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Diastereoselectivity of Octahedral Cobalt(II) Pybox Complexes
Author(s) -
Provent Christophe,
Bernardinelli Gérald,
Williams Alan F.,
Vulliermet Nathalie
Publication year - 2001
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200108)2001:8<1963::aid-ejic1963>3.0.co;2-#
Subject(s) - chemistry , cobalt , octahedron , crystallography , inorganic chemistry , crystal structure
The cobalt(II) complexes prepared with a series of enantiopure ligands ( 1 − 3 ) containing the bis(oxazolinyl)pyridine unit have been studied. The ligands form high spin octahedral complexes as shown by the X‐ray crystal structure of the homochiral complex [Co( R,R ‐ 1 ) 2 ](ClO 4 ) 2 (CH 3 CN) 3 . The diastereoselectivity of complex formation has been studied: equimolar mixtures of RR and SS ligands show mixtures of homochiral and heterochiral complexes for 2 and 3 , but the phenyl‐substituted ligand 1 shows exclusive formation of the heterochiral species. This selectivity is correlated with structural and electronic properties of the complexes.