Synthesis, crystal structures and properties of Ni(NCS)2-4-(hydroxymethyl)pyridine coordination compounds

Synthesis, Structures and Properties of Cobalt Thiocyanate Coordination Compounds with 4-(hydroxymethyl)pyridine as Co-ligand

“…The powder pattern of this compound is similar to the one from the corresponding Ni compound, which was recently reported [53]. Rietveld analysis of 1-H 2 O (see Experimental Section, Table 1 and Figure S2 in the Supplementary Material) confirmed that both complexes are isostructural.…”

“…In the case of a copper(II)dipiconilate-4-(hydroxymethyl)pyridine coordination compound, the Cu(II) cations are linked by 4-(hydroxymethyl)pyridine ligands into chains, which was also observed in Ni(NCS) 2 (4-(hydroxymethyl)pyridine) 2 [53,54].…”

“…Its crystal structure was determined from XRPD data by refining the recently reported, isostructural Ni-complex (see Experimental Section, Table 1 and Figure S7 in the Supplementary Material) [53]. [Co(NCS)2(hmpy)2] crystallizes in the monoclinic space group P21/c with four formula units in the unit cell and all atoms lying on general positions.…”

“…The thermogravimetric curve of 1-H 2 O looks similar, except that a further mass loss is observed at lower temperatures, which is associated with the removal of water molecules, which are located in the crystal cavities ( Figure 6 and Figure S20 in the Supplementary Material). In order to check whether the water removal leads to compound 1, as it was recently reported for the isostructural Ni-complex [53], the measurement was repeated and interrupted after the first mass loss. XRPD investigations showed, that a phase of poor crystallinity was obtained, which could neither be identified nor indexed.…”

“…It is noted, that a few coordination compounds with this ligand were recently reported, which showed only coordination by the pyridine N atom except for two different metal complexes [48][49][50][51][52][53]. In the case of a copper(II)dipiconilate-4-(hydroxymethyl)pyridine coordination compound, the Cu(II) cations are linked by 4-(hydroxymethyl)pyridine ligands into chains, which was also observed in Ni(NCS) 2 (4-(hydroxymethyl)pyridine) 2 [53,54].…”