metal-organic compounds
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The asymmetric unit of the title cocrystal, [Sn(CH3)(C6H5)Cl2(H2O)2]·C10H20O5, contains two independent formula units. The organotin molecules exhibit a six-coordinate metal atom and are linked to the crown ether molecules by water–crown ether O—HO hydrogen bonds into a linear chain running along [101]. Each coordinated water molecule forms a pair of hydrogen bonds to the same crown ether; for the crown ether molecules, only four of the five O atoms are engaged in hydrogen-bonding interactions. The metal ions show a distorted trans-C2SnCl2O2 octahedral coordination geometry [C—Sn—C = 175.3 (1) and 178.9 (1)°].
metal-organic compounds
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The Sn, Cl and water O atoms of the title compound, [Sn2(CH3)4Cl4(H2O)2]·C10H20O5, lie on a special position of 2 site symmetry. The SnIV atom shows cis-C2SnCl2O trigonal–bipyramidal coordination [C—Sn—C = 157.0 (1)°]; however, two [Me2SnCl2(H2O)] units are linked by a tin–chlorine bridge [Sn←Cl = 3.247 (1) Å] across a center of inversion, generating a dinuclear species, so that the geometry is better regarded as a mer-C2SnCl3O octahedron. The crown ether interacts through O—HO hydrogen with the metal atom through the coordinated water molecules in an outer-sphere manner, generating a hydrogen-bonded chain running along [101]. The 15-crown-5 molecule is disordered over the 2/m site.
metal-organic compounds
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In the title compound, [PbBr2(C14H12N2)]n, the PbII atom lies on a twofold rotation axis. The N-heterocycle-chelated PbII atom exists in a distorted octahedral geometry owing to two long PbBr interactions [2.9562 (5) and 3.2594 (5) Å]. These result in a zigzag chain running along the c axis. The lone pair is stereochemically inactive.
metal-organic compounds
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In the title salt, (C13H14NO2)[Sn(C10H6NO2)Cl4], the SnIV cation is N,O-chelated by the quinolincarboxylate unit and further coordinated by four Cl− anions in a distorted octahedral geometry. In the crystal, the 2-[(propan-2-yloxy)carbonyl]quinolin-1-ium cation is linked to the Sn complex anion by an N—HO hydrogen bond.
metal-organic compounds
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The reaction of 8-hydroxyquinoline, 2-methylquinolin-8-ol and stannic chloride yields the protonated 8-hydroxy-2-methylquinolinium species. In the title salt, (C10H10NO)[Sn(C9H6NO)Cl4], the SnIV cation is N,O-chelated by the quinolin-8-olate anion and is further coordinated by four Cl− anions in a distorted cis-SnNOCl4 octahedral geometry. In the crystal, the cation is linked to the anion by an O—HO hydrogen bond.
metal-organic compounds
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The reaction of 4-(dimethylamino)pyridine, picolinic acid and stannic chloride yields the title monosolvated salt, (C13H10NO)[SnCl4(C6H4NO2)]·CH3OH. The SnIV atom is N,O-chelated by the picolinate ion in a cis-SnNOCl4 octahedral geometry. The cation is linked to the methanol solvent molecule by an O—HO hydrogen bond; the solvent molecule itself is a hydrogen-bond donor to the uncoordinating carboxylate O atom of the anion. The cations and anions are linked by weak N—HCl interactions, forming a chain running along the b axis.
metal-organic compounds
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The reaction of 4-(dimethylamino)pyridine, picolinic acid and stannic chloride yields the title salt, (C7H11N2)[SnCl4(C6H4NO2)], in which the SnIV atom is N,O-chelated by the picolinate ion in a cis-SnNOCl4 octahedral geometry. The cation is linked to the anion by an N—HO hydrogen bond.
metal-organic compounds
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In the title monomeric trimethyltin(IV) isothiocyanate–4,4-dimethylpyridine adduct, [Sn(CH3)3(NCS)(C7H10N2)], the SnIV atom shows a trans-C3SnN2 trigonal bipyramidal coordination. The SnIV atom lies out of the equatorial plane by 0.033 (4) Å in the direction of the donor N atom of the N-heterocycle. The crystal studied was a non-merohedral twin with a minor component of 48.8 (2)%.
metal-organic compounds
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The cupferronate ions in the centrosymmetric dinuclear title compound, [Pb2(C6H5N2O2)4], O,O′-chelate to the two PbII atoms; two of the four nitroso O atoms are also involved in bridging. The geometries of the five-coordinate PbII atoms in the two independent molecules are Ψ-octahedral; if more remote PbO interactions are also considered, the coordination number is increased to six for one molecule and to seven for the other. Their coordination polyhedra are ill defined in the chain motif, which runs along [100].
metal-organic compounds
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The SnIV atom in the title compound, [Sn(CH3)2(NCS)2(C12H8N2)], is located on a twofold rotation axis in a distorted octahedral enviroment. The methyl groups are trans to each other [C—Sn—C = 175.7 (3)°], whereas the thiocyanate groups are cis to each other.
metal-organic compounds
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The tetranuclear title compound, [Sn4(CH3)8(C2H5O)2O2(C3H4N3S)2], lies about a center of inversion; the molecule features a three-rung-staircase Sn4O4 core in which two SnIV atoms are bridged by the 4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal SnIV atom at a shorter distance [Sn—N = 2.240 (3) Å] compared with the neutral N atom that binds to the central SnIV atom [Sn← N = 2.641 (3) Å]. The terminal SnIV atom is five-coordinate in a cis-C2SnNO2 trigonal–bipyramidal geometry [C—Sn—C = 127.5 (2)°], whereas the central SnIV atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C—Sn—C = 145.0 (2)°].
metal-organic compounds
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The tetranuclear title compound, [Sn4(CH3)8(C3H7O)2O2(C3H4N3S)2], lies about a center of inversion; the molecule features a three-rung-staircase Sn4O4 core in which two SnIV atoms are bridged by the 4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal SnIV atom at a shorter distance [Sn—N = 2.236 (2) Å] compared with the neutral N atom that binds to the central SnIV atom [Sn← N = 2.805 (2) Å]. The terminal SnIV atom is five-coordinate in a cis-C2SnNO2 trigonal–bipyramidal geometry [C—Sn—C = 136.4 (1)°], whereas the central SnIV atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C—Sn—C = 145.4 (1)°]. The C atoms of the isopropoxy group are disordered over two positions in a 0.591 (7):0.409 (7) ratio.
metal-organic compounds
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In the title compound, [Sn2(CH3)6(NCS)2(C24H22N4)], the 1,2,3,4-tetrakis(pyridin-4-yl)butane ligand uses the pyridine N atoms at the ends of the butyl chain to coordinate to two trimethylthiocyanatotin(IV) units, forming a dinuclear structure. The SnIV atom in the molecule shows a distorted trans-trigonal–bipyramidal coordination with the methyl groups in equatorial positions. The molecule lies on a center of inversion, with the mid-point of the butyl chain coinciding with this symmetry element. In the crystal, weak C—Hπ interactions occur between pyridine rings of adjacent molecules.
metal-organic compounds
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The SnIV cation in the title compound, [Sn(CH3)2(C10H8NO)2], is N,O-chelated by two 2-methylquinolin-8-olate anions and coordinated by two methyl groups in a skew-trapezoidal bipyramidal geometry. In the molecule, the two quinoline ring systems are twisted to one another at 10.91 (18)°. The dimethyltin skeleton [C—Sn—C = 149.6 (2)°] is bent over the longer edge of the trapezoid that is defined by the four chelating atoms. Weak intermolecular C—HO hydrogen bonding occurs in the crystal.