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The Bis(cyclopentadienyl)thallate( I ) Anion Isoelectronic with Stannocene
Author(s) -
Armstrong David R.,
HerbstIrmer Regine,
Kuhn Annja,
Moncrieff David,
Paver Michael A.,
Russell Christopher A.,
Stalke Dietmar,
Steiner Alexander,
Wright Dominic S.
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199317741
Subject(s) - isostructural , bent molecular geometry , cyclopentadienyl complex , ion , chemistry , crystallography , symmetry (geometry) , ab initio , conformational isomerism , ab initio quantum chemistry methods , crystal structure , molecule , catalysis , geometry , organic chemistry , mathematics
A bent thallocene anion is found in complexes 1 and 2 , which are prepared by the reaction of [CpTl] and [Cp 2 Mg] (for 1 ) or [CpLi] (for 2 ) and N,N,N ′, N ′, N ″‐pentamethyldiethylenediamine (PMDETA). The [(η 5 ‐Cp) 2 Tl] − anion is isoelectronic and isostructural with stannocene. Ab initio calculations show that the bent structure with C S symmetry is only marginally more stable than the linear conformer with D 5h symmetry.