Structures of tetrakis(4-benzoylpyridine)bis(isothiocyanato)cobalt(II) (1) and bis(4-acetylpyridine)diaquabis(isothiocyanato)cobalt(II) (2)

Abstract

(4)AI. In the 4-acetylpyridine ligands the acetyl group is twisted from the pyridine ring plane by 14.1 (1) °. There is extensive intermolecular hydrogen bonding between the water groups and the thiocyanates and acetyl groups in adjacent molecules.

Influence of metal coordination and co-ligands on the magnetic properties of 1D Co(NCS)2 coordination polymers

“…If more co-ligand is used the known complexes Co(NCS) 2 (4-vinylpyridine) 4 and Co(NCS) 2 (4-benzoylpyridine) 4 are formed. 58,60 IR spectroscopic investigations revealed the CN stretching vibration at values of 2100 cm À1 (1) and 2111 cm À1 , respectively 2132 cm À1 (2), clearly indicating that in these compounds the Co(II) cations are linked by the anionic ligands ( Fig. S2 and S3, ESI †).…”

“…It is noted that for these two co-ligands the crystal structures of compounds of composition Co(NCS) 2 (4-vinylpyridine) 4 as well as Co(NCS) 2 (4-benzoylpyridine) 4 were already reported, where the 4-vinylpyridine compound existed in two polymorphic modifications. [58][59][60] These compounds consist of discrete complexes, in which the Co(II) cations are octahedrally coordinated by two terminal N-bonded thiocyanato anions and four N-coordinating co-ligands. Moreover, the crystal structure of a compound of composition Co(NCS) 2 (4-vinylpyridine) 2 was also reported, that exactly corresponded to the composition expected for the desired chain compound.…”

Tetrakis(4-benzoylpyridine-κN)bis(isothiocyanato-κN)manganese(II)

“…It is also noted that two additional chain compounds with Cd II and Ni II are reported in literature (Jochim et al, 2018;Neumann et al, 2018a). Finally, there are one Ni II (Soliman et al, 2014), one Co II (Drew et al,1985), one Zn and one Cd compound (Neumann et al, 2018a) that are isotypic with the title complex.…”

1-Methyl-4-(4-nitrobenzoyl)pyridinium perchlorate

“…For related pyridinium ions, see: Kolev et al (2001Kolev et al ( , 2005Kolev et al ( , 2006. For complexes of 4-benzoylpyridine with transistion metals, see: Araki et al (2005); Mautner & Gohera (1998); Gohera & Mak (1998); Escuer et al (2000); Gohera & Mautner (1999); Drew et al (1985); Gotsis & White (1987). Respective co-crystals and derivatives are discussed in Sugiyama et al (2002a,b) and Syed et al (1984).…”

“…Its electrochemical (Leventis et al, 2004a,b) and host/guest (Rawashdeh et al, 2008) characteristics have already been reported earlier. However, considering research on the behaviour in the crystal state, only 4-benzoylpyridine as a mother compound was described so far in complexes with transition metals (Araki et al, 2005;Mautner & Gohera, 1998;Gohera & Mak, 1998;Escuer et al, 2000;Gohera & Mautner, 1999;Drew et al, 1985;Gotsis & White, 1987) as well as in co-crystals with various benzoic acids (Sugiyama et al, 2002a,b) and being derivatized with chlorine in the para position of the benzene ring (Syed et al, 1984). Structural studies on the respective benzoyl-pyridinium species are rather rare both featuring a squaric acid group at the nitrogen atom (Kolev et al, 2001;Kolev et al, 2005).…”