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New Tris(pyrazolyl)triazine and Pyrazolylpyridine Gold( I ) and Palladium( II ) Derivatives Based on the 3,5‐Bis(4‐butoxyphenyl)pyrazole Group − Architectures with Different Types of Bonding Interactions
Author(s) -
Claramunt Rosa M.,
Cornago Pilar,
Cano Mercedes,
Heras José V.,
Gallego M. Luz,
Pinilla Elena,
Torres M. Rosario
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.200300039
Subject(s) - chemistry , ligand (biochemistry) , pyrazole , supramolecular chemistry , tris , triazine , hydrogen bond , pyridine , palladium , stereochemistry , polymer chemistry , molecule , crystallography , medicinal chemistry , crystal structure , organic chemistry , catalysis , biochemistry , receptor
Abstract The 3,5‐bis(4‐butoxyphenyl)pyrazolyl group (Pz bp2 ) has been used as a building block for mono‐ and polymetallic derivatives of 2,4,6‐tris[3,5‐bis(4‐butoxyphenyl)pyrazol‐1‐yl]‐1,3,5‐triazine (TPz bp2 Tz, 1 ), 2‐[3,5‐bis(4‐butoxyphenyl)pyrazol‐1‐yl]pyridine (Pz bp2 Py, 2 ), and 3,5‐bis(4‐butoxyphenyl)pyrazole (HPz bp2 , 3 ) ligands. The synthesis and characterisation of the new hexadentate ligand 1 are described, together with the chemistry of its metal complexes containing [Pd(η 3 ‐C 3 H 5 )] + and [Au(PPh 3 )] + fragments. The related complexes containing Pz bp2 Py ( 2 ) were also studied and their structural characteristics were compared to those of the TPz bp2 Tz species. The role of the counter‐ion on the supramolecular assembly of complexes containing the HPz bp2 ligand 3 was made clear by the X‐ray structures of [Pd(η 3 ‐C 3 H 5 )(HPz bp2 ) 2 ](BF 4 ) and [Au(HPz bp2 )(PPh 3 )](NO 3 ). Hydrogen bonds and/or bonding interactions are responsible for pseudohelical one‐dimensional polymers or supramolecular columnar arrays, respectively. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)