975 research outputs found
Poly[[(μ3-isonicotinato-κ3 O:O:N)(triphenylphosphine-κP)silver(I)] ethanol solvate]
In the crystal structure of {[Ag(C6H4NO2)(C18H15P)]·C2H6O}n, the 4-pyridylcarboxylate ion binds to the phosphine-coordinated silver atoms through one of the two oxygen atoms of the carboxyl unit, and to a third phosphine-coordinate silver atom through the nitrogen atom of the aromatic ring, giving a distorted tetrahedral coordination at the metal atom. The μ
3-bridging mode leads to a layer motif; the disordered ethanol molecules are linked to the free carboxyl oxygen atom by O—H⋯O hydrogen bonds
10-Hydroxybenzo[h]quinolin-1-ium tetrachlorido(pyridine-2-carboxylato-κ2 N,O)stannate(IV) methanol monosolvate
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—H⋯O 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—H⋯Cl interactions, forming a chain running along the b axis
2-Methoxycarbonylpyridinium tetrachlorido(pyridine-2-carboxylato-κ2 N,O)stannate(IV)
In the reaction of pyridine-2-carboxylic acid and stannic chloride in methanol, one equivalent of the carboxylic acid is protonated at the amino site and is also esterified, yielding the title salt, (C7H8NO2)[SnCl4(C6H4NO2)]. The SnIV atom in the anion is N,O-chelated by a pyridine-2-carboxylate in a cis-SnNOCl4 octahedral geometry. The cation is linked to the anion by an N—H⋯O hydrogen bond
Di-μ2-methanolato-bis(μ-4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetrakis[dimethyltin(IV)]
The title distannoxane, [Sn4(CH3)8(C3H4N3S)2(CH3O)2O2], lies about a center of inversion; the tetranuclear molecule features a three-rung-staircase Sn4O4 core in which the two crystallographically independent SnIV atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn—N = 2.239 (2) Å] compared with the neutral N atom that binds to the central Sn atom [Sn← N = 2.757 (3) Å]. The oxide O atom is three-coordinate whereas the methanolate O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C3SnNO trigonal–bipyramidal environment, whereas the central Sn atom is six-coordinate in a C2SnNO3 skew-trapezoidal–bipyramidal geometry
4-(Dimethylamino)pyridinium tetrachlorido(pyridine-2-carboxylato-κ2 N,O)stannate(IV)
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—H⋯O hydrogen bond
Di-n-butylbis(thiocyanato-κN)(1,10-phenanthroline-κ2 N,N′)tin(IV)
In the asymmetric unit of the title compound, [Sn(C4H9)2(NCS)2(C12H8N2)], there are two independent molecules, both lying on a twofold rotation axis. The axis passes through the mid-point of the 1,10 and 5,6 bonds of the N-heterocycle and through the Sn atom. The Sn atoms show a slightly distorted SnC2N4 octahedral coordination
8-Hydroxy-2-methylquinolinium tetrachlorido(quinolin-2-olato-κ2 N,O)stannate(IV) methanol disolvate
In the reaction of 8-hydroxyquinoline, 2-methyl-8-hydroxyquinoline and stannic chloride, the 2-methyl-8-hydroxyquinoline is protonated, yielding the disolvated title salt, (C10H10NO)[SnCl4(C9H6NO)]·2CH3OH. The SnIV atom in the anion is N,O-chelated by the hydroxyquinolinate in a cis-SnNOCl4 octahedral geometry. In the crystal, the cation, anion and solvent molecules are linked by N—H⋯O, O—H⋯O and O—H⋯Cl hydrogen bonds, generating a three-dimensional network
Methyl(phenyl)bis(quinoline-2-carboxylato-κ2 N,O)tin(IV) monohydrate
The SnIV atom in each of the two independent molecules in the asymmetric unit of the title compound, [Sn(CH3)(C6H5)(C10H6NO2)2]·H2O, is N,O-chelated by two quinoline-2-carboxylate ions; the dative Sn—N bonds are significantly longer than the covalent Sn—O bonds. The two O and two N atoms comprise a trapezoid, and the diorganotin skeleton is bent over the longer N—N edge [C—Sn—C = 144.2 (1) and 144.5 (1)° in the two independent molecules]. The uncoordinated water molecules serve to connect the skew-trapezoidal bipyramidal tin-bearing molecules, generating a linear chain motif running along the ac diagonal. The crystal studied was a non-merohedral twin having a minor component of 33.2 (1)%
Di-μ2-methanolato-bis(μ-4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetrakis[dibutyltin(IV)]
The asymmetric unit of the title distannoxane, [Sn4(C4H9)8(C3H4N3S)2(CH3O)2O2], contains two molecules, each of which lies about an individual center of inversion. The tetranuclear molecule features a three-rung-staircase Sn4O4 core in which two independent SnIV atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn—N = 2.262 (3), 2.254 (3) Å] compared with the neutral N atom that binds to the central Sn atom[SnN = 2.617 (4); 2.830 (3) Å]. The oxide O atom is three-coordinate whereas the methanolate O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C3SnNO trigonal–bipyramidal environment, whereas the central Sn atom is six-coordinate in a C2SnNO3 skew-trapezoidal–bipyramidal geometry
Dimethyl(4′-pyridyl-2,2′:6′,2′′-terpyridine-κ3 N 1,N 1′,N 1′′)bis(thiocyanato-κN)tin(IV)
The Sn atom in the title compound, [Sn(CH3)2(NCS)2(C20H14N4)], is N,N′,N′′-chelated by the terpyridine part of the N-heterocycle. The Sn atom exists in a trans-C2SnN5 pentagonal–bipyramidal geometry [C—Sn—C = 173.66 (8)°] with the methyl groups in axial and the N atoms in equatorial positions
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