Syntheses, Weak Interactions, and 3D Network Structures of Two Hybrid Salts Containing Bis(iso-maleonitriledithiolate)nickelate(II) Anion and Substituted Chlorobenzyl Triphenylphosphinium Cation

摘要

Two hybrid salts, [2ClBzTPP](2)[Ni(i-mnt)(2)] (1) and [4ClBzTPP](2)[Ni(i-mnt)(2)] (2), were obtained in crystalline form by the reaction of disodium iso-maleonitriledithiolate (K-2(i-mnt)) with nickel(II) chloride hexahydrate and 1-(2 '-chlorobenzyl)triphenyl-phosphonium or 1-(4 '-chlorobenzyl)triphenylphospho-nium bromide ([2ClBzTPP]Br/[4ClBzTPP]Br) in methanol. Two salts were characterized by elemental analyses, UV, IR, ESI-MS, molar conductivity, and single-crystal X-ray diffraction. Both salts crystallize in the triclinic space group P-1 and the central Ni(II) ion has a distorted square planar coordination geometry. Lattice stability is provided by weak interactions observed in 1 and 2 such as C-H center dot center dot center dot S, C-H center dot center dot center dot Cl, and C-H center dot center dot center dot Ni hydrogen bonds and pi center dot center dot center dot pi or p center dot center dot center dot pi interactions, which results in the forming of a 3D network structure.

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