Thermal reactions of Lead(IV) chloride complexes in the solid state. Part I. Thermolysis of hexachloroplumbates and molecular complexes of PbCl4 with pyridine, quinoline and isoquinoline

Błażejowski, Jerzy; Szychlinski, J.

doi:10.1016/0040-6031(80)87195-4

Cited by 19 publications

(3 citation statements)

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“…This would correspond to the release of one molecule of C12. The DTA and DTG peak temperatures-for this effect are typical for the thermal decomposition of hexachloroplumbates [24,9]. Isothermal experiments revealed that ca.…”

Section: Resultsmentioning

confidence: 99%

“…Thermal decomposition ofhexachloroplumbic acid derivatives is always accompanied by a liberation of chlorine, this process being a consequence of the spontaneous transition Pb(4 +) ~Pb(2 +) [10]. The chlorine released may initiate various secondary processes, which means that hexachloroptumbates usually exhibit a complex thermal decomposition pattern [3,4,9].…”

Section: Resultsmentioning

confidence: 99%

“…Thermal analyses were performed on an OD-103 derivatograph. Isothermal decompositions with subsequent quantitative analyses of the reaction products were carried out by the procedure described previously [9].…”

Section: John Wiley and Sons Limited Chichestermentioning

confidence: 99%

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Thermal decompositions of [Co(py)4Cl2]2PbCl6 and [Ru(dipy)3]PbCl6

Szychlinski

Łubkowski

Błażejowski

et al. 1987

Journal of Thermal Analysis

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The thermal decompositions of [Co(py)4Clz]2PbCl 6 and [Ru(dipy)3]PbCl 6 were examined by dynamic thermoanalytical methods and under isothermal conditions permitting quantitative determination of some of the reaction products. A comparative study of the corresponding chloride salts was also performed. Both groups of compounds decompose with the liberation of chlorine and organic ligands (and H~O in the case of the hydrates of the chlorides), and the process is accompanied by the simultaneous transitions Pb(4+)---,Pb(2+) and Co(3+) --,Co(2 + ). The ruthenium complex salts initially decompose without a change in the oxidation state of the Ru atom, but upon thermal treatment of the hexachloroplumbate certain chlorination products of the organic ligands are formed.Hexachloroplumbic acid (H2PbC16) forms a large group of salt-like derivatives with numerous nitrogen-containing organic bases [1]. Among the hexachloroplumbates of metals, only the existence of the salts of potassium, rubidium and caesium has so far been proved. Several compounds of H2PbC16 with monoand divalent complex cations are also known [1]. Investigations of the thermal properties and thermochemistry of hexachloroplumbic acid derivatives were conducted earlier in this laboratory on the hexachloroplumbates of alkali metals [2] and numerous nitrogen-containing bases [3,4]. The present communication reports the results of an analogous study of two hexachloroplumbates of complex cations [Co(py),C12)2]PbCl 6 and the newly synthesized [Ru(dipy)a]PbC16, as well as the corresponding chloride salts.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%