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 |
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Authors: | Seik Weng Ng S Shanmuga Sundara Raj Hoong‐Kun Fun Ibrahim Abdul Razak James M Hook |
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Abstract: | catena‐Polydicyclohexylammonium tributyltin‐μ‐(4‐oxo‐4H‐pyran‐2,6‐dicarboxylato‐O2:O6)]], (C12H24N)Sn(C7H2O6)(C4H9)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‐polymethyl(phenyl)ammonium tributyltin‐μ‐(pyridine‐2,6‐dicarboxylato‐O2:O6)]], (C7H10N)Sn(C7H3NO4)(C4H9)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. |
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