Crystal, molecular, and electronic structure of Trans-bis[ethanone, 1-(2-hydroxyphenyl)-oximato]Nickel(II)
摘要:
AbstractThe compound [Ni(apox)2], (where apox – denotes the anion of 2‐hydroxyacetophenoneoxime, C8H8NO2−), was prepared and studied by means of spectroscopic (IR, 1H NMR, UV‐Vis) measurements and theoretical calculations employing the Hückel method. The structure was determined by X‐ray diffraction studies. The unit cell is monoclinic (space group P21/c) with dimensions a = 7.845(1), b = 9.911(2), c = 19.371(2) Å, β = 94.37(1)° and contains four formula units. Hückel investigations in comparison with the electronic excitation spectrum revealed that the two bands at 2.73 and 2.62 μm−1 can be characterised as MLCT, the band at 1.62 μm−1 as d–d transition, while the band at 2.14 cm−1 has a mixed character of both MLCT and d–d transition.
Thermal behaviour and kinetic analysis of the thermogravimetric data of some copper(II), nickel(II), and palladium(II) 2-hydroxyaryloximates
作者:M. Lalia-Kantouri、M. Hartophylles
DOI:10.1016/0040-6031(93)80170-f
日期:1993.9
The thermal stability and mode of decomposition of eleven 2-hydroxyaryloxime chelates with the transition metals Cu(II), Ni(II), and Pd(II) have been studied in air atmosphere using the TG/DTA technique. In the case of copper chelates, their thermal behaviour was also studied in nitrogen atmosphere by TG/DTG.A kinetic analysis of the TG data was performed using the Coats-Redfern method to determine the apparent activation energies and the pre-exponential factor of the Arrhenius equation. Mass spectrometry was also used and possible fragmentation patterns are given and discussed.
Surendra Babu; Krishna; Hussain Reddy, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2008, vol. 47, # 11, p. 1661 - 1665
作者:Surendra Babu、Krishna、Hussain Reddy、Philip
DOI:——
日期:——
Chandra, Ramesh; Singh, Rana R.; Singh, Raman M., Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1992, vol. 22, p. 311 - 320