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Selective Self‐Assembly of a Sequential Bipyridine−Bipyrazine Ligand Strand into a Double‐Stranded Cu I Helicate
Author(s) -
Mathieu Julien,
Marsura Alain,
Bouhmaida Nouzha,
Ghermani Noureddine
Publication year - 2002
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(200209)2002:9<2433::aid-ejic2433>3.0.co;2-p
Subject(s) - chemistry , ligand (biochemistry) , bipyridine , stereochemistry , self assembly , ion , crystallography , combinatorial chemistry , receptor , crystal structure , organic chemistry , biochemistry
In this paper new aspects on the self‐assembly processes of didentate coordinating ligands leading to a double‐stranded helicate are described. It was reported, that directionality in the self‐recognition of Cu I ions could be driven by factors relating to the electronic configuration of heterocycles in carefully designed heterotopic ligands. If the sequential bipyrazine−bipyridine ligand strand 4 reacts with 1 equiv. of Cu I the dimetallic complex [Cu 2 ( L4 ) 2 ][PF 6 ] 2 is formed in a cooperative process. In this coordination compound the two strands are oriented in opposite directions (HT) as illustrated by the X‐ray structure of [Cu 2 ( L4 ) 2 ][PF 6 ] 2 . (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)