Thermal studies of 2-aminoethanol complexes of nickel (II) in the solid state

Das, Debasis ; Ghosh, Ashutosh ; Koner, Subratanath ; Chaudhuri, Nirmalendu Ray (1996) Thermal studies of 2-aminoethanol complexes of nickel (II) in the solid state Thermochimica Acta, 285 (1). pp. 99-107. ISSN 0040-6031

Full text not available from this repository.

Official URL:

Related URL:


[NiL3]X2 (where L = 2-aminoethanol and X is Cl, Br, I, NO3, 0.5SO42− or 0.5SeO42− and [NiL2X2] (X is Cl, Br or SCN) have been synthesised from solution and their thermal study has been carried out in the solid phase. [NiL3]I2 and [NiL3]SeO4 undergo reversible endothermic phase transitions upon heating (63–93°C and 94–113°C, respectively, for heating and 94-65°C and 110–190°C, respectively, for cooling), whereas [NiL3](NO3)2 exhibits two successive reversible endothermic phase transitions (10–38°C and 50–62°C for heating and 56-48°C and 19–(−8)°C for cooling). On the other hand, [NiL3]SO4 undergoes irreversible endothermic phase transition (99–112°C) in the solid state. All these transformations are assumed to be associated with the conformational changes of 2-aminoethanol chelate rings. [NiL2(NCS)2] melts at ≈ 168°C and remains supercooled for a few days at ambient temperature. The initial temperatures of decomposition (Ti) of these complexes have been compared with those of the corresponding ethane-1, 2-diamine complexes of nickel (II).

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:DTA; Nickel Compounds; Phase Transition; Stability; TG
ID Code:108441
Deposited On:13 Oct 2017 13:03
Last Modified:13 Oct 2017 13:03

Repository Staff Only: item control page