ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
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)