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Citation: Lv Chun-Hua, Zhang Tong-Lai, Qiao Xiao-Jing, Cai Rui-Jiao, Yu Kai-Bei. Structure and Thermal Decomposition Mecharism of [Pb₂(TNR)₂(CHZ)₂(H₂O)₂]₄H₂O[J]. Acta Physico-Chimica Sinica, ;2000, 16(05): 441-446. doi: 10.3866/PKU.WHXB20000513 shu

Structure and Thermal Decomposition Mecharism of [Pb₂(TNR)₂(CHZ)₂(H₂O)₂]₄H₂O

1.
The Department of Mechano-electric Engineering,Beijing Institute of Technology,Beijing 100081

Received Date: 24 September 1999
Available Online: 15 May 2000

The coordination compound of [Pb 2(TNR) 2(CHZ) 2(H 2O) 2]•4H 2O was prepared by using the aqueous solution of carbohydrazide, lead nitrate and sodium styphnate. The molecular structure of [Pb 2(TNR) 2(CHZ) 2(H 2O) 2]•4H 2O(C 7H 13 N 7O 12 Pb, Mr=594.43) was determined by using a single crystal diffraction analysis .The thermal decomposition mechanism of the title compound was studied by TGDTG, DSC and IR techniques. The crystal belongs to monoclinic with space group P2 1/n.The unit cell parameters are as follows: a=0.64700(10)nm, b=1.6074(3)nm, c=1.4883(3)nm,β=97.42(2)°,V=1.5349(5)nm3, Z=2, DC=2.572g•cm -3 ,μ(Mo, Kα)=11.080cm -1 , F(000)=1128. R=0.0422, Rw=0.0735. The binuclear lead coordination compound is bridged by two carbohydrazide molecules. The molecule has a symmetrical center. TNR 2- ,CHZ and H 2O coordinate with the central ions simultaneously.
- Carbohydrazide,
- Led coordination compound,
- Molecular structure,
- Thermal decomposition Mechanism
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Structure and Thermal Decomposition Mecharism of [Pb2(TNR)2(CHZ)2(H2O)2]4H2O

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Structure and Thermal Decomposition Mecharism of [Pb₂(TNR)₂(CHZ)₂(H₂O)₂]₄H₂O