Two New Coordination Polymers of Cadmium with Bridging Thiocyanate Ligands: Composition and Structure
V. V. Kovaleva, *, Yu. V. Kokunova, †, M. A. Shmeleva, Yu. K. Voroninaa, M. A. Kiskina,
A. A. Sidorova, and I. L. Eremenkoa, b
a Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
b Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russia
Correspondence to: *е-mail: kovavlad@igic.ras.ru
†Deceased.
Received 13 September, 2022
Abstract—Methods for the synthesis of new cadmium thiocyanate complexes with 3,5- and 2,6-lutidine (3,5- and 2,6-Lut, respectively), [Cd(NCS)2(3,5-Lut)2]n⋅nMeCN (I) and [Cd(NCS)2(2,6-Lut)]n (II), are developed. The synthesized complexes are characterized. The use of 2,6-lutidine is shown to generate steric hindrances because of which only one molecule of the N-donor ligand can coordinate to the cadmium atom. The crystal packings of complexes I and II are stabilized by intermolecular π…π, S…S, and C–H…S interactions. The compounds are characterized by X-ray diffraction (XRD) (CIF files CCDC nos. 2034816 (I) and 2206062 (II)) and C,H,N-analysis data.
Keywords: cadmium thiocyanates, 2,6-lutidine, 3,5-lutidine, X-ray diffraction analysis
DOI: 10.1134/S107032842270021X