The monofunctionalized 1,4,7-triazacyclononane derivatives 1,4,7-triazacyclononane-N-acetate (L1) and N-(2-hydroxybenzyl-1,4,7-triazacyclononane (HL2) and their complexes with vanadium(IV)/(V). Localized and delocalized electronic structures in compounds containing the mixed valent [OVIVOVVO]3+ core
作者:Daniela Schulz、Thomas Weyhermüller、Karl Wieghardt、Bernhard Nuber
DOI:10.1016/0020-1693(95)04537-6
日期:1995.12
synthesized. Complexes 2, 3, 6 and 7 have been characterized by single crystal X-ray crystallography. Crystal data: 2, space group P21c,a=9.944(4),b=6.701(3),c=18.207(8)A, β=102.88(3)°, V=1182.7 A3, Z=4, Dcalc=1.51 g cm−3, R=0.049 based on 4760 reflections; 3, space group Pbca, a=11.003(6), b=14.295(7), c=20.21(1) A, V=3178.8 A3, Z=8, Dcalc=1,50 g cm−3, R=0.057 based on 1049 reflections; 6, space Pbcn, a=12
四齿侧链大环1,4,7-三氮杂环壬烷-N-乙酸酯(L1)和N-(2-羟基苄基)-1,4,7-三氮杂环壬烷(HL2)的合成及其与钒(IV)的配位化学和(V)被报告。下列单核物质已制备并通过紫外-可见光谱,红外光谱进行了表征:[L1VIVO(NCS)](1),[L1VO2]·H2O(2),[L2VO(NCS)](3),[L2VO(NCS) )] Cl(4)和[L2VO2](5)。另外,已经合成了双核混合价络合物[L21V2O3] Br(6),[L22V2O3](ClO4)·0.5丙酮(7)和均价络合物[L22V2O3](ClO4)2(8)。配合物2、3、6和7已经通过单晶X射线晶体学表征。晶体数据:2,空间群P21c,a = 9.944(4),b = 6.701(3),c = 18.207(8)A,β= 102.88(3)°,V = 1182.7 A3,Z = 4,Dcalc = 1.51 g