Chemistry of <i>C</i>-Trimethylsilyl-Substituted Heterocarboranes. 31. New Insights into Reaction Pathways of Carborane Ligand Systems: Synthetic, Structural, Spectroscopic, and Electrochemical Studies on Sandwich and Half-Sandwich Metallacarboranes of Iron, Cobalt, and Nickel
作者:Susan Tomlinson、Chong Zheng、Narayan S. Hosmane、Jimin Yang、Ying Wang、Hongming Zhang、Thomas G. Gray、Temesgen Demissie、John A. Maguire、Frank Baumann、Axel Klein、Biprajit Sarkar、Wolfgang Kaim、William N. Lipscomb
DOI:10.1021/om048982u
日期:2005.4.1
MCl2 (M = Co, Fe) and closo-exo-y,x-Li(L)-1-Li(L)-2,n-(SiMe3)2-2,n-C2B4H4 (y = 4, x = 5, L = 2 THF, n = 3 (1); y = 4, x = 5, L = TMEDA, n = 3 (2); y = 5, x = 6, L = 2 THF, n = 4 (3); y = 5, x = 6, L = TMEDA, n = 4 (4)) in 1:1 molar ratios in benzene. The metallacarborane complexes exo-4,4‘,5,5‘-Fe(TMEDA)-commo-1,1‘-Fe[2,3-(SiMe3)2-2,3-C2B4H4]2 (5), M+[commo-1,1‘-Co2,3-(SiMe3)2-(2,3-C2B4H4)}2]- (M = CoCl
一系列全和半夹心metallacarboranes由来自的MC1的反应合成2(M = CO,Fe)和闭合型外-Y ,X -Li(L)-1-栗(L)-2,ñ - (SiMe 3)2 -2,n -C 2 B 4 H 4(y = 4,x = 5,L = 2 THF,n = 3(1); y = 4,x = 5,L = TME
DA,n= 3(2);y= 5,x= 6,L = 2THF,n= 4(3);n= 4(3)。y = 5,x = 6,L = TME
DA,n = 4(4))在苯中的摩尔比为1:1。
金属碳
硼烷络合物exo- 4,4',5,5'-Fe(TME
DA)-commo -1,1'-Fe [2,3-(SiMe 3)2 -2,3-C 2 B 4 H 4 ] 2(5),M + [ com -1,1'-Co 2,3-(SiMe 3)2-(2,3-C 2 B 4 H 4)} 2 ] -(M = CoCl(6a)