Charge-Transfer Spectra of Structurally Characterized Mixed-Valence Thiolate-Bridged Cu(I)/Cu(II) Cluster Complexes
作者:Robert T. Stibrany、Ronald Fikar、Mark Brader、Marc N. Potenza、Joseph A. Potenza、Harvey J. Schugar
DOI:10.1021/ic020156v
日期:2002.10.1
mixed-valance pentanuclear complex rac-6. In the presence of Cu(II)(acac)(2), chiral R,R-1 reacts to form a mixed-valence pentanuclear cation R,R-7. rac-6 exhibits a relatively short Cu(I). Cu(II) contact [2.8231(9) A] and associated structural features that suggest the presence of a weak Cu(I).Cu(II) interaction in a valence-trapped system. Additional structural features in rac-6 and R,R-7 include singly
合成了一系列含有顺式-N(胺)(2)S(硫醇盐)(2)铜配合物rac-2的Cu(II)和Cu(I)/ Cu(II)配合物,为理解提供了基础价价硫醇盐桥联的Cu(I)/ Cu(II)配合物的电荷转移谱。与Cu(Me(2)-13-N(4)ane)组合使用,rac-2产生单桥双核均价加合物rac-5,而与CuCl反应则生成混合价五核复合物rac-6。在Cu(II)(acac)(2)的存在下,手性R,R-1反应形成混合价五核阳离子R,R-7。rac-6具有相对较短的Cu(I)。Cu(II)接触[2.8231(9)A]和相关的结构特征,表明在价陷阱系统中存在弱的Cu(I).Cu(II)相互作用。rac-6和R,R-7的其他结构特征包括单双桥联的硫醇盐,三配位和四配位的Cu(I)离子,以及变化的Cu(I)配体集。这些特征极大地扩展了电子吸收的类型和复杂性。rac-6和R,R-7的光谱在研究的整个可见光