Dimethyl sulfide for 3-carboaldehyde pyridine displacement in a platinum(II) Complex: Donor Number Effect
Publish place: Iranian Chemical Communication، Vol: 4، Issue: 2
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
View: 426
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_ICC-4-2_008
تاریخ نمایه سازی: 1 مرداد 1397
Abstract:
The thermodynamic parameters and equilibrium constant for displacement of dimethy sulfide by3-carboaldehyde pyridine as N-donor ligandin cis-[Pt(4-MeC6H4)2(SMe2)2] complex have beenmeasured using UV-vis spectroscopy in acetone, dichloromethane and benzene at varioustemperatures (T=15-20 °C), and compared with my previously reported reactions. ΔHo (KJ.mol-1) of the mentioned reaction in acetone has been 7.158 while obtained less in dichloromethane(4.109 ) and more in benzene(9.96). The entropy of the reaction has been obtained 86.86 J.mol-1.K-1 in acetone, while calculated less in CH2Cl2 (73.29 J.mol-1.K-1) and more in the last solvent(97.40 J.mol-1.K-1). Furthermore, the Gibbs energy, ΔG (J.mol-1), of the reaction obtained-18738.79, -17741.55 and -19043.06 respectively, with the same order. In all three solvents, thevalues of enthalpy and entropy changes have been positive and decreased as the donor number ofthe solvents decreased.
Keywords:
Authors
Alireza Akbari
Chemistry Department, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran