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Synthesis and Structure of Dimeric Chloro(cyclopentadienyl)bismuthenium Cations
Author(s) -
Sitzmann Helmut,
Wolmershäuser Gotthelf,
Boese Roland,
Bläser Dieter
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199912)625:12<2103::aid-zaac2103>3.0.co;2-d
Subject(s) - chemistry , cyclopentadienyl complex , crystallography , crystal structure , stereochemistry , x ray crystallography , derivative (finance) , ring (chemistry) , medicinal chemistry , diffraction , catalysis , physics , organic chemistry , financial economics , optics , economics
A new modification of the cyclopentadienylbismuth dihalide [(C 5 HR 4 )BiCl(μ‐Cl)] 2 ( 1 ) (R = CHMe 2 ) has been characterized by X‐ray diffraction. The coordination of the five‐membered ring as well as the arrangement of the chloro bridges differ from those of the known modification. On reaction of 1 or its pentaalkylated derivative [(C 5 Me 2 R 3 ‐1,2,4)BiCl(μ‐Cl)] 2 ( 2 ) with AlCl 3 the bismuthenium salts [(C 5 Me 2 R 3 )Bi(μ‐Cl)] 2 2+ [AlCl 4 – ] 2 ( 3 ) and [(C 5 HR 4 )Bi(μ‐Cl)] 2 2+ [AlCl 4 – ] 2 ( 4 ) have been obtained. Both are centrosymmetric dimers without solvent coordination. Only for 4 a very weak interaction with the counterion could be detected.