Journal of thermal analysis

, Volume 30, Issue 2, pp 447–455 | Cite as

Thermal Investigation of 1,2-propanediamine complexes of nickel(II) in the solid phase

  • A. Ghosh
  • G. De
  • N. Ray Chaudhuri


Thermal studies have been carried out on [NiL3]X2·n H2O, whereL=1,2-propanediamine;X=Cl, Br, SCN, 1/2SO 4 2− and 1/2 SeO 4 2− ; andn= 2, 1.5 and 0. [Ni2L5(NCS)2](SCN)2 and [NiL2SO4] have been synthesized pyrolytically in the solid-state from their mother diamine complexes. The deaquation behaviour of [NiL3]SO4·2 H2O appears interesting, and its monohydrate undergoes a solid-state reaction (88–102°) without mass loss, showing an exothermic peak at 95 °C (ΔH=− 5.1 kJ mole−1).


Polymer Physical Chemistry Nickel Inorganic Chemistry Mass Loss 
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Thermische Untersuchungen wurden an [NiL3]X2,n H2O ausgeführt, wobeiL-1,2-Propandiamin;X=Cl, Br, SCN, 1/2 SO 4 2− und 1/2 SeO 4 2− ;n=2, 1.5 und 0. [Ni2Ls(NCS)2](SCN)2 und [NiL2SO4] wurden ausgehend von den entsprechenden Diaminkomplexen pyrolytisch im festen Zustand synthetisiert. Das Dehydratisierungsverhalten von [NiL3]SO4·2 H2O scheint interessant zu sein, und beim entsprechenden Monohydrat wird eine ohne Massenverlust verlaufende Festkörperreaktion (88–102°) beobachtet, die sich durch einen exothermen Peak bei 95 °C (ΔH=− 5.1 kJ mol−1) zu erkennen gibt.


Проведено термическ ое исследование комплексов типа [N3L32· nН2O, где L=1,2-пропандиамин,Х=Сl, Br, SCN, 1/2 SO 4 2- , 1/2SeO 4 2- , an=2, 1.5 и 0. Комплексы типа [Ni2L5(NCS)2](SCN)2 и [NiL2SO4] были получены в твердом состоянии путем пиролиза соотв етствующих диаминов ых комплексов. Дегидрат ация комплекса [N3L3]SО4·2 Н2О протекает с п отерей одной молекул ы воды, а образующийся моног идрат затем в области темпе ратур 88–102° подвергает ся твердотельной реакц ии без потери веса, показывая при эт ом экзотермический п ик при 95 °С ΔН=− 5.1 кдж·моль−1.


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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1985

Authors and Affiliations

  • A. Ghosh
    • 1
  • G. De
    • 1
  • N. Ray Chaudhuri
    • 1
  1. 1.Inorganic Chemistry DepartmentIndian Association for the Cultivation of ScienceCalcuttaIndia

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