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Thermal decomposition of complexes of cadmium(II) and mercury(II) with triphenylphosphanes

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Abstract

A series of substituted triphenylphosphane complexes of the type CdL2X2 (L= triorthotolylphosphane or trimetatolylphosphane; X=Cl−, Br− or I−) and HgL2X2 (L=triphenylphosphane or triorthotolylphosphane) was prepared fresh. The thermal decomposition was carried out in air with heating rate programmed at 10°C min−1 and it revealed that the complexes with ortho derivative were less stable and the triphenylphosphane moiety leaves along with halogen in the first step. All the complexes were stable up to 210°C. However, the stability order of the tetrahedral complexes was X=Cl>Br. Values of n, E, lnA and ΔS # have been approximated and compared. Complexes having Br have higher E a, lnA and ΔS # values than that having Cl.

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Authors and Affiliations

  1. University Department of Chemistry, Magadh University, Bodh Gaya, 824234, India

    R. K. Verma, L. Verma, A. Bhushan & B. P. Verma

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  1. R. K. Verma
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  2. L. Verma
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Verma, R.K., Verma, L., Bhushan, A. et al. Thermal decomposition of complexes of cadmium(II) and mercury(II) with triphenylphosphanes. J Therm Anal Calorim 90, 725–729 (2007). https://doi.org/10.1007/s10973-007-8529-2

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