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Heterogeneous reactions of solid nickel (II) complexes. VII. Thermal decomposition of two isomers of dithiocyanatobis(quinoline) nickel(II) dihydrate

E. Jóna, T. Šramko, and J. Gažo

Lehrstuhl für Anorganische Chemie der Slowakischen Technischen Hochschule, 880 37 Bratislava


Abstract:  Studied was the thermal decomposition of two hydrate isomers of [Ni(NCS)2(H20)2Q2] (I) and [Ni(NCS)2Q2 • 2H20] (II) (Q = quinoline). The results show that the energy necessary for the separation of two moles H2 0 and reorganization of the crystal lattice is for I essentially lower (_1H = 6.3 kcal mol-1) than for II ( ΔНII= 19.7 kcal mol-1). Besides it has been found that the decomposition of 7 takes place in two steps ( —2H20; — 2Q), while that of II is a three step process ( —2H20; — (0.62 to 1 Q); —(1.38 to 1 Q)). The reasons for variations in the loss of weight for II are discussed.

Full paper in Portable Document Format: 275a588.pdf (in German)


Chemical Papers 27 (5) 588–593 (1973)

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