Preparation, characterisation and thermal behaviour of N-(3-aminopropyl)-1,3-propanediamine complexes of nickel (II) in the solid state

Pariya, Chandi ; Ghosh, Ashutosh ; Chaudhuri, Nirmalendu Ray (1995) Preparation, characterisation and thermal behaviour of N-(3-aminopropyl)-1,3-propanediamine complexes of nickel (II) in the solid state Thermochimica Acta, 249 . pp. 199-210. ISSN 0040-6031

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0040-6031(95)90694-0

Abstract

The complexes [Ni(dpt)2]X2 • nH2O (where dpt is N-(3-aminopropyl)-1,3-propanediamine; n = 0 when X is I, NCS or ClO4; n = 1 when X is Cl, Br or NO3; n ≫ 1 when X is 0.5SO4 and 0.5SeO4), Ni(dpt)X2 • nH2O (n = 0 when X is Cl or NO3; n = 1 when X is Br or I; n = 2 when X is NO3; n = 3 when X is 0.5SO4 or 0.5SeO4), [Ni(aepn) 2)]I2, Ni(aepn)I2 (where aepn is N-(2-aminoethyl)-1,3-propanediamine, [Ni(dien) 2]I2 and Ni(-dien)I2 (where dien is diethylenetriamine) have been synthesised from the solution and thermal investigations upon them have been carried out in the solid state. [Ni(dpt) 2]X2 (X is Br or NO3) undergoes endothermic reversible phase transitions upon heating (198–212°C, ΔH = 3.5 kJ mol−1 and 205–222°C for [Ni(dpt) 2]Br2 and [Ni(dpt) 2](NO3)2 respectively). Ni(dpt)I2 shows exothermic irreversible phase transition during heating (193–220°C; ΔH = 4.1 kJ mol−1). The thermal stabilities of dpt complexes are compared with those of the corresponding aepn and dien complexes.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:DTA; Nickel Compound; Phase Transition; Stability; TG; XRD
ID Code:108448
Deposited On:13 Oct 2017 13:03
Last Modified:13 Oct 2017 13:03

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