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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 14, Number 6
BKCSDE 14(6)
June 20, 1993 

Di- and Triorganotin(Ⅳ) Complexes of Sulfur-containing Ylidenemalonates
Ok-Sang Jung*, Young-A Lee, Jongki Hong, Jong Hwa Jeong, Youn Soo Sohn*
Organotin(Ⅳ) complexes of ylidenemalonates (RxSn)x-1(O2C)2C=C(SR')2 (R = n-C4H9, C6H5, cyclo-C6H11, CH3OOCCH2CH2; x= 2,3; R'= CH3, R2'=-CHCH-,-CH2CH2-) have been synthesized and characterized by means of various spectroscopic methods. The X-ray crystal structure of (Ph3Sn)2(O2C)2C=C(SCH3)2 has been determined (Pi; a= 9.704(2) Å, b= 14.412(1) Å, c= 14.760(3) Å, α=74.26(1)°, β=99.38(l)°, γ=79.09(1)°, V= 1950.7(7) Å3) 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, 13C-NMR, and FAB mass spectrometry. The mass spectrum indicates that the diorganotin complexes of ylidenemalonates are dimeric.
722 - 726
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