有机锡配合物{[~nBu_2Sn(OOCC_5H_3(NO_2)_2)]_2O}_2的合成、谱学表征和晶体结构

以3,5-二硝基苯甲酸和二丁基氧化锡为原料,合成了一种新的有机锡配合物{[~nBu_2Sn(OOCC_5H_3(NO_2)_2)]_2O}_2,并对其进行了元素分析、红外光谱表征和X射线单晶衍射.结果表明:该配合物属三斜晶系,P_ī空间群,a=1.0705(2) nm,b=1.3333(3) nm,c=1.4360(3) nm,α=68.892(3) °,β=78.297(3) °,γ=80.285(3) °, V=1.8620(7) nm~3 , Z=1, dc=1.613 g/cm~3 , μ=1.406 mm~(-1), F(000) =908, R_1=0.0408, wR_2=0.0948.该化合物分子是以Sn_2O_2四元环为中心,对称的二聚体结构,内外环锡原子均为五配位的畸变三角双锥构型.

Synthesis, Spectral Characterization and Crystal Structure of the Organo-tin Compounds {[nBu2Sn(OOCC5H3(NO2)2)]2O}2

A novel organo-tin compounds {[~nBu_2Sn(OOCC_5H_3(NO_2)_2)]_2O}_2 was synthesized by the reaction of 3, 5-dinitrobenzoic acid with (n-Bu)_2SnO. The structure was characterized by elemental analysis, IR spectroscopy as well as X-ray single crystal diffractometer. The crystal belongs to triclinic with space group Pī. Crystallographic date: a=1.0705(2) nm, b=1.3333(3) nm,c=1.4360(3) nm,α=68.892(3) °,β=78.297(3) °, γ=80.285(3) °,V=1.8620(7) nm~3 ,Z=1,dc=1.613g/cm~3 ,μ=1.406 mm~(-1),F(000)=908, R_1=0.0408, wR_2=0.0948. The complex is a centrosymmetric dimer structure mode with a four-membered central endo-cyclic Sn_2O_2 unit in which two bridged oxygen atoms both connect with an exo-cyclic tin atom.