title: Linear chains in polymeric dicyclohexylammonium tributyl(4-oxo-4H-pyran-2,6-dicarboxylato)stannate and methylphenylammonium tributyl(pyridine-2,6-dicarboxylato)stannate containing trigonal bipyramidal tin.
abstract: catena-Poly[dicyclohexylammonium [tributyltin-mu-(4-oxo-4H-pyran-2,6-dicarboxylato-O(2):O( 6))]], (C(12)H(24)N)[Sn(C(7)H(2)O(6))(C(4)H(9))(3)], consists of 4-oxo-4H-pyran-2,6-dicarboxylato groups that axially link adjacent tributyltin units into a linear polyanionic chain. The ammonium counter-ions surround the chain, and each cation forms a pair of hydrogen bonds to the double-bond carbonyl O atoms of the same dianionic group. The chain propagates in a zigzag manner along the c axis of the monoclinic cell. In catena-poly[methyl(phenyl)ammonium [tributyltin-mu-(pyridine-2,6-dicarboxylato-O(2):O(6))]], (C(7)H(10)N)[Sn(C(7)H(3)NO(4))(C(4)H(9))(3)], the pyridine-2, 6-dicarboxylato groups also link the tributyltin groups into a chain, but the hydrogen-bonded chain propagates linearly on the ac face of the monoclinic cell.
authors.affiliation: Institute of Postgraduate Studies and Research, University of Malaya, 50603 Kuala Lumpur, Malaysia. h1nswen@umcsd.um.edu.my
authors.forename: S W
authors.initials: SW
authors.lastname: Ng
authors.forename: S
authors.initials: S
authors.lastname: Shanmuga Sundara Raj
authors.forename: H K
authors.initials: HK
authors.lastname: Fun
authors.forename: I A
authors.initials: IA
authors.lastname: Razak
authors.forename: J M
authors.initials: JM
authors.lastname: Hook
mesh_terms: D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D009947:Organotin Compounds / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry*
chemical_list: D009947:Organotin Compounds; D011091:Polyesters; C413869:poly(dicyclohexylammonium (tributyltin-mu-(4-oxo-4H-pyran-2,6-dicarboxylato-O(2)-O(6)))); C413870:poly(methyl(phenyl)ammoinium (tributyltin-mu-(pyridine-2,6-dicarboxylato-O(2)-O(6))))