Thermogravimetric study of ionic Pt(II) complexes containing bis(diphenylthiophosphinyl)methane
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Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
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Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The TG-DTG and DTA study of dipositive platinum(II) complexes of the general formula [Pt(L-L)(dppmS2)](ClO4)2, where dppmS2 = Ph2P(S)CH2P(S)Ph2 and L-L = dppm (Ph2PCH2PPh2), dppe (Ph 2PCH2CH2PPh2), and dppp (Ph 2PCH2CH2CH2PPh2), were studied by thermogravimetric analysis from ambient temperature to 1000°C in nitrogen atmosphere. The decomposition occurred in one stage for [Pt(L-L)dppmS2](ClO4)2, [Pt(L-L)dpppS 2](ClO4)2 and [Pt(L-L)dppmS2] (ClO4)2 complexes. The values of activation energy, E, frequency factor, A, reaction order, n, entropy change, ?S?, enthalpy change, ?H?, and Gibss free energy change, ?G?, of the thermal decomposition were calculated by means of Coats-Redfern method (CR), MacCallum-Tanner method (MC) and van Krevelen method (vK). The activation energy values obtained by CR, MC and vK methods were in good agreement with each other.
Açıklama
Anahtar Kelimeler
Activation energy; Ionic Pt(II) complexes; Thermal behaviour
Kaynak
Polish Journal of Chemistry
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
83
Sayı
1
