The dinuclear centrosymmetric title compound, [Cd(2)(C(7)H(14)NS(2))(4)(C(12)H(10)N(4))], features a tetra-dentate 2-pyridine-aldazine ligand that chelates two Cd centres. The coordination geometry for Cd is distorted octa-hedral based on a cis-N(2)S(4) donor set. In the crystal structure, mol-ecules are connected into a supra-molecular chain aligned along the a direction via C-H⋯S and C-H⋯π co...

The Cd(II) atom in the title compound, [Cd(C(5)H(10)NS(2))(2)(C(10)H(8)N(2))], exists in an N(2)S(4) donor set defined by two chelating dithio-carbamate anions as well as a 2,2'-bipyridine ligand. The coordination geometry approximates a trigonal prism. The crystal packing features weak C-H⋯S inter-actions, leading to linear supra-molecular chains along the a axis. The primary connections betwe...

The Zn(II) atom in the title compound, [Zn(C(5)H(10)NS(2))(2)(C(12)H(8)N(2))], exists in a distorted cis-octa-hedral N(2)S(4) donor set defined by two chelating dithio-carbamate anions as well as a 1,10-phenanthroline ligand. Each of the ligands coordinates in a symmetric mode. The crystal packing is stabilized by weak C-H⋯S, C-H⋯π(ZnS(2)C) and π-π [ring centroid distance between centrosymmetri...

The complete mol-ecule of the title compound, [Zn(C(4)H(8)NS(2))(2)(C(10)H(8)N(2))], is generated by crystallographic twofold symmetry, with the Zn atom lying on the rotation axis; the axis also bis-ects the central C-C bond of the 2,2'-bipyridine mol-ecule. The metal atom is chelated by two S,S'-bidentate dithio-carbamate anions and the N,N'-bidentate heterocycle, resulting in a distorted cis-...

Abstract In this paper we determine the number and typical structure of sets integers with bounded doubling. particular, improving recent results Green Morris, Mazur, show that following holds for every fixed $\lambda> 2$ $k \geqslant (\log n)^4$: if $\omega \rightarrow \infty $ as $n (arbitrarily slowly), then almost all $A \subset [n]$ $|A| = k$ $|A + A| \leqslant \lambda are contained...

The Cd(II) atom in the title compound, [Cd(C(6)H(12)NS(2))(2)(C(10)H(8)N(2))], is hexa-coordinated by two dithio-carbamate ligands and the N atoms from a bidentate 2,2'-bipyridyl mol-ecule. The coordination geometry is based on a distorted trigonal-prismatic arrangement of the N(2)S(4) donor set. Supra-molecular chains, aligned along the a-axis direction, are mediated by C-H⋯S inter-actions and...