Hetero- and homo-nuclear bimetallic ruthenol complexes by dehydrogenative metallacyclization of Ru(CO)3(bi-1,7-cyclooctadienyl), preparation and x-ray structure of Fe(CO)3(C16H22), RuFe(CO)6(C16H22) and Ru2(CO)6(C16H20)
作者:Ippei Noda、Hajime Yasuda、Akira Nakamura
DOI:10.1016/0022-328x(83)85069-4
日期:1983.7
The reaction of M3(CO)12 (M = Ru, Fe) with excess bi-2,7-cyclooctadienyl (C16H22) 1 gave a mononuclear complex M(CO)3(1,2,1′-2′-η4-C16H22), 2a (M = Ru) or 3a (M = Fe), in good yield. Treatment of 2a with Fe3(CO)12 or reaction of 3a with Ru3(CO)12 gave the heterobimetallic complex RuFe(CO)6(C10H22) consisting of a ruthenacyclopentadiene unit coordinated to an Fe(CO)3 fragment, as confirmed by 1H NMR
M 3(CO)12(M = Ru,Fe)与过量的bi-2,7-环辛二烯基(C 16 H 22)1反应,得到单核络合物M(CO)3(1,2,1'-2 '-η 4 -C 16 ħ 22),2A(M = Ru)的或3a中(M = Fe)的,以良好的收率。用Fe 3(CO)12处理2a或3a与Ru 3(CO)12反应,得到异双金属络合物RuFe(CO)6(C 10 H 22由1 H NMR和X射线研究证实,该化合物由与Fe(CO)3片段配位的钌环戊二烯单元组成。由2a与Ru 3(CO)12的1:1反应获得相应的双金属络合物Ru 2(CO)6(C 16 H 22),而1与Ru 3(CO)12的直接反应得到Ru 2(CO)6(C 16 H 20)优先失去两个氢原子。这些双金属配合物的形成途径被解释为脱氢金属环化,然后进行氢转移。