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Synthesis, Characterization and Anti-inflammatory Activity of Some Organotin(IV) Complexes

Rehman W., Rehman S., Muhammad B., Shah S. T., Tauseef I., Guo C. -Y.

Polish Journal of Chemistry

2009

Vol. 83, nr 12

2043-2049

The synthesis and characterization of new coordination compounds of some organotin(IV) chlo rides with fexofenadine are reported; the ligand molecules appear to be bound to the tin atom through carbonyl oxygen atom. The structure of the synthesized compounds has been characterized by elemental analyses, and bonding in these complexes is discussed in terms of their IR, 1H NMR and through Mössbauer studies. The spectroscopic results obtained are in full agreement with the proposed 1:1 stoichiometry. The synthesized complexes have been screened for anti-inflammatory effect. The results obtained showed that triphenyltin(IV) derivatives of fexofenadine exhibited promising anti-inflammatory effect as compared to the other tin(IV) derivatives of the same ligand.

Synthesis and Crystal Structure of Five-Coordinated Triorganotin Complexes with 2,5-Dimercapto-4-phenyl-1,3,4-thiodiazole

Zhang R., Li F., Li K., Ma C.

Polish Journal of Chemistry

2004

Vol. 78 / nr 6

753-760

Reactions between triorganotin chloride and 2,5-dimercapto-4-phenyl-1,3,4- thiodiazole gave complexes R3Sn(S3N2C8H5) (4: R = Ph; 5: R = PhCH2 and 6: R = n-Bu), respectively. All products were characterized by elemental analysis, IR, 1H NMR, 13C NMR, and two of them ((4) and (5)) have been determined by X-ray crystallography. Including the Sn-N interaction, the tin atoms of three complexes all have five-coordinated distorted trigonal bipyramidal geometry. All three complexes have antitumor activity in bioactivity measurements. Crystal data for complex (4): monoclinic, space group P2(1)/c, a = 9.696(2)A,b = 14.773(3) A, c = 17.466(4)A, _ = 92.599(3)_, and Z= 4. Crystal data for complex (5): triclinic, space group P-1, a = 9.744(6) A, b = 16.338(10) A, c =17.957(12) A, _ = 90.000(12)_, _ = 100.735(11)_, _ = 90.000(12)_ and Z = 4.