Dinuclear Cyano Complexes of Cobalt(III) and Iron(III) Containing Noninnocent 1,2,4,5-Tetrakis(2-pyridinecarboxamido)benzene Bridging Ligands
作者:Udo Beckmann、Eckhard Bill、Thomas Weyhermüller、Karl Wieghardt
DOI:10.1021/ic020518z
日期:2003.2.24
dinucleating ligands 1,2,4,5-tetrakis(2-pyridinecarboxamido)benzene, H(4)(tpb), and 1,2,4,5-tetrakis(4-tert-butyl-2-pyridinecarboxamido)benzene, H(4)(tbpb), have been synthesized, and the following dinuclear cyano complexes of cobalt(III) and iron(III) have been isolated: Na(2)[Co(III)(2)(tpb)(CN)(4)] (1); [N(n-Bu)(4)](2)[Co(III)(2)(tbpb)(CN)(4)] (2); [Co(III)(2)(tbpb(ox2))(CN)(4)] (3); [N(n-Bu)(4)](2)[Fe(
两个新的双核配体1,2,4,5-四(2-吡啶甲酰胺基)苯,H(4)(tpb)和1,2,4,5-四(4-叔丁基-2-吡啶甲酰胺基)苯,H(4)(tbpb)已合成,并分离出钴(III)和铁(III)的以下双核氰基配合物:Na(2)[Co(III)(2)(tpb)(CN )(4)](1);[N(n-Bu)(4)](2)[Co(III)(2)(tbpb)(CN)(4)](2);[Co(III)(2)(tbpb(ox2))(CN)(4)](3); [N(n-Bu)(4)](2)[Fe(III)(2)(tpb)(N(3))(4)](4);[N(n-Bu)(4)](2)[Fe(III)(2)(tpb)(CN)(4)](5); [N(n-Bu)(4)](2)[Fe(III)(2)(tbpb)(CN)(4)](6)。配合物2-4和6已在100 K下通过X射线晶体学进行了结构表征。从电化学和光谱学(紫外可见,