The Sn(IV) atom in the title carboxyl-ate-bridged polymer, [Sn(C(7)H(7))(3)(C(9)H(7)O(2))](n), exists in a trans-C(3)SnO(2) trigonal-bipyramidal geometry (average covalent Sn-O = 2.167 Å, average dative Sn-O = 2.361 Å and average O-Sn-O = 169.6°). The polymer propagates as a helical chain along the b axis with a repeat distance that is half the b-axial length. There are four independent formula units in the asymmetric unit; two are disposed about a false center of inversion with respect to the other two so that the space group emulates a centric space group.
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 title compound, C(10)H(12)ClN(3)OS, the -C=N-N-C- chain bridging the ethyl-imino group and the benzene ring adopts an extended conformation with a C-N-N-C torsion angle of -171.98 (11)°. The imino H atom of the chain is a hydrogen-bond donor to the S atom of an inversion-related mol-ecule, forming a supra-molecular dimer. The hy-droxy H atom is intra-molecularly hydrogen bonded to the azomethine N atom.
In the title Schiff base mol-ecule, C(13)H(11)ClN(2)O, the non-H atoms are approximately coplanar (r.m.s. deviation = 0.115 Å) and the two benzene rings are twisted by 9.36 (3)° with respect to each other. The hy-droxy group is hydrogen bonded to the azomethine N atom. In the crystal, an N-H⋯π inter-action is observed between the imino group and the hy-droxy-benzene ring of an adjacent mol-ecule.
Mol-ecules of the title compound, [Sn(C(7)H(6)Cl)(2)Cl(2)], lie on a twofold rotation axis which passes through the Sn atom. The Sn(IV) atom exists in a distorted tetra-hedral geometry. Adjacent mol-ecules are linked by weak Sn⋯Cl contacts [3.703 (1) Å], forming a linear chain motif extending along the b axis.
The crystal structure of the title compound, (C(9)H(14)N)(2)[CuBr(4)], consists of two quarternary ammonium cations and a tetra-hedral cuprate anions. Weak C-H⋯Br hydrogen bonding is present between the cation and anion in the crystal structure.
In the title salt, (C(9)H(14)N)[CdBr(2)Cl], the Cd(II) atom is five-coordinated in a trigonal-bipyramidal coordination environment. All three of the halogen sites show disorder as a result of substitution of Cl for Br or Br for Cl. Two of the three halogen atoms are involved in bridging a pair of Cd(II) atoms, generating a linear polyanionic chain motif.
In the crystal structure of the zinc(II) complex of bicine, [Zn(C(6)H(12)NO(4))(2)], the deprotonated amino acid O,N,O'-chelates to the metal atom through a carboxyl-ate O atom, a hy-droxy O atom and the N atom, the three atoms occupying fac positions of the distorted octa-hedron surrounding the metal atom. The metal atom lies on a center of inversion. The uncoordinated carboxyl-ate O atom is hydrogen bonded to the hy-droxy groups of adjacent mol-ecules, these two hydrogen bonds leading to the formation of a three-dimensional network.
In the title mol-ecular salt, [C(6)H(5)(CH(3))(3)N](2)[SnBr(4.75)Cl(1.25)], the Sn(IV) atom (site symmetry ) adopts an octa-hedral coordination geometry. The Br and Cl atoms are disordered over three sites in 0.7415 (13):0.2585 (14), 0.8514 (14):0.1486 (14) and 0.7821 (14):0.2179 (14) ratios.
The asymmetric unit of the title compound, C(7)H(11)NO(3)S(2), contains two independent mol-ecules with similar mol-ecular structures. The morpholine ring adopts a chair conformation, and the C(2)N-C(=S)-S fragment is planar in the two independent mol-ecules (r.m.s. deviations = 0.01 and 0.02 Å). The two mol-ecules are disposed about a false center of inversion and are held together by a pair of O-H⋯O hydrogen bonds. The crystal studied was a racemic twin; the minor twin component refined to 17%.
The two independent mol-ecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C(10)H(9)NO(3), are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both mol-ecules, the -OH group forms an intra-molecular hydrogen bond to the amide O atom. Adjacent mol-ecules are linked by N-H⋯O hydrogen bonds into a flat ribbon that runs along the a axis of the monoclinic unit cell.
The Mn(II) atom in the two independent ion-pairs of the title salt, [Mn(C(2)F(3)O(2))(C(18)H(12)N(6))(H(2)O)(2)]C(2)F(3)O(2), is N,N',N''-chelated by the neutral N-heterocycle and O,O'-chelated by the carboxyl-ate ion, the five atoms involved in chelation comprising a penta-gon around it. The apical sites of the trans-penta-gonal bipyramidal coordination geometry are occupied by two water mol-ecules. The cations and lattice anions are linked by O-H⋯O and O-H⋯N hydrogen bonds into a three-dimensional network.
The Cd atom in the hydrated title salt, (C(7)H(11)N(2))(2)[CdBr(4)]·H(2)O, exists in an approximately tetra-hedral coordination geometry, with Br-Cd-Br angles in the range 105.52 (3)-111.50 (3)°. The cation, anion and water mol-ecule inter-act by O-H⋯Br, N-H⋯Br and N-H⋯O hydrogen bonds, forming a linear chain structure running along the a axis.
The Sn atom in the title mol-ecule, [Sn(C(6)H(5))(3)(C(16)H(10)NO(3))(C(2)H(6)O)], shows a trans-C(3)SnO(2) trigonal bipyramidal coord-in-ation. Adjacent mol-ecules are linked by O-H⋯O and O-H⋯N hydrogen bonds into a two-dimensional array parallel to (100). The ethanol ligand is disordered, with two sites of equal occupancy being resolved for the ethyl group.
The title compound, [Sn(C(7)H(7))(2)Cl(2)], exists as a monomeric tetra-hedral mol-ecule. The Sn atom lies on a special position of site symmetry 2. Adjacent mol-ecules are linked into a linear chain running along the b axis of the monoclinic unit cell by Sn⋯Cl bridges of 3.7275 (4) Å.
The Sn atoms in the dinuclear title compound, [Sn(2)Br(2)(C(7)H(7))(4)(OH)(2)], exist in distorted trigonal-bipyramidal BrSnC(2)O(2) coordination geometries. Each of the two independent dinuclear mol-ecules comprising the asymmetric unit is disposed about a center of inversion. In the crystal, molecules are linked by an O-H⋯ hydrogen bond.
The Sn atom in the title salt, (C(7)H(11)N(2))(2)[SnBr(4.67)Cl(1.33)], lies on a center of symmetry within an octa-hedron of disordered halogen atoms. The three independent halogen atoms are each a mixture of bromine and chlorine atoms [with site occupancies for bromine of 0.614 (1), 0.831 (1) and 0.888 (1)]. An N-H⋯ hydrogen bond is present.
In the salt, (H(3)O)(2)[Cd(2)Br(4.5)Cl(1.5)]·6C(18)H(15)OP, the hydro-nium cation forms short O-H⋯O hydrogen bonds to the O atoms of the triphenyl-phosphine oxide units. The centrosymmetric dinuclear anion has two halide atoms functioning in a bridging mode, which confers tetra-hedral coordination to the Cd atom. The three independent halide atoms are each a mixture of bromide and chloride; the occupancies of the Br atoms are 0.6434 (11), 0.7468 (11) and 0.8598 (11).
The bis-chelated Sn atom in the title compound, [Sn(C(10)H(8)NO)(2)Cl(2)], exists in a distorted cis-Cl(2),cis-N(2),trans-O(2) octa-hedral environment.
The metal atom in the anion of the title salt, (C(6)H(14)N(2))[CdBr(4)]·H(2)O, shows a slightly distorted tetra-hedral coordination. The water mol-ecule is involved in three hydrogen bonds, viz. one N-H⋯O and two O-H⋯Br, and an N-H⋯Br inter-action consolidates the three-dimensional network.