Spectroscopic studies of some thiosemicarbazide compounds derived from Girard's T and P
作者:M.M. Mostafa
DOI:10.1016/j.saa.2006.02.063
日期:2007.2
in the isolated solid organic compounds have been determined using IR spectra. Also, the main functional groups in the skeleton of these compounds have been characterized using 1H NMR spectra. Moreover, a comparative studies between the three thiosemicarbazide derivatives have been carried out. The role of the existence of ethyl-, allyl-, phenyl-, [(CH3)3N+-] and [C5H5N+-] on the position of the functional
Synthesis of some novel CoII and CoIII complexes by tribochemical reactions using KI with some derivatives of thiosemicarbazide complexes derived from Girard's T and P
作者:S.M. Al-Ashqar、M.M. Mostafa
DOI:10.1016/j.saa.2008.04.003
日期:2008.12
a tetrahedral geometry for all CoII complexes prepared by conventional chemical methods. The diamagnetic nature for three of the five iodide complexes, prepared by tribochemical reactions, suggests the oxidation of CoII to CoIII ion and the existence of low spin-octahedral geometry around the CoIII ion. Finally, the results of the rest of the iodide CoII complexes suggest either tetrahedral and/or high-spin