Crystal structure of bis{5-(4-chlorophenyl)-3-[6-(1 H -pyrazol-1-yl)pyridin-2-yl]-1 H -1,2,4-triazol-1-ido}nickel(II) methanol disolvate

• Published in: Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2024-11, Vol.80 (11), p.1235-1239
• Main Authors: Znovjyak, Kateryna, Shova, Sergiu, Panov, Dmitriy M., Kariaka, Nataliia S., Fritsky, Igor O., Malinkin, Sergey O., Seredyuk, Maksym
• Format: Article
• Language: English
• Subjects: bisazolepyridines; crystal structure; neutral complexes; nickel(ii) complexes; tridentate ligands
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989024010338

The unit cell of the title compound, [Ni(C 16 H 10 ClN 6 ) 2 ]·2CH 3 OH, consists of a neutral complex and two methanol molecules. In the complex, the two tridentate 2-(3-(4-chlorophenyl)-1 H -1,2,4-triazol-5-yl)-6-(1 H -pyrazol-1-yl)pyridine ligands coordinate to the central Ni II ion through the N atoms of the pyrazole, pyridine and triazole groups, forming a pseudooctahedral coordination sphere. Neighbouring tapered molecules are linked through weak C—H(pz)...π(ph) interactions into monoperiodic chains, which are further linked through weak C—H...N/C interactions into diperiodic layers. The intermolecular contacts were quantified using Hirshfeld surface analysis and two-dimensional fingerprint plots, revealing the relative contributions of the contacts to the crystal packing to be H...H 32.8%, C...H/H...C 27.5%, N...H/H...N 15.1%, and Cl...H/H...Cl 14.0%. The average Ni—N bond distance is 2.095 Å. Energy framework analysis at the HF/3–21 G theory level was performed to quantify the interaction energies in the crystal structure.