ABSTRACT: In the title compound, [Mn(NCS)(2)(C(17)H(20)N(4))], the Mn(II) atom is six-coordinated by the N,N',N'',N'''-tetra-dentate Schiff base ligand and by two trans-N atoms from two thio-cyanate anions, forming a distorted octa-hedral geometry. The dihedral angle between the aromatic rings of the Schiff base is 9.5 (3)°.
Project description:In the title complex, [Ni(NCS)(2)(C(17)H(20)N(4))], the Ni(2+) ion (site symmetry 2) is coordinated by the N,N,N,N-tetra-dentate Schiff base ligand and two thio-cyanate ligands, forming a distorted NiN(6) octa-hedral geometry, with the thio-cyanate N atoms in a trans orientation. The pendant methyl group of the central propane-1,2-diamine fragment of the ligand is statistically disordered over two sets of positions. In the crystal, weak aromatic ?-? stacking between pyridine rings [centroid-centroid separation = 3.7081?(17)?Å] may help to establish the packing.
Project description:In the title compound, [Ni(NCS)(2)(C(11)H(17)N(3))(H(2)O)], the Ni(II) ion is six-coordinated by the N,N',N"-tridentate Schiff base N atoms, two cis-positioned N-bound isothio-cyanate groups and one water mol-ecule. In the crystal, O-H⋯S hydrogen bonds link adjacent mol-ecules into infinite layers parallel to the ac plane. The layers are further connected into a three-dimensional network via C-H⋯π inter-actions. The -CH(2)-N(CH(3))(2) fragment is disordered over two sets of sites in a 0.556 (5):0.444 (5) ratio.
Project description:In the title complex, [Cu(NCS)(2)(C(12)H(19)N(3))], the Cu(II) atom is five-coordinated in a square-pyramidal geometry defined by one pyridine N, one imine N, and one amine N atom of the tridentate Schiff base ligand and two N-bonded thio-cyanate ions (one of the latter occupying the apical site). The three bridging C atoms and the two terminal C atoms of the Schiff base are disordered over two sets of sites, with occupancies of 0.465?(2) and 0.535?(2).
Project description:The mol-ecule of the title compound, [Mn(NCS)(2)(C(16)H(18)N(4))], has crystallographic twofold rotation symmetry, with the Mn(II) atom lying on the rotation axis. The Mn(II) atom is six-coordinated by four N atoms of the Schiff base ligand and by two N atoms of two thio-cyanate ligands, forming a distorted octa-hedral geometry.
Project description:In the title compound, [Zn(NCS)(C(16)H(18)N(4))]ClO(4), the Zn(II) atom is five-coordinated by four N atoms of the Schiff base ligand N,N'-bis-[1-(2-pyrid-yl)ethyl-idene]ethane-1,2-diamine in the basal plane, and by the N atom of a thio-cyanate ligand at the apical position, forming a distorted square-pyramidal geometry. The r.m.s. deviation from a plane through the four N atoms of the Schiff base is 0.015?(3)?Å, and the deviation of the Ni atom from that plane is 0.591?(2)?Å. Bond lengths are comparable with those observed in similar zinc(II) complexes with Schiff bases. The two methyl-ene C atoms of the ethane-1,2-diamine bridge of the Schiff base ligand are disordered over two sites with occupancies of 0.587?(3) and 0.413?(3).
Project description:The asymmetric unit of the binuclear title compound, [Cd(2)(NCS)(4)(C(24)H(20)N(6))(2)], contains one half-mol-ecule, consisting of one Cd(2+) cation, two half 1,2-bis-{[2-(2-pyrid-yl)-1H-imidazol-1-yl]meth-yl}benzene (L) ligands and two SCN(-) anions. The dimeric cyclic mol-ecule is completed by crystallographic inversion symmetry. The Cd(2+) cation is coordinated by two N atoms from two SCN(-) anions and four N atoms from two symmetry-related L ligands, exhibiting a distorted octrahedral coordination. A two-dimensional supra-molecular network stacked parallel to [210] is finally formed by linking these dimers through weak π-π stacking inter-actions between the pyridine rings and benzene rings of adjacent dimers, with a plane-to-plane distance of 3.36 (6) Å and a centroid-centroid distance of 3.67 (2) Å. One of the thio-cyanate S atoms is equally disordered over two positions.
Project description:The asymmetric unit of the title compound [Mn(NCS)(2)(C(9)H(13)N)(4)] consists of one Mn(II) cation located on a center of inversion, one thio-cyanato anion, one 3-tert-butyl-pyridine ligand and one 4-tert-butyl-pyridine ligand in general positions. The tert-butyl group of the 4-tert-butyl-pyridine ligand is disordered over two sets of sites in a 0.60:0.40 ratio. The Mn(II) cation is coordinated by six N atoms of four tert-butyl-pyridine ligands and two N-bonded thio-cyanato anions within a slightly distorted octa-hedral coordination environment.
Project description:In the title compound, [Cu(NCS)(C(17)H(20)N(4))]BF(4), the Cu(II) ion is five-coordinated by the four N atoms of the tetra-dentate Schiff base ligand and one N atom of a thio-cyanate ligand, thereby forming a square-pyramidal CuN(5) ccoordination geometry. The dihedral angle between the pyridine rings of the Schiff base is 55.58?(14)°. The F atoms of the tetra-fluoridoborate anion are disordered over two sets of sites with occupancies of 0.614?(3) and 0.386?(3). In the crystal, the components are linked by C-H?F inter-actions.
Project description:In the title mononuclear copper(II) compound, [CuBr(NCS)(C(10)H(15)N(3))], the Cu(II) atom is five-coordinated by three N atoms of the Schiff base ligand, the N atom of a thio-cyanate ligand and by one bromide ion forming a distorted square-pyramidal geometry. In the crystal structure, mol-ecules are linked through inter-molecular N-H?Br hydrogen bonds into chains propagating along [101].
Project description:The title complex, [Mn(NCS)(2)(C(13)H(19)NO(4))] {systematic name: [3,6,9,12-tetra-oxa-18-aza-bicyclo-[12.3.1]octa-cosa-14(18),15,17-triene-κ(5)N,O,O',O'',O''']bis-(thio-cyanato-κN)manganese(I-I)}, was obtained by the reaction of MnCl(2)·4H(2)O and NaSCN with pyridino-15-crown-5. The Mn(2+) center has a distorted penta-gonal bipyramidal coordination geometry, coordinated by four O atoms and one N atom of the pyridino-15-crown-5 mol-ecule, and by the N atoms of the two NCS(-) ligands.