Thermal study of ruthenium(II) complexes containing pyridine-2,6-diimines

Thermal behaviors of mono-and binuclear Ru(II)-pydim complexes: [PydimCl 2 RuL] (Pydim: pyridine-2,6-diimine; 2: L=NCMe; 3: L=PPh 3 ) and [PydimCl 2 Ru(L-L)RuCl 2 Pydim] (4: L-L=pyrazine; 5: L-L=4,4′-bipyridine) have been studied in nitrogen atmosphere using TG/DTG and DTA techniques. The decomposit...

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2008-03, Vol.91 (3), p.943-949
Hauptverfasser:	Doğan, F., Dayan, O., Yürekli, M., Çetinkaya, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical Chemistry Chemistry Chemistry and Materials Science Coordination compounds Exact sciences and technology Inorganic Chemistry Inorganic chemistry and origins of life Measurement Science and Instrumentation Physical Chemistry Polymer Sciences Preparations and properties
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Zusammenfassung:	Thermal behaviors of mono-and binuclear Ru(II)-pydim complexes: [PydimCl 2 RuL] (Pydim: pyridine-2,6-diimine; 2: L=NCMe; 3: L=PPh 3 ) and [PydimCl 2 Ru(L-L)RuCl 2 Pydim] (4: L-L=pyrazine; 5: L-L=4,4′-bipyridine) have been studied in nitrogen atmosphere using TG/DTG and DTA techniques. The decompositions of complexes occur in stepwise. The values of activation energy, E a , and reaction order, n of the thermal decomposition were calculated by means of several methods such as Coats-Redfern (CR), MacCallum-Tanner (MT), Horowitz-Metzger (HM), van Krevelen (vK), Madhusudanan-Krishnan-Ninan (MKN) and Wanjun-Yuwen-Hen-Cunxin (WYHC) based on the single heating rate. Most appropriate method was determined for each decomposition step according to the least-squares linear regression.
ISSN:	1388-6150 1588-2926 1572-8943
DOI:	10.1007/s10973-007-8512-y