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Preparation, thermal and vibrational studies of {[}UO2(acac-o-phdn)(L)] (L=H2O, py, DMF and Et3N)
Faculty
Science
Year:
2005
Type of Publication:
Article
Pages:
1077-1085
Authors:
SADEEK, SA, TELEB, SM, Refat, MS, Elmosallamy, MAF
DOI:
10.1080/0095897050012279
Journal:
JOURNAL OF COORDINATION CHEMISTRY TAYLOR \& FRANCIS LTD
Volume:
58
Research Area:
Chemistry
ISSN
ISI:000230899100009
Keywords :
dioxouranium(VI) complexes, infrared spectra, DTA, TG, Schiff base
Abstract:
Four new dioxouranium(VI) complexes, {[}UO2(acac-o-phdn)(L)] where L = H2O, py, DMF and Et3N, with the tetradentate dibasic Schiff base (acac-o-phdn), derived from condensation of acetylacetone with o-phenylene diamine have been synthesized. The infrared spectra were obtained and full assignments of all the observed vibrations are proposed on the basis of C-2v symmetry for H2O and py complexes and C-s for the other two complexes, respectively. The bond stretching force constant and bond length of the U = O bond for the four complexes were calculated. Differential thermal analysis (DTA) and thermogravimetric (TG) analysis of the complexes were also carried out.
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