1,1 '-di(tert-butyl)metallocenium cations. The x-ray crystal structures of[M((C5H4Bu)-Bu-t)(2)]PF6 (M = Fe, Co) and [Co((C5H4Bu)-Bu-t)(2)](2)CoCl4

Authors
Herberhold, M Cheng, YX Jin, GX Milius, W
Citation
M. Herberhold et al., 1,1 '-di(tert-butyl)metallocenium cations. The x-ray crystal structures of[M((C5H4Bu)-Bu-t)(2)]PF6 (M = Fe, Co) and [Co((C5H4Bu)-Bu-t)(2)](2)CoCl4, Z NATURFO B, 55(9), 2000, pp. 814-820
Citations number
52
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
09320776 → ACNP
Volume
55
Issue
9
Year of publication
2000
Pages
814 - 820
Database
ISI
SICI code
0932-0776(200009)55:9<814:1'CTXC>2.0.ZU;2-C
Abstract
The hexafluorophosphate salts [Fe((C5H4Bu)-Bu-t)(2)]PF6 (1) and [Co((C5H4Bu )-Bu-t)(2)]PF6 (2) crystallize in isotypic structures with centrosymmetric cations which have a staggered (transoid) conformation of the exactly paral lel ring Ligands (conformational angle tau = 180 degrees). The tetrachloroc obaltate salt, [CO((C5H4Bu)-Bu-t)(2)](2)CoCl4 (3), contains one almost ecli psed (tau = 140.4 degrees) and one almost staggered (tau = 101.4 degrees) c obaltocenium cation; in both cases, the cyclopentadienyl ring planes are sl ightly inclined (by alpha = 5.4 degrees and 4.1 degrees, respectively) to g ive more room to the tert-butyl substituents which are bent away from the m etal in all three complexes 1 - 3.