The Sn(IV) atom in the title compound, [Sn(C(4)H(9))(2)(C(18)H(11)BrN(2)O(3))], shows a distorted cis-C(2)NO(2)Sn trigonal-bipyramidal coordination. One of the butyl chains is disordered over two sites in a 0.60 (1):0.40 (1) ratio.
The pyridine-coordinated Cu(II) atom in the title Schiff base complex, [Cu(C(15)H(11)N(3)O(5))(C(5)H(5)N)], is O,N,O'-chelated by the doubly deprotonated Schiff base ligand. The metal centre is in a square-planar coordination geometry.
In the title compound, [Cu(C(21)H(22)N(2)O(2))], the cyclo-hexyl ring adopts a chair conformation with the two imine groups linked at equatorial positions. The Cu(II) ion is coordinated by two N atoms and two O atoms from the bis-Schiff base ligand in a slightly distorted square-planar geometry. The dihedral angle between the two benzene rings is 45.89 (9)°. The crystal structure is devoid of any classical hydrogen bonds. However, inter-molecular C-H⋯O inter-actions are present and stabilize the structure.
The tin atom in the title compound, [Sn(C(7)H(6)Cl)(3)(C(11)H(11)O(4))], exists in a distorted tetra-hedral coordination environment. The carboxyl-ate anion is equally disordered over two positions.
The Sn(IV) atom in the title compound, [Sn(C(7)H(6)Cl)(3)(C(10)H(9)O(2))], exists in a tetra-hedral geometry [Σ C-Sn-C = 341.5 (4)°]. If the doubly bonded carbonyl O atom is taken into account for the coordination sphere of Sn [Sn⋯O = 2.808 (2) Å], the coordination geometry can be described as a cis-penta-gonal bipyramid.
Tris(2-chloro-benz-yl)tin hydroxide condenses with 3-mercapto-1,2,4-triazole to form the 1:1 cocrystal of the title compound, [Sn(C(7)H(6)Cl)(3)(C(2)H(2)N(3)S)]. The asymmetric unit contains two mol-ecules which differ only in the position of the nitro-gen-bound H atom of the triazole ring; one mol-ecule is linked to the other mol-ecule by an N-H⋯N hydrogen bond. In the second mol-ecule, two of the chloro-benzyl units are disordered over two positions in a 0.73 (1):0.27 (1) ratio. The Sn atom in both mol-ecules shows a distorted tetra-hedral SnSC(3) coordination.
In the crystal structure of the title salt, K(3)[Pb(CH(3)COO)(2)(NCS)](NCS)(2), the [Pb(CH(3)COO)(2)(NCS)](-) anion exists as a covalently bonded entity in which the acetate anions chelate in an anisobidentate manner. The Pb atom shows a distorted ψ-octa-hedral coordination to four acetate O atoms and one isocyanate N atom, with the stereochemically active lone pair occupying one of the six sites. When the three longer Pb⋯S inter-actions are considered, the eight-coordinate geometry is based on a dodeca-hedron. The Pb(CH(3)COO)(2)(NCS)](-) anion has mirror symmetry. The potassium cations connect the other constituents into a three-dimensional network through electrostatic K⋯N and K⋯S inter-actions.
In the title salt, [C(6)H(5)N(CH(3))(3)][Sn(2)Br(5)(C(7)H(6)Br)(4)], the Sn(IV) atoms of the dinuclear anion are bridged by a Br atom; the Sn-Br(bridge) bond lengths are 2.9818 (5) and 3.0470 (5) Å. Both Sn atoms show a distorted cis-trigonal-bipyramidal coordination geometry that is distorted towards a square pyramid. In the crystal, weak C-H⋯π inter-actions occur between anions and cations.
The five-coordinate Sn atom in the title salt, [(CH(3))(3)(C(6)H(6))N][SnBr(2)(C(6)H(5))(3)], exists in a distorted trans-C(3)SnBr(2) trigonal-bipyramidal coordination geometry. In the crystal structure no obvious hydrogen bonding is observed.
Tricyclo-hexyl-tin cinnamate reacts with 4,4-dimethyl-amino-pyridine hydro-bromide perbromide to form the title compound, [Sn(C(6)H(11))(3)(C(9)H(7)Br(2)O(2))], which exists as a monomeric mol-ecule with the Sn atom in a distorted tetra-hedral C(3)O coordination geometry.
The title compound, [Sn(C(6)H(11))(3)(C(17)H(25)O(3)S)], exists as a monomeric mol-ecule with the Sn(IV) atom in a distorted tetra-hedral C(3)O coordination geometry. The presence of two bulky tert-butyl groups on the carboxyl-ate prevents any hydrogen-bonding inter-actions involving the hy-droxy group.
In the title ammonium polyoxometallate salt, (C(6)H(16)N)(4)[H(2)V(10)O(28)], the anion features O atoms engaged in μ(6)-, μ(3)- and μ(2)-bridging of adjacent V(V) atoms, confering an octa-hedral coordination at each of the twenty unique metal atoms. Two anions are linked by μ(3)- and μ(2)-bridged OH units across a center of inversion, forming a dimer which is linked to the cations by N-H⋯O hydrogen bonds. The cation is disordered over two positions in a 0.776 (4):0.224 (4) ratio in one of the two independent ion pairs in the asymmetric unit, and 0.627 (10):0.373 (10) in the other.
The Sn atom in the title compound, [Sn(C(4)H(9))(2)(C(7)H(5)O(3))(2)], is chelated by the carboxyl-ate groups of 2-hydroxy-benzoate liagnds, and exists in a six-coordinate skew-trapezoidal bipyramidal coordination geometry [C-Sn-C = 140.1 (3)°].
The title compound, C20H28O3, known as 'trichodermaerin' [systematic name: (4E)-4,9,15,16,16-penta-methyl-6-oxa-tetra-cyclo-[10.3.1.0(1,10).0(5,9)]hexa-dec-4-ene-7,13-dione], is a diterpene lactone which was isolated from Trichoderma asperellum. The structure has a tetra-cycic 6-5-7-5 ring system, with the cyclo-hexa-none ring adopting a twisted half-chair conformation and the cyclo-pentane ring adopting a half-chair conformation, whereas the cyclo-heptene and tetra-hydro-furan-anone rings are in chair and envelope (with the methyl-substituted C atom as the flap) conformations, respectively. The three-dimensional architecture is stabilized by C-H⋯O inter-actions.
The six-coordinate Sn(IV) atom in the title compound, [Sn(C(8)H(9))Cl(3)(C(3)H(4)N(2))(2)], shows an octa-hedral coordination. The N atoms of the N-heterocycle are cis to each other. The Sn-N bond that is trans to the Sn-C bond is shorter than the Sn-N bond trans to the Sn-Cl bond. Weak N-H⋯Cl hydrogen bonds link adjacent mol-ecules, generating a double chain running along the c axis.
The crystal structure of the title salt, [Sn(C(7)H(7))(3)(C(18)H(15)AsO)(2)][B(C(6)H(5))(4)], consists of discrete cations and anions; the tin atom of the cation is five-coordinated in a distorted trans-C(3)SnO(2) trigonal-bipyramidal geometry [summation of C-Sn-C angles 360.0 (3)° and O-Sn-O angle 173.1 (1)°]. The structure contains voids of 113 (19) Å(3), but no solvent mol-ecule could reasonably be located there.
In the title tribenzyl-chloridotin-triphenyl-phosphine adduct, [Sn(C(7)H(7))(3)Cl(C(18)H(15)OP)], the Sn(IV) atom is in a trans-C(3)SnClO trigonal-bipyramidal geometry and is displaced out of the C(3)Sn girdle in the direction of the axial Cl atom by 0.112 (1) in one independent mol-ecule and by 0.167 (1) Å in the other. The phenyl ring of one of the six benzyl units was refined as equally disordered over two sets of sites.
In the crystal structure of the title complex, [Cu(2)(CH(3)COO)(4)(C(12)H(11)ClN(2))(2)], the complete binuclear mol-ecule is generated by a crystallographic centre of inversion; the four acetate groups each bridge a pair of Cu(II) atoms. The coordination of the metal atom is distorted octa-hedral within a donor set defined by four O atoms, the heterocyclic N atom and the second Cu atom. The pyridine ring is twisted with respect to the benzene ring, forming a dihedral angle of 33.9 (2)°. An intra-molecular N-H⋯O hydrogen bond is present between the amino group and a carboxyl O atom. Inter-molecular inter-actions of the C-H⋯π type link mol-ecules in the crystal structure.
The title complex, [Cu(2)(CH(3)COO)(4)(C(13)H(14)N(2))(2)], features a binuclear mol-ecule, which lies about a crystallographic centre of inversion; the four acetate ions each bridge a pair of Cu(II) atoms. The coordination of the metal atom is distorted octa-hedral within a donor set defined by four O atoms, the heterocyclic N atom and the second Cu atom. The pyridine ring is twisted with respect to the tolyl ring and forms a dihedral angle of 35.34 (9)°. A bifurcated N-H⋯(O,O) hydrogen bond is present, linking the amine group to two carboxyl-ate O atoms derived from different acetate ions. In the crystal, C-H⋯π inter-actions link mol-ecules into a supra-molecular array in the bc plane.
In the crystal structure of the title binuclear complex, [Cu(2)(CH(3)COO)(4)(C(13)H(14)N(2))(2)], the four acetate groups each bridge a pair of Cu(II) atoms. The coordination of the metal atoms is distorted square-pyramidal, with the bonding O atoms comprising a square basal plane and the coordinating N atom of the N-heterocycle occupying the apical position. In the two N-hetercycle ligands, the benzene rings are twisted with respect to the pyridine rings, making dihedral angles of 53.1 (2) and 54.2 (2)°. Intra-molecular N-H⋯O hydrogen bonding is present between the imino and carb-oxy groups. The crystal studied was a non-merohedral twin with a minor twin component of 21.4%.