1. Syntheses and crystal structures of polymeric ionic triorganotin esters of 3,5-pyridinedicarboxylic acid and 5-nitroisophthalic acid.
- Author
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Ma, Chunlin, Li, Jikun, and Zhang, Rufen
- Subjects
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ORGANOTIN compounds , *CARBOXYLIC acids , *METAL complexes , *HYDROGEN bonding , *X-ray crystallography , *MOLECULAR structure , *ORGANIC synthesis - Abstract
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]
- Published
- 2006
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