Skeletal rearrangements of arylborane complexes mediated by redox reactions: thermal and photochemical oxidation by metal ions
作者:John J. Eisch、Jamshed H. Shah、Marek P. Boleslawski
DOI:10.1016/0022-328x(94)87003-9
日期:1994.1
variety of metal salts have been found to undergo reduction by thermal and photochemical interaction with tetraarylborate salts and with neutral alkyl- and aryl-borane complexes. In the cases of Cu2+, Cu+, Ni2+, Co2+, Pd2+, Pt2+, Ag+, Zn2+, Hg2+, Sn2+, Pb2+ and Rh3+ salts, such photochemical reductions with NaBPh4 led to the deposition of the free metal, while a number of binary mixtures of metal salts
已经发现各种金属盐通过与四芳基硼酸盐以及中性烷基-和芳基-硼烷配合物的热和光化学相互作用而发生还原。在Cu 2 +,Cu +,Ni 2 +,Co 2 +,Pd 2 +,Pt 2 +,Ag +,Zn 2 +,Hg 2 +,Sn 2 +,Pb 2+和Rh 3+盐的情况下,例如用NaBPh 4进行光化学还原在这种光还原作用下,导致了游离金属的沉积,而许多金属盐的二元混合物导致了两种金属(有时是真正的合金)的沉积。在这些减少的过程中,芳基硼酸酯的还原剂后行氧化芳基的偶联以形成联芳基严格帧内离子的(BAR 4 - )或分子内(的Ar 3B)分别方式。对四芳基硼酸根阴离子本身,四苯基硼酸亚铜和三苯基硼烷-吡啶配合物的光化学的单独研究已提出了能够用作金属离子光还原剂的各种反应性中间体的证据,例如三芳基硼烷自由基阴离子,二芳基硼酸酯(I)阴离子或芳基硼烷,7-硼环环庚二烯阴离子或中性络合物,最后是芳基硼氢