Premium
Coordination Chemistry of Nitrile and Amino Pendant Arm Derivatives of [9]aneN 2 S and [9]aneNS 2 with Pd II and Cu II
Author(s) -
Arca Massimiliano,
Blake Alexander J.,
Lippolis Vito,
Montesu Daniela R.,
McMaster Jonathan,
Tei Lorenzo,
Schröder Martin
Publication year - 2003
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/ejic.200390160
Subject(s) - chemistry , nitrile , moiety , stereochemistry , palladium , chelation , crystallography , metal , coordination sphere , medicinal chemistry , metal ions in aqueous solution , copper , crystal structure , inorganic chemistry , organic chemistry , catalysis
Palladium( II ) and copper( II ) complexes [Pd( L 1 )Cl 2 ], [Pd( L 3 )Cl 2 ], [Cu( L 1 )Cl 2 ], [Cu( L 3 )Cl 2 ], [Pd( L 2 )][BF 4 ] 2 , [Pd( L 4 )Cl]BF 4 , [Cu( L 2 )][NO 3 ] 2 and [Cu( L 4 )Cl]PF 6 of the nitrile ( L 1 and L 3 ) and amino ( L 2 and L 4 ) pendant arm derivatives of 1‐thia‐4,7‐diazacyclononane ([9]aneN 2 S) and 7‐aza‐1,4‐dithiacyclononane ([9]aneNS 2 ) have been prepared and fully characterised. In each case, a square‐pyramidal coordination sphere is observed at both metal ions with either one or two Cl − anions completing the donor set. The tridentate nine‐membered macrocyclic moiety adopts a [333] conformation in all the complexes obtained. The five‐membered chelate rings involving the donor atoms of the basal plane adopt a gauche configuration with very similar degrees of puckering. The “innocent” nitrile pendant arms in L 1 and L 3 do not bind to the metal ions, but still appear to influence the binding of the tridentate macrocyclic frameworks via the tertiary amine sites. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)