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From σ to π Coordination: Tetraisopropylcyclopentadienyl dichlorides [(C 5 HR 4 )ECl 2 ] (R = CHMe 2 ) of phosphorus, arsenic, antimony, and bismuth
Author(s) -
Ehleiter Yvonne,
Wolmershäuser Gotthelf,
Sitzmann Helmut,
Boese Roland
Publication year - 1996
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/zaac.19966220602
Subject(s) - bismuth , antimony , atom (system on chip) , character (mathematics) , arsenic , metal , crystallography , crystal structure , phosphorus , chemistry , coordination number , cyclopentadienyl complex , inorganic chemistry , stereochemistry , ion , catalysis , organic chemistry , geometry , mathematics , computer science , embedded system
[(C 5 HR 4 )PCl 2 ] ( 1a ), [(C 5 HR 4 )PBr 2 ] ( 1 b ), [(C 5 HR 4 )AsCl 2 ] ( 2 ), and [(C 5 HR 4 )SbCl 2 ] ( 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 )BiCl 2 ] ( 4 ) display increasing π character of hetero atom to cyclopentadienyl bonding with increasing metallic character of the hetero atom.