Decomposition of Complex of Estertin with Schiff Base and Characterization of Crystal Structure of Products

Abstract

Abstract: Complex MeO₂CCH₂CH₂SnCl₄^-·H⁺(4) and MeO₂CCH₂CH₂SnCl₂·(2-OC₆H₄-CH＝NC₆H₅)(5) were obtained by decomposing the yellow reaction solution of MeO₂CCH₂CH₂SnCl₃· (2-HOC₆H₄CH＝NC₆H₅) (3), which is the product of β-methoxycarbonylethyltin trichlorides(1) with Schiff base (2-HOC₆H₄CH＝NC₆H₅)(2), after standing for 15 d. Complexes 4 & 5 were characterized by elemental analysis, IR　and NMR. The crystal structure of complex 4 was determined by X-ray diffraction analysis. The crystal belongs to orthorhombic system, space group P2cn, a =0.7852(2) nm, b = 1.2236(10) nm , c =1.6952(4) nm, α= β =γ =90°, V = 1.6287 nm³, Z =4, D_c =1.79 g/cm³, F (000) = 860, μ =22.2 cm^-1 , R=0.0449, wR =0.0382 . Complex 4 exists as a discrete molecule, and the tin atom attains a distorted octahedral geometry via the coordination of intramolecular carbonyl oxygen and chloride ion. The coordination number of tin atom is 6. In complex 5, one chloride ion is replaced by the phenolic oxygen anion. Coordination of carbonyl oxygen atom to tin atom still exists, The coordination number of tin atom is 5.

Key words: Estertin, Schiff base, Complexes, Decompose, Crystal structure

CLC Number:

O621.256.4

TrendMD:

LI Zhong-Fang, WANG Su-Wen, WANG Yu-Xin, FU Fang-Xin. Decomposition of Complex of Estertin with Schiff Base and Characterization of Crystal Structure of Products[J]. Chem. J. Chinese Universities, 2002, 23(2): 238.

References

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