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Synthesis and characterization of di- and triorganotin(IV) complexes of 2-tert-butyl-4-methyl phenol

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Abstract

The di- and trialkyltin(IV) complexes of composition R2SnCl2−x (OAr), and n-Bu3Sn(OAr) (R = n-Bu and Me; x = 1 and 2; OAr = OC6H3But-2-Me-4) have been synthesized by the reactions of di-n-butyl and dimethyltin dichlorides and tri-n-butyltin(IV) chloride with 2-tert-butyl-4-methylphenol and triethylamine in tetrahydrofuran. The reaction of triphenyltin chloride with trimethylsilyl-2-t-butyl-4-methylphenoxide in the same solvent however, gives a complex of composition Ph3Sn(OAr). The complexes have been characterized by microanalyses, molar conductance measurements, molecular weight determinations and IR and 1H, 13C and 119Sn NMR and mass spectral studies. Thermal behaviour of the complexes has been studied by TGA and DTA techniques. From the non-isothermal TG data, the kinetic and thermodynamic parameters have been calculated employing Coats-Redfern equation and the mechanism of decomposition has been computed using non-isothermal kinetic method. Thermal investigations on the blends of poly(methylmethacrylate). PMMA, with organotin(IV)-2-tert-butyl-4-methylphenoxides have shown increased thermal stability compared to pure PMMA suggesting thereby their potential as additives towards PMMA.

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Authors and Affiliations

  1. Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, 171 005, India

    Neeraj Sharma, Archana Maridula Thakur, S. S. Bhatt & S. C. Chaudhry

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  1. Neeraj Sharma
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  2. Archana Maridula Thakur
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  3. S. S. Bhatt
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  4. S. C. Chaudhry
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Correspondence to Neeraj Sharma.

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Sharma, N., Thakur, A.M., Bhatt, S.S. et al. Synthesis and characterization of di- and triorganotin(IV) complexes of 2-tert-butyl-4-methyl phenol. J Chem Sci 119, 311–318 (2007). https://doi.org/10.1007/s12039-007-0042-4

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  • DOI: https://doi.org/10.1007/s12039-007-0042-4

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