Journal ArticleDOI
Heterogeneous reactions of solid nickel(II) complexes, IV: Thermal decomposition of compounds of the type Ni(NCS)2L2 Part B: Thermochemical properties
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In this article, the decomposition heat (ΔH) of pseudooctahedral and square-planar complexes of the type Ni(NCS)2L2 were studied by means of a differential scanning calorimeter.Abstract:
The decomposition heats (ΔH) for complexes of the type Ni(NCS)2L2 were studied by means of a differential scanning calorimeter. From the decreasing values ofΔH the following order has been established:a) for pseudooctahedral complexes: py >β-pic > > Q; andb) for square-planar complexes: 2,6-lut > Q >α-pic. The results obtained are compared with the data from the TG, DTG, and DTA curves.RésuméDétermination par analyse enthalpique différentielle des chaleurs de décomposition (ΔH) des complexes de formule générale Ni(SCN)2L2. Le classement des valeurs deΔH par ordre décroissant montre que pour les complexes pseudo-octaédriques py >gb-pic > Q et que pour les complexes plans carrés lut-2,6 > Q >α-pic. Comparaison de ces résultats avec les données des courbes TG, TGD et ATD.ZusammenfassungEs erfolgte die Bestimmung der Zersetzungswärmen (ΔH) der Komplexe vom Typ Ni(NCS)2L2 durch die Differential Scanning Calorimetrie. Mit abnehmendenΔH Werten ergab sich die Reihenfolge:a) Pseudooktaedrische Komplexe: Py >ß-Pic > Q;b) Quadratische Komplexe: 2,6-Lut. > Q >α-Pic. Ergebnisse mit aus den DTA, TG und DTG-Kurven gewonnenen Resultaten wurden verglichen.РезюмеС помощью сканирующе го калориметра изуче на теплота распада (ΔH) дл я комплексов типа Ni(NCS)2L2. В р яду уменьшающих вели чинΔH найден следующий пор ядок: а) для псевдооктаэдри ческих комплексов ру >β-pic > Q; и б) для планарных комплексов 2,6 lut > Q >α-Pic. Полу ченные результаты сравнены с данными, по лученными исходя из кривых ТГ, ДТ Г и ДТА.read more
Citations
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Journal ArticleDOI
Heterogeneous reactions of solid nickel(II) complexes, III
E. Jóna,T. Šramko,J. Gažo +2 more
TL;DR: In this article, the stochastic properties of the thermal decomposition of Ni(pyNO)Cl2H2O (I, III, IV, VIII) and Ni(4-MepyNO)2Cl2(V, VI, VII) were studied.
Journal ArticleDOI
Thermal decomposition of metal complexes IV. Lanthanide(III) complexes with dibenzo-18-crown-6
TL;DR: In this article, the solid-state thermal dissociation reactions of the complexes of all the lanthanide(III) nitrates and thiocyanates (except Pm) with the cyclic polyether dibenzo-18-crown-6 were investigated.
Journal ArticleDOI
Thermal properties of solid nickel(II) coordination compounds: Part A: The stoichiometry of thermal decomposition
E. Jóna,T. Šramko,J. Gažo +2 more
Journal ArticleDOI
Thermal properties of solid nickel(II) coordination compounds
TL;DR: In this paper, the chemical and physical factors influencing the thermal octahedral ↔ square planar changes of nickel(II) complexes in the solid phase are discussed. But their focus is on the octanhedral and square planat Ni(II)-complexes, which can be isolated in a solid state before and after heating.
Journal ArticleDOI
Coordination Chemistry of the Cyanate, Thiocyanate, and Selenocyanate Ions
TL;DR: In this paper, the general formula NCX - (X = 0, S, Se, or Te) was used to describe the chalcogenocyanates and they can form a coordinate bond to a Lewis acid through either N or X.
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