Citation: SHEN Jun-Ju, SONG Jiao, YU Tan-Lai, FU Yun-Long. Structure and Photoluminescence of a New 3D Cu₄I₄ Hybrid Constructed by a Flexible Acyclic Aliphatic Diamine with Steric Effect[J]. Chinese Journal of Structural Chemistry, ;2014, 33(7): 1025-1030. shu

Structure and Photoluminescence of a New 3D Cu₄I₄ Hybrid Constructed by a Flexible Acyclic Aliphatic Diamine with Steric Effect

1.
School of Chemistry & Material Science, Shanxi Normal University, Linfen 041004, China

Received Date: 13 December 2013
Available Online: 23 January 2014
Fund Project: This work was financially supported by the Natural Scientific Foundation Committee of China (No. 21171110) (No. 21171110)

A new 3D copper(I) iodide hybrid, [Cu₄I₄(TMEDA)₂]_n (1, TMEDA=N,N,N',N'-tetramethylethylenediamine), has been solvothermally synthesized and characterized by singlecrystal X-ray diffraction, IR spectroscopy, elemental analysis, powder X-ray diffractions and thermogravimetric analysis. Compound 1 crystallizes in tetragonal space group P4₂/n with a=b=11.5663(7) Å, c=9.2456(11) Å, V=1236.87(18) Å³, Z=8, C₃H₈CuIN, M_r=248.54, D_c=3.507 g/cm³, F(000)=920, μ(MoKα)=8.388 mm^-1, the final R=0.0244 and wR=0.0573 for 1118 observed reflections (I>2σ(I)). The hybrid framework is built up from cubane-like Cu₄I₄ cluster and flexible acyclic aliphatic diamine TMEDA, which can be simplified into a twofold interpenetrating dia network. The solid state luminescence spectrum displays a strong yellow emission band at room temperature (λ_ex=340 nm, λ_em=530 nm). Results reveal that steric effect of N-substituted methyl groups in TMEDA have obvious influence on the structure and photoluminescent property of compound 1.
- organic-inorganic hybrid,
- Cu₄I₄ cluster,
- twofold interpenetrating,
- photoluminescence
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