the films, retention of the primary Keggin structure was confirmed by UV-vis,FT-IR spectra and MAS NMR. The surface morphology of the films was characterized by SEM,indicating that the film surface is relatively uniform, and the layer thickness is in the range of 250~350 nm. Aqueous formic acid (FA) (0-20 mmol/L) was degraded into CO2 and H2O byirradiating the films in the near-UV area. The results show that all the films have photocatalytic activities and the degradation reaction follows Langmuir-Hinshelwood first order kinetics.
The composite films, XW11O39n-/SiO2, (X refers to Si, Ge or P, respectively) were prepared by tetraethoxysilane (TEOS) hydrolysis sol-gel method via spin-coating technique.Formation of the composite films is due to strong chemical reaction of organic silanol group with the surface oxygen atoms of XW11O39n-, resulted in the saturation of the surface of the lacunary polyoxometalates (POMs). Therefore, the coordination structural model of the films was proposed. As for the films, retention of the primary Keggin structure was confirmed by UV-vis,FT-IR spectra and MAS NMR. The surface morphology of the films was characterized by SEM,indicating that the film surface is relatively uniform, and the layer thickness is in the range of 250~350 nm. Aqueous formic acid (FA) (0-20 mmol/L) was degraded into CO2 and H2O byirradiating the films in the near-UV area. The results show that all the films have photocatalytic activities and the degradation reaction follows Langmuir-Hinshelwood first order kinetics.
2002, 13(6): 579-582
Abstract:
This paper describes the potential of heterogeneous catalytic ozonization of sulfo-salicylic acid (SSal). It was found that catalytic ozonization in the presence of Mn-Zr-O (a modified manganese dioxide supported on silica gel) had significantly enhanced the removal rate (72%) of total organic carbon (TOC) compared with that of ozonization alone (19%). The efficient removal rate of TOC was probably due to increasing the adsorption ability of catalyst and accelerating decomposition of ozone to produce more powerful oxidants than ozone.
This paper describes the potential of heterogeneous catalytic ozonization of sulfo-salicylic acid (SSal). It was found that catalytic ozonization in the presence of Mn-Zr-O (a modified manganese dioxide supported on silica gel) had significantly enhanced the removal rate (72%) of total organic carbon (TOC) compared with that of ozonization alone (19%). The efficient removal rate of TOC was probably due to increasing the adsorption ability of catalyst and accelerating decomposition of ozone to produce more powerful oxidants than ozone.
2002, 13(6): 583-586
Abstract:
With a heptadentate compartmental Schiff-base ligand H3L (1, 3-di[o-(salicylimino) phenoxyl]-2-propanol), a new binuclear diuranyl complex [(UO2)2L(OH)]·；3DMF, C38H45N5O13U2,was synthesized and the crystal structure was determined by X-ray diffraction techniques. The coordination geometry are two pentagonal bipyramids. In each pentagon four kinds of U-O (phenoxido, hydroxo, alkoxo and ether oxo) bonds are discussed.
With a heptadentate compartmental Schiff-base ligand H3L (1, 3-di[o-(salicylimino) phenoxyl]-2-propanol), a new binuclear diuranyl complex [(UO2)2L(OH)]·；3DMF, C38H45N5O13U2,was synthesized and the crystal structure was determined by X-ray diffraction techniques. The coordination geometry are two pentagonal bipyramids. In each pentagon four kinds of U-O (phenoxido, hydroxo, alkoxo and ether oxo) bonds are discussed.
2002, 13(6): 587-589
Abstract:
A new phase, the rare earth complex oxide SnDy2O4 was synthesized by the thermal decomposition of its oxalate precursor that was prepared by rheological phase reaction method.TG, IR, XRD and EPS were used to prove the formation of the compound SnDy2O4. The structure of SnDy2O4 was refined by Rietveld analysis. SnDy2O4 is cubic, a=7.40366Å, V=405.82Å3, Z=4.
A new phase, the rare earth complex oxide SnDy2O4 was synthesized by the thermal decomposition of its oxalate precursor that was prepared by rheological phase reaction method.TG, IR, XRD and EPS were used to prove the formation of the compound SnDy2O4. The structure of SnDy2O4 was refined by Rietveld analysis. SnDy2O4 is cubic, a=7.40366Å, V=405.82Å3, Z=4.
