1156490-80-0Relevant academic research and scientific papers
Preparation and characterization of macrocyclic dinickel complexes coligated by tetrazolate ligands
Lozan, Vasile,Voitekhovich, Sergei V.,Gaponik, Pavel N.,Ivashkevich, Oleg A.,Kersting, Berthold
, p. 496 - 502 (2008)
The dinuclear nickel(II) complex [Ni2LCl]+ (1), where (L)2- represents a 24-membered macrocyclic hexamine-dithiophenolate ligand, reacts readily with 5-R-tetrazolate ligands to give the complexes [Ni2L(RCN4)]+, where R = H (2), Me (3), Ph (4). The new complexes were either isolated as perchlorate or tetraphenylborate salts and fully characterized by elemental analysis, UV/Vis, and IR spectroscopy. The structures of 2[BPh4] · MeCN, 3[BPh 4] · 2MeCN, and 4[BPh4] · MeCN were determined by X-ray crystallography, showing that all tetrazolate units are in a 2,3-bridging mode to generate dioctahedral N3Ni(μ-S) 2(μ-N4CR)NiN3 core structures. The RCN 4- groups interact less strongly with the [Ni 2L]2+ fragment than pyrazolate ligands (CH) 3N2- as reflected in the longer Ni-N distances.
