Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Di- and Triorganotin(IV) Complexes of Sulfur-containing Ylidenemalonates

  • Jung, Ok-Sang (Inorganic Chemistry Laboratory, Korea Institute of Scinece & Technology) ;
  • Lee, Young-A (Inorganic Chemistry Laboratory, Korea Institute of Scinece & Technology) ;
  • Hong, Jong-Ki (Advanced Analysis Center, Korea Institute of Science & Technology) ;
  • Jeong, Jong-Hwa (Department of Chemistry, Kyungpook National Uiversity) ;
  • Sohn, Youn-Soo (Inorganic Chemistry Laboratory, Korea Institute of Scinece & Technology)
  • Published : 1993.12.20
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Abstract

Organotin(IV) complexes of ylidenemalonates $(R_xSn)_{x-1}(O_2C)_2C=C(SR')_2\;(R=n-C_4H_9,\;C_6H_5,\;cyclo-C_6H_{11},\;CH_3OOCCH_2CH_2;\;x=2,3;\;R'=CH_3,\;R_2'=-CHCH-,\;-CH_2CH_{2^-})$ have been synthesized and characterized by means of various spectroscopic methods. The X-ray crystal structure of $(Ph_3Sn)_2(O_2C)_2C=C(SCH_3)_2$ has been determined (Pi; a= 9.704(2) ${\AA}$, b= 14.412(1) ${\AA}$, c= 14.760(3) ${\AA}$, ${alpha}$=74.26(1)$^{\circ}$, ${beta}$=99.38(l)$^{\circ}$, ${\gamma}$=79.09(1)$^{\circ}$, $V= 1950.7(7){\AA}^3$) and refined to R= 0.045. The crystal structure discloses a discrete molecule with bidentate-like carboxylate ligand. For diorganotin analogues, the structures are discussed in terms of IR, $^1H-NMR,\;^{13}C-NMR$, and FAB mass spectrometry. The mass spectrum indicates that the diorganotin complexes of ylidenemalonates are dimeric.

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References

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