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Dinuclear Triple‐Stranded Helicates from Rigid Oligo‐ p ‐phenylene Ligands: Self‐Assembly and Ligand Self‐Recognition
Author(s) -
Albrecht Markus,
Schneider Matthias
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(200206)2002:6<1301::aid-ejic1301>3.0.co;2-q
Subject(s) - chemistry , homoleptic , self assembly , ligand (biochemistry) , counterion , phenylene , molecular recognition , stereochemistry , solvophobic , coordination complex , crystallography , ion , molecule , metal , organic chemistry , receptor , polymer , biochemistry
The rigid rod oligo‐ p ‐phenylene type dicatechol ligands 1‐3‐ H 4 form dinuclear triple‐stranded helicates M 4 [( 1−3 ) 3 Ti 2 ] in the presence of appropriate counterions (M = Li, Na, K, or NH 4 ). Studies on the self‐recognition ability of the ligands show that self‐recognition takes place if mixtures of ligands with significantly different sizes ( 1 / 2 ) are used in coordination studies, or if ligands are used which do not match for geometric reasons ( 1 / 4 ). Mixtures of ligands with a similar geometric preference ( 2 / 5 ) do not lead to self‐recognition, but instead give mixtures of hetero‐ and homoleptic complexes. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)