From Sigma To Pi Coordination: Tetraisopropylcyclopentadienyl Dichlorides [(C(5)Hr(4))Ecl(2)] (R=Chme(2)) Of Phosphorus, Arsenic, Antimony, And Bismuth
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE(1996)
摘要
[(C(5)HR(4))PCl2] (1a), [(C(5)HR(4))PBr2] (1b), [(C(5)HR(4))AsCl2] (2), and [(C(5)HR(4))SbCl2] (3), have been obtained from the corresponding pnicogen trihalides and sodium tetraisopropylcyclopentadienide (R = CHMe(2)). The molecular structures of 1, 2, and 3 as well as the related structure of [(C(5)HR(4))BiCl2] (4) display increasing pi character of hetero atom to cyclopentadienyl bonding with increasing metallic character of the hetero atom.
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关键词
dichloro(tetraisopropylcyclopentadienyl)phosphane, dibromo(tetraisopropylcyclopentadienyl)phosphane, dichloro(tetraisopropylcyclopentadienyl)arsane, dichloro(tetraisopropylcyclopentadienyl)stibane, dichloro(tetraisopropylcyclopentadienyl)bismutane, crystal structure
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