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Crystal Structure And Thermal Studies Of Copper(II) And Nickel(II) Complexes Of 2-hydroxyacetophenoimine As Vapour Precursors

V. Jeseentharani, J. Selvakumar, Babu Varghese, A. Dayalan, K. S. Nagaraja

Volume 4, Issue 8, Page 643-649, Year 2013, Current Issue | DOI: 10.5185/amlett.2012.11462

Keywords: Schiff’s base complexes; single crystal; volatility; vapour pressure; CVD precursors.

Abstract: 

Schiff’s base complexes bis(2-hydroxyacetophenoimine)nickel(II) [Ni(ohapim)2] and bis(2-hydroxyacetophenoimine)copper(II) [Cu(ohapim)2] were synthesized and studied for their idealist novel vapour source for chemical vapour deposition (CVD) application. Molecular structure was determined using single crystal X-ray diffraction, FT-IR, and elemental (C, H, N, and O) studies. Upon screening these complexes by dynamic thermogravimetric (TG) analyses, [Ni(ohapim)2] was found to be completely volatile and suitable for Ni/NiO CVD application. The temperature-dependent vapour pressure of [Ni(ohapim)2] was measured by using a transpiration apparatus and gave a value of 77.4 ± 0.8 kJ/mol for the enthalpy of sublimation (DH°sub) in the temperature range 527.86–584.22 K. Copyright © 2013 VBRI press.

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