Crystal Structure of Tetrakis(dimethyl N-cyanodithioiminocarbonate) Bis[(aqua)-μ2-hydroxy-n-butyldichloridotin(IV)]

The reaction between two equivalents of dimethyl N-cyanodithioiminocarbonate, [( MeS)(2)C=N-C=N] (1), one equivalent of n- butyltin trichloride, Sn(n- Bu)Cl-3 and one equivalent of sodium hydroxide, NaOH led to isolation of a dinuclear complex {[Sn(n-Bu)Cl-2(OH)(H2O)](2)} (2) which co-crystallized with four [(MeS)(2)C=N-C=N] molecules, {[Sn(n-Bu)Cl-2(OH) (H2O)](2)[(CH3S)(2)C=N-C=N](4)} (3). The compound was investigated by single-crystal X-ray diffraction analysis and infrared spectroscopy. Compound 3 crystallizes in the triclinic space group P 1 with a = 9.8208(15), b = 11.2664(17), c = 12.0446(18) angstrom, a = 106.236(5), ss = 111.510(5),gamma = 97.710(6)degrees, V = 1147.9( 3) angstrom(3), Z = 1 and Z' = 0.5. In the complex, two aqua-n-butyltinhydroxide dichloride moieties, [ Sn(n-Bu) Cl-2(OH)(H2O)], are bridged by the hydroxides. The hydroxide bridges bond lengths describe a static trans effect yielding a dissymmetry in Sn-O bonding. Two inner O-2-H2D center dot center dot center dot Cl1 hydrogen bonds strengthen the dinuclear component. The dimethyl N-cyanodithioiminocarbonate molecules are linked to the dinuclear component through the hydroxide bridges and the water molecules by O1-H1 center dot center dot center dot N2A and O-2-H2C center dot center dot center dot N2B hydrogen bonding patterns of D type, respectively. The [(MeS)2C=N-C=N] molecules exhibit a positional disorder. These hydrogen bonding interactions lead to cyclic patterns generating R-1(1)(6) and R-2(2)(8) rings. Additional C-H.Cl and C-H.N hydrogen bond patterns also contribute to the crystal structure framework: they give rise to a 3D structure. [GRAPHICS]