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Three new diorganotin(IV) selenites, [BuSn(OSeCHOMe)] ( 1), [MeSn(OSeCHCHMe)] ( 2), [MeSn(OSeCHEt)] ( 3) have been synthesized and structurally characterized by elemental analysis, FT-IR, NMR (H, C and Sn) spectra, TGA, and X-ray crystallography. The X-ray reveals that complexes 1-3 are 1D infinite double-chain polymers. The molecular of complex 1 is further linked by intermolecular C-H···O interactions to form a 2D network polymer. Complex 3 is linked by C-H···O interactions to form a 3D organotin framework. [ABSTRACT FROM AUTHOR]

Abstract: Eight new organotin (IV) carboxylates, (R3Sn)4(nap)4 (R = Me 1, n-Bu 2), [(R3Sn) (nap)] n (R = Ph 3, PhCH2 4), (R2Sn) (nap)2 (R = n-Bu 5, Ph 6, PhCH2 7) and {[R2Sn(nap)]2O}2 (R = Me 8) (nap = (S)-(+)-6-methoxy-α-methyl-2-naphthaleneaceto anion) have been synthesized. All of the complexes have been characterized by elemental analysis, FT–IR, NMR (1H, 13C and 119Sn) spectra. Among these complexes, complexes 1, 3, 5 and 8 were also characterized by X-ray crystallography diffraction analysis, and the data of X-ray crystallography diffraction indicated that complexes 1, 3 and 5 are new chiral organotin (IV) carboxylates complexes. The structural analyses show that complex 1 has a tetranuclear Sn4O8 macrocycle structure, complex 3 has a 1D spring-like chiral helical chain with a columnar channel, complex 5 possesses a dimer structure, and complex 8 has a supramolecular chainlike ladder structure through weak intermolecular non-covalent O…O interactions. [Copyright &y& Elsevier]

novel sulphate of organotin was synthesized by the reaction of triphenyltin chloride with silver sulphate. The structure of {[(PhSn)SO] · HO)} · 2EtOH has been determined by X-ray crystallography. The crystal data parameters are as follows: monoclinic, space group Cc, a = 14.146(6), b = 23.844(11), c = 23.777(11) Å, Z = 4. The title compound displays a dimeric tetra-tin nuclear structure. The geometry about tin is trigonal bipyramidal with a trans-OSnC stereochemistry about the metal. Hydrogen bonding between the oxygen atoms of the anion and the solvate water produces a graphite-like 3D network lattice. [ABSTRACT FROM AUTHOR]

new organotin(IV) Schiff base complex 4 containing a novel SnO hydrolysis ladder and a disulfide group has been synthesized through a self-assembly reaction. The complex 4 has been characterized by elemental analysis, IR, H-, C-, and Sn-NMR spectra and X-ray crystallography diffraction analyses. The study of the supramolecular structure of complex 4 found that there exist two kinds of C-H···S and C-H···O intermolecular hydrogen bonds. The two kinds of intermolecular hydrogen bonds force the complex 4 into a 2-dimensional 'wave' network. The geometry about each tin atom involved is distorted trigonal bipyramid. [ABSTRACT FROM AUTHOR]

Abstract: Nine triorganotin(IV) complexes of the type R3SnL (L=L1 R=Me 1, Ph 2, PhCH2 3; L=L2 R=Me 4, Ph 5, PhCH2 6; L=L2 R=Me 7, Ph 8, PhCH2 9) have been obtained by reaction of new Schiff base HL1, HL2 or HL3 with triorganotin(IV) chloride in the presence of sodium ethoxide. All the complexes 1–9 were characterized by elemental, IR and NMR spectra analyses. Except for complexes 3, 4, 6, 9, the others were also characterized by X-ray crystallography diffraction analyses, which revealed that complexes 1, 2, 5, 7, 8 were four coordinated and displayed a capped tetrahedron. [Copyright &y& Elsevier]

Abstract: A new macrocycle dimethyltin(IV) complex 1 has been synthesized by the reaction of 5-phenyl-1,3,4-oxadiazole-2-thiol with dimethyltin dichloride in the presence of sodium ethoxide. The complex 1 has been characterized by elemental, IR, 1H, 13C, 119Sn NMR spectra and X-ray crystallography diffraction analyses. X-ray data reveal that a 24-membered macrocycle associated by intermolecular CO non-bonded weak interactions. The geometry about each tin atom involved is distorted trigonal bipyramidal. [Copyright &y& Elsevier]

The triethylammonium dicarboxylatotriorganostannates, [(C2H5)3NH][R3Sn(3,5-pdc)] · mH2O (3,5-pdc = 3,5-pyridinedicarboxylate) (m = 1, R = Me 1; m = 0, R = Ph 2, PhCH23, n-Bu 4), [(C2H5)3NH][R3Sn(5-nip)] (5-nip = 5-nitroisophthalate) (R = Me 5, Ph 6, PhCH27,n-Bu 8) have been prepared from triethylamine, 3,5-pyridinedicarboxylic acid, 5-nitroisophthalic acid and triorganotin chloride. Complexes 1–8 have been characterized by elemental, IR, 1H, 13C and 119Sn NMR analyses. Complexes 1, 2, 5 and 6 are also determined by single crystal X-ray diffraction. For 1, 2, 5 and 6, each carboxylate moiety is involved in coordination to a tin center via only one O atom showing that the Sn atoms are five-coordinate and exist in trigonal bipyramidal geometries. Moreover, for 2, 5 and 6, the nitrogen atoms of ammonium are hydrogen bonded to the pendant carboxyl oxygen. In 1, adjacent polymeric chains and triethylammonium are linked by hydrogen bonds through the co-crystallized water molecule, thus a 2D network is formed. [ABSTRACT FROM AUTHOR]

Abstract: Eight new organoantimony(V) complexes with 1-phenyl-1H-tetrazole-5-thiol [L1H] and 2,5-dimercapto-4-phenyl-1,3,4-thiodiazole [L2H] of the type R n SbL5− n (L=L1: n =4, R= n-Bu 1, Ph 2, n =3, R=Me 3, Ph 4; L=L2: n =4, R= n-Bu 5, Ph 6, n =3, R=Me 7, Ph 8) have been synthesized. All the complexes 1–8 have been characterized by elemental, FT-IR, 1H and 13C NMR analyses. Among them complexes 2, 6 and 8 have also been confirmed by X-ray crystallography. The structure analyses show that the antimony atoms in complexes 2 and 6 display a trigonal bipyramid geometry, while it displays a distorted capped trigonal prism in complex 8 with two intramolecular Sb⋯N weak interactions. Furthermore, the supramolecular structure of 2 has been found to consist of one-dimensional linear molecular chain built up by intermolecular C–H⋯N weak hydrogen bonds, while a macrocyclic dimer has been found in complex 6 linked by intermolecular C–H⋯S weak hydrogen bonds with head-to-tail arrangement. Interestingly, one-dimensional helical chain is recognized in complex 8, which is connected by intermolecular C–H⋯S weak hydrogen bonds. [Copyright &y& Elsevier]

Abstract: The triorganotin(IV) derivatives of 2-mercapto-4-quinazolinone (HSqualone) of the type, R3SnL (R=Ph 1, CH3 2, PhCH2 3, p-F-PhCH2 4, o-F-PhCH2 5, n-Bu 6), were obtained by the reaction of the R3SnCl and HSqualone with 1:1 molar ratio in benzene. All complexes 1–6 were characterized by elemental analyses, IR, 1H and 13C NMR spectroscopy and the crystal structures of complexes 1–3 were also confirmed by X–ray crystallography. The structure analyses reveal that the tin atoms of complexes 1–3 are all distorted tetrahedral geometries. Furthermore, the dimeric structures in complexes 1–3 have also been found linked by intermolecular O–H⋯N or N–H⋯O hydrogen bonding interaction. Interestingly, the dimers of complexes 2 and 3 are further linked into one-dimensional chain through intermolecular C–H⋯S and C–H⋯O weak hydrogen bonding interactions, respectively. [Copyright &y& Elsevier]

Abstract: A series of diorganotin (IV) complexes of the types of R2SnCl(SSCC3H3N2) (R=CH3 1, n Bu 2, C6H5 3 and C6H5CH2 4), R2Sn(SSCC3H3N2)2 (R=CH3 5, n Bu 6, C6H5 7 and C6H5CH2 8) and R2Sn(SSCC3H2N2) (R=CH3 9, n Bu 10, C6H5 11 and C6H5CH2 12) have been obtained by reactions of 4(5)-imidazoledithiocarboxylic acid with diorganotin (IV) dichlorides in the presence of sodium ethoxide. All complexes are characterized by elemental, IR, 1H, 13C and 119Sn NMR spectra analyses. Also, the complexes 1, 7 and 9 are characterized by X-ray crystallography diffraction analyses, which reveal that the complex 1 is monomeric structure with five-coordinate tin (IV) atom, the complex 7 is monomeric structure with six-coordinate tin (IV) atom and the complex 9 is one-dimensional chain with five-coordinate tin (IV) atom. [Copyright &y& Elsevier]

A series of triorganotin and triorganogermanium(IV) complexes with 1H-5-mercapto-1,2,3-triazolato, of the type R3MSC2H2N3 (M=Sn, R=CH3, (1); C2H5, (2); n-C4H9, (3); C6H5, (4); M=Ge, R=CH3, (5); C2H5, (6); n-C4H9, (7); C6H5, (8)), have been synthesized. All the complexes 1–8 have been characterized by elemental, IR and 1H NMR analyses. Among them complexes 4 and 8 have also been characterized by X-ray crystallography diffraction analyses, which revealed that the Sn and Ge atom environments are distorted tetrahedral coordination polyhedrons, coordinated to three phenyl groups and to one sulfur atom of the ligand. The packing of complexes 4 and 8 is stabilized into a one-dimensional infinite chain by intermolecular N–H⋯N hydrogen bonds. [Copyright &y& Elsevier]

A series of organotin(IV) complexes with 2-mercapto-6-nitrobenzothiazole (HMNBT) of the type, [RnSn(MNBT)4 − n] (n=2, R=Me, 4; n=3, R=Me, 5; n-Bu, 6; Ph, 7; PhCH2, 8) were synthesized. All the complexes 4–8 have been characterized by elemental, IR and 1H NMR analyses. Among them, complexes 4, 7 and 8 were also characterized by X-ray crystallography diffraction analyses, which revealed that the structures of both complexes 7 and 8 are penta-coordinated with R3Sn coordinated to the thiol S and heterocyclic N atoms, and the structural distortion for each is a displacement from tetragonal towards trigonal bipyramidal geometry. For complex 4, the geometry of the center tin atom is a distorted trapezoidal bipyramid. Besides, intermolecular S⋯S and Sn⋯S non-bonded interactions were recognized in crystal structures of complexes 4 and 7, respectively. The IR and 1H NMR spectral data indicate such an inclination that those structures of trialkyltin derivatives are apt to be penta-coordinated and those dialkyltin derivatives are likely in six-coordination. [Copyright &y& Elsevier]

The 18-membered stereoregular diphenyltin macrocycles: {Ph2Sn[S(C6H3NO)O]}3 (8), {Ph2Sn[S(C6H3NO)O]}3·2.67H2O (9) and {Ph2Sn[S(C6H3NO)O]}3·4C6H6 (10) have been synthesized by the reaction of diphenyltin dichloride with 2-mercaptonicotinic acid. The three complexes were characterized by elemental, IR, 1H-NMR analyses. The X-ray crystallography analyses of 9 and 10 were also given. Single crystal X-ray diffraction data reveal that both 9 and 10 are highly symmetrical tri-nuclear cyclic complexes with the ligand 2-mercaptonicotinic acid bridging the adjacent tin atoms. The tin environment is distorted cis-trigonal bipyramid. Weak interaction Sn⋯O was recognized between tin and exocyclic-oxygen atoms. The potential tridentate of endocyclic sulfur atoms make them interesting ligands. [Copyright &y& Elsevier]