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Title: Synthesis and characterization of di(<i>p</i>-fluorobenzyl)tin bis(heteroaromatic carboxylate) and crystal structure of di(<i>p</i>-fluorobenzyl)tin bis(3-pyridinecarboxylate)
Authors: Yin, Han Dong
Wang, Qi Bao
Xue, Sheng Cai
Keywords: <i>p</i><b>-</b>fluorobenzyltin
heteroaromatic acid
crystal structure
Issue Date: Dec-2005
Publisher: CSIR
Series/Report no.: <b>Int.Cl.<sup>7</sup> C 07 D</b>
Abstract: Reaction of di(<i>p</i>-fluorobenzyl)tin oxide with heteroaromatic carboxylic acid in 1:2 stoichiometry yields compounds of the type (4-<i>F</i>-Bz)<sub>2</sub>Sn(OOCR)<sub>2</sub> [R=3-pyridinyl (<b>1</b>), 4-pyridinyl (<b>2</b>), 2-pyridinyl (<b>3</b>), 2-indolyl (<b>4</b>), 2-furanyl (<b>5</b>), 2-thiophenyl (<b>6</b>), 3-indolyl (<b>7</b>), 3-indolmethyl (<b>8</b>)]. These compounds have been characterized by elemental analysis, IR, <sup>1</sup>H and <sup>119</sup>Sn NMR spectra. The crystal and molecular structure of compound <b>1</b> has been determined by X-ray single crystal diffraction. The results show that the crystal of compound belongs to a monoclinic system with space group <i>P</i>2(1)/<i>c</i> and unit cell dimensions: <i style="">a</i>=17.634(12) Å, <i style="">b</i>=12.776(9) Å, <i>c</i>=13.606(9) Å,<i>β</i>=96.991(11)<sup>o</sup>, <i>Z</i>=4, <i>V</i>=3043(4) Å<sup>3</sup>, <i>D</i><sub>c</sub>=1.269 Mg/m<sup>3</sup>, <i style="">μ</i>=0.904 mm<sup>-1</sup>, <i>F</i>(000)=1456, <i>R</i><sub>1</sub>=0.0405, <i>wR</i><sub>2</sub>=0.0682. In compound <b>1</b>, the tin atom is seven-coordinate in a distorted pentagonal bipyramidal geometry by bridging the pyridine N atom, resulting the one-dimensional infinite chain organotin compound.<i></i>
Description: 2550-2554
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.44B(12) December 2005]

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