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Versatile Coordination Modes of 2,6‐Bis(2‐(diphenylphosphanyl)‐1 H ‐imidazol‐1‐yl)pyridine in Cu(I) and Au(I) Complexes
Author(s) -
Kumar Saurabh,
Mague Joel T.,
Balakrishna Maravanji S.
Publication year - 2020
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.202000520
Subject(s) - chemistry , ligand (biochemistry) , pyridine , copper , crystal structure , crystallography , stereochemistry , chelation , monomer , imidazole , atom (system on chip) , dimer , medicinal chemistry , polymer , inorganic chemistry , organic chemistry , biochemistry , receptor , computer science , embedded system
Synthesis, and copper(I) and gold(I) complexes of imidazole‐based bisphosphine, [2,6‐(PPh 2 C 3 H 2 N 2 ) 2 C 5 H 3 N] are described. Reactions of [2,6‐(PPh 2 C 3 H 2 N 2 ) 2 C 5 H 3 N] with one equivalent of CuX (X = Cl, Br or I) yielded either monomeric [{2,6‐{PPh 2 C 3 H 2 N 2 } 2 C 5 H 3 N}{CuI}], dimeric [{PPh 2 C 3 H 2 N 2 } 2 C 5 H 3 N}{CuCl}] 2 , or one‐dimensional (1D) polymeric [{2,6‐(PPh 2 ‐C 3 H 2 N 2 ) 2 C 5 H 3 N}{Cu 3 Br 2 }] n Cl complexes. Coordination polymer [{2,6‐(PPh 2 C 3 H 2 N 2 ) 2 C 5 H 3 N}{Cu 3 Br 2 }] n Cl is a rare example containing alternately arranged copper atoms having tetrahedral and linear geometries. The repeating unit consists of imidazolyl nitrogen atoms from two ligands bind to a copper atom in a linear fashion, whereas two phosphorus atoms from the same ligand are chelated to a tetrahedral copper atom, thus ligand displaying tetradentate behavior. Treatment of bisphosphine with two equivalents of [AuCl(SMe 2 )] yielded digold complex [2,6‐(PPh 2 C 3 H 2 N 2 ) 2 C 5 H 3 N{AuCl} 2 ]. The structures of most of these compounds were confirmed by single‐crystal X‐ray analyses. These complexes show good photoluminescence properties as well.