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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2018,130(27):8211-8215
The reaction of [(Cp*Mo)2(μ‐Cl)2B2H6] ( 1 ) with CO at room temperature led to the formation of the highly fluxional species [{Cp*Mo(CO)2}2{μ‐η2:η2‐B2H4}] ( 2 ). Compound 2, to the best of our knowledge, is the first example of a bimetallic diborane(4) conforming to a singly bridged Cs structure. Theoretical studies show that 2 mimics the Cotton dimolybdenum–alkyne complex [{CpMo(CO)2}2C2H2]. In an attempt to replace two hydrogen atoms of diborane(4) in 2 with a 2e [W(CO)4] fragment, [{Cp*Mo(CO)2}2 B2H2W(CO)4] ( 3 ) was isolated upon treatment with [W(CO)5⋅thf]. Compound 3 shows the intriguing presence of [B2H2] with a short B−B length of 1.624(4) Å. We isolated the tungsten analogues of 3 , [{Cp*W(CO)2}2B2H2W(CO)4] ( 4 ) and [{Cp*W(CO)2}2B2H2Mo(CO)4] ( 5 ), which provided direct proof of the existence of the tungsten analogue of 2 . 相似文献
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MohammedIbrahim Shukoor Filipe Natalio Nadine Metz Natalie Glube MuhammadNawaz Tahir HelenAnnal Therese Vadim Ksenofontov Patrick Theato Peter Langguth Jean‐Paul Boissel HeinzC. Schrder WernerE.G. Müller Wolfgang Tremel 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2008,120(25):4826-4830
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