Tetrakis(ethyl pyridine-4-carboxylate-κN)bis(thiocyanato-κN)cobalt(II)

Abstract

Key indicators: single-crystal X-ray study; T = 298 K; mean (C-C) = 0.009 Å; disorder in main residue; R factor = 0.047; wR factor = 0.122; data-to-parameter ratio = 12.4.In the title complex, [Co(NCS) 2 (C 8 H 9 NO 2 ) 4 ], the Co II atom is six-coordinated by four N atoms from four ethyl pyridine-4-carboxylate ligands in the equatorial plane and two N atoms of thiocyanate ligands in the axial positions, showing a slightly distorted octahedral geometry. The structure exhibits disorder in one of the ethyl chains, which was refined using a two-site model with 0.70 (6):0.30 (6) occupancy. Related literature

Synthesis and Magnetic Properties of Solid Solutions of Ferromagnetic Layered Coordination Polymers Prepared from Solution and the Solid State

“…This approach is based on the thermal decomposition of discrete complexes of the general composition M­(NCS) 2 (L) 4 (M = divalent 3d metal cation; L = coligand) in which the metal cations are octahedral coordinated by two terminal N-bonded anionic ligands and four neutral coligands. Upon heating the coligands are usually removed in discrete steps, which enforces the formation of the coligand deficient compounds with the desired bridging coordination. ,− The synthesis and crystal structures of the discrete complexes with the composition M­(NCS) 2 ­(ethylisonicotinate) 4 (M = Co; 1-Co and M = Ni; 1-Ni ) are already reported in the literature. , Both compounds are also isotypic with very similar lattice parameters and consequently a very similar PXRD pattern (Table S5 and Figure S12). In the beginning, the homometallic compounds were synthesized (Figures S13–S16) to prepare physical mixtures that were investigated by PXRD (Figure S17).…”

“…39,41−43 The synthesis and crystal structures of the discrete complexes with the composition M(NCS) 2 -(ethylisonicotinate) 4 (M = Co; 1-Co and M = Ni; 1-Ni) are already reported in the literature. 45,46 Both compounds are also isotypic with very similar lattice parameters and consequently a very similar PXRD pattern (Table S5 and Figure S12). In the beginning, the homometallic compounds were synthesized (Figures S13−S16) to prepare physical mixtures that were investigated by PXRD (Figure S17).…”