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Synthesis, crystal structure and thermal properties of poly[bis-[μ₂-3-(amino-meth-yl)pyridine]-bis-(thio-cyanato)-cobalt(II)].

ABSTRACT: The reaction of Co(NCS)₂ with 3-(amino-meth-yl)pyridine as coligand leads to the formation of crystals of the title compound, [Co(NCS)₂(C₆H₈N₂)₂] _n , that were characterized by single-crystal X-ray analysis. In the crystal structure, the Co^II cations are octa-hedrally coordinated by two terminal N-bonded thio-cyanate anions as well as two pyridine and two amino N atoms of four symmetry-equivalent 3-(amino-meth-yl)pyridine coligands with all pairs of equivalent atoms in a trans position. The Co^II cations are linked by the 3-(amino-meth-yl)pyridine coligands into layers parallel to the ac plane. These layers are further linked by inter-molecular N-H⋯S hydrogen bonding into a three-dimensional network. The purity of the title compound was determined by X-ray powder diffraction and its thermal behavior was investigated by differential scanning calorimetry and thermogravimetry.

SUBMITTER: Krebs C

PROVIDER: S-EPMC8025872 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of poly[[μ-4-(hy-droxy-meth-yl)pyridine-κ(2) N:O][4-(hy-droxy-meth-yl)pyridine-κN](μ-thio-cyanato-κ(2) N:S)(thio-cyanato-κN)cadmium].

Project description:The crystal structure of the title compound, [Cd(NCS)2(C6H7NO)2] n is made up of Cd(2+) cations that are coordinated by three thio-cyanate ligands and three 4-(hy-droxy-meth-yl)pyridine ligands within distorted N4OS octa-hedra. The asymmetric unit consists of one Cd(2+) cation, two thio-cyanate anions and two 4-(hy-droxy-meth-yl)pyridine ligands in general positions. Two Cd(2+) cations are linked by two μ-1,3 N- and S-bonding thio-ycanate anions into dimers which are further linked into branched chains along [100] by two μ-1,6 N- and O-bonding 4-(hy-droxy-meth-yl)pyridine ligands. One additional N-bonded 4-(hy-droxy-meth-yl)pyridine ligand and one additional N-bonded thio-cyanate anion are only terminally bonded to the metal cation. Inter-chain O-H⋯S hydrogen bonds between the hy-droxy H atoms and one of the thio-cyanate S atoms connect the chains into a three-dimensional network.

| S-EPMC4459314 | biostudies-literature

catena-Poly[[bis-(pyridine-κN)cadmium]-di-μ(2)-thio-cyanato-κN:S;κS:N].

Project description:The asymmetric unit of the title compound, [Cd(NCS)(2)(C(5)H(5)N)(2)](n), consists of two crystallographically independent Cd(II) cations, four thio-cyanato anions and four pyridine ligands. The Cd(II) atoms are each coordinated by four N atoms from two pyridine ligands and two thio-cyanato anions, each in a mutually cis orientation, and by two S atoms from two adjacent thio-cyanato anions within a slightly distorted octa-hedral coordination environment. The Cd(II) atoms are μ-1,3-bridged via the thio-cyanato anions into polymeric chains parallel to [001]. The Cd(II)⋯Cd(II) intra-chain separations range between 5.9688 (6) and 6.0195 (6) Å, whereas the shortest Cd(II)⋯Cd(II) inter-chain separations are 7.8272 (7) and 8.6312 (6) Å.

| S-EPMC3099960 | biostudies-literature

Poly[bis-(cyanato-κN)bis-(μ-pyrazine-κN:N')cobalt(II)].

Project description:In the crystal structure of the title compound, [Co(NCO)(2)(C(4)H(4)N(2))(2)](n), the Co(II) cation is coordinated by four N-bonded pyrazine ligands and two N-bonded cyanate anions in a slightly distorted octa-hedral geometry. The crystal structure consists of μ-N:N' pyrazine-bridged cobalt cyanate chains; these are further linked by additional μ-N:N'-bridging pyrazine ligands into layers, which are stacked perpendicular to the crystallographic a axis. The C and O atoms in both crystallographic independent cyanate anions are disordered in two orientations and were refined using a split model with site occupation factor ratios of 0.75/0.25 and 0.7/0.3.

| S-EPMC2968858 | biostudies-literature

catena-Poly[silver(I)-bis-[μ-bis-(diphenyl-phosphino)methane-κP:P']-μ-thio-cyanato-κS:S-silver(I)-μ-thio-cyanato-κS:N].

Project description:The title compound, [Ag(NCS)(C(25)H(22)P(2))](n), contains two Ag(+) ions, two thio-cyanate ions and two bis-(diphenyl-phosphino)methane (dppm) ligands in the asymmetric unit. One of the thiocyanate ions bridges the two Ag(+) ions in a μ(2)-mode from its S atom and the two dppm ligands bridge the silver ions in a μ(1),μ(1) mode. The remaining SCN(-) ion bridges the binuclear units via its N and S atoms, generating a one-dimensional polymer propagating in [01]: the resulting AgP(2)SN and AgP(2)S(2) coordination geometries could be described as distorted tetra-hedral.

| S-EPMC2983356 | biostudies-literature

Crystal structures of tetra-kis-(pyridine-4-thio-amide-κN)bis-(thio-cyanato-κN)cobalt(II) monohydrate and bis-(pyridine-4-thio-amide-κN)bis-(thio-cyanato-κN)zinc(II).

Project description:Reaction of Co(NCS)2 and Zn(NCS)2 with 4-pyridine-thio-amide led to the formation of compounds with composition [Co(NCS)2(C6H6N2S)4]·H2O (1) and [Zn(NCS)2(C6H6N2S)2] (2), respectively. The asymmetric unit of compound 1, consists of one cobalt(II) cation, two thio-cyanate anions, four 4-pyridine-thio-amide ligands and one water mol-ecule whereas that of compound 2 comprises one zinc(II) cation that is located on a twofold rotation axis as well as one thio-cyanate anion and one 4-pyridine-thio-amide ligand in general positions. In the structure of compound 1, the cobalt(II) cations are octa-hedrally coordinated by two terminal N-bonding thio-cyanate anions and by the N atoms of four 4-pyridine-thio-amide ligands, resulting in discrete and slightly distorted octa-hedral complexes. These complexes are linked into a three-dimensional network via inter-molecular N-H⋯S hydrogen bonding between the amino H atoms and the thio-cyanate S atoms. From this arrangement, channels are formed in which the water mol-ecules are embedded and linked to the host structure by inter-molecular O-H⋯S and N-H⋯O hydrogen bonding. In the structure of compound 2, the zinc(II) cations are tetra-hedrally coordinated by two N-bonding thio-cyanate anions and the N atoms of two 4-pyridine-thio-amide ligands into discrete complexes. These complexes are likewise connected into a three-dimensional network by inter-molecular N-H⋯S hydrogen bonding between the amino H atoms and the thio-amide S atoms.

| S-EPMC5956324 | biostudies-literature

Bis[2-(amino-meth-yl)pyridine-κN,N']bis-(thio-cyanato-κN)copper(II).

Project description:In the title complex, [Cu(NCS)(2)(C(6)H(8)N(2))(2)], the Cu(II) atom, lying on an inversion center, adopts a Jahn-Teller distorted octahedral CuN(6) coordination geometry. The two bidentate 2-amino-methyl-pyridine ligands are coordinated in a trans fashion, while the two thio-cyanate ligands are at the axial positions and coordinate to the Cu atom in a bent mode with a C-N-Cu angle of 127.49 (10)°. Inter-molecular N-H⋯N and N-H⋯S hydrogen bonds link the copper complex mol-ecules into an infinite two-dimensional network.

| S-EPMC2977581 | biostudies-literature

Bis{N(2),N(6)-bis-[(pyridin-3-yl)meth-yl]pyridine-2,6-dicarboxamide-?N}bis-(methanol-?O)bis-(thio-cyanato-?N)cobalt(II).

Project description:In the title compound, [Co(NCS)(2)(C(19)H(17)N(5)O(2))(2)(CH(3)OH)(2)], the Co(II) atom lies on an inversion center and is coordinated by two isothio-cyanate N atoms, two O atoms of methanol mol-ecules and two pyridine N atoms in a slightly distorted octa-hedral environment. Inter-molecular O-H?O and N-H?N hydrogen bonds join the complex mol-ecules into layers parallel to the bc plane.

| S-EPMC3379100 | biostudies-literature

catena-Poly[[bis-(thio-cyanato-?N)cobalt(II)]-di-?-thio-urea-?(4)S:S].

Project description:In the title polymeric complex, [Co(NCS)(2){SC(NH(2))(2)}(2)](n), the asymmetric unit comprises a Co(II) ion, which is situated on an inversion centre, an N-bound thio-cyanate anion and a ?(2)-bridging thio-urea mol-ecule. The Co(II) atom is coordinated in a distorted octa-hedral fashion within an N(2)S(4) donor set. The bridging thio-urea ligands link Co(II) ions into a polymeric chain extending along [100]. The mol-ecular conformation is stabilized by intra-molecular N-H?N hydrogen bonds, which generate S(6) ring motifs. The crystal packing is stabilized by N-H?S inter-actions, which connect the chains into a three-dimensional architecture.

| S-EPMC3414167 | biostudies-literature

Synthesis, crystal structure and thermal properties of poly[bis-[μ-3-(amino-meth-yl)pyridine-κ2 N:N']bis(thio-cyanato-κN)manganese(II)].

Project description:The reaction of Mn(NCS)2 with a stoichiometric amount of 3-(amino-meth-yl)pyridine in ethanol led to the formation of the title compound, [Mn(NCS)2(C6H8N2)2] n , which is isotypic to its Zn, Co and Cd analogues. The manganese cation is located on a centre of inversion and is octa-hedrally coordinated in an all-trans configuration by two terminal N-bonded thio-cyanate anions as well as four 3-(amino-meth-yl)pyridine co-ligands, of which two coordinate with the pyridine N atom and two with the amino N atom. The 3-(amino-meth-yl)pyridine co-ligands connect the MnII cations into layers extending parallel to (10). These layers are further connected into a three-dimensional network by relatively strong inter-molecular N-H⋯S hydrogen bonding. Comparison of the experimental X-ray powder diffraction pattern with the calculated pattern on the basis of single-crystal data proves the formation of a pure crystalline phase. IR measurements showed the CN stretching vibration of the thio-cyanate anions at 2067 cm-1, which is in agreement with the presence of terminally N-bonded anionic ligands. TG-DTA measurements revealed that the title compound decomposes at about 500 K.

| S-EPMC8340975 | biostudies-literature

catena-Poly[[(2-{[2-(dimethyl-ammonio)-eth-yl]imino-meth-yl}pyridine-?(2)N,N')bis-(thio-cyanato-?N)manganese(II)]-?-thio-cyanato-?(2)N:S].

Project description:In the title one-dimensional coordination polymer, [Mn(NCS)(3)(C(10)H(16)N(3))](n), the Mn(II) atom is coordinated by an N,N'-bidentate Schiff base and four thio-cyanate ligands in a distorted octa-hedral N(5)S geometry. Bridging thio-cyanate ligands inter-connect adjacent [Mn(NCS)(2)(C(10)H(16)N(3))] units, giving rise to helical chains extending along the b axis. The chains are further linked through N-H?S hydrogen bonds, leading to a three-dimensional supra-molecular network.

| S-EPMC3414171 | biostudies-literature