Zobrazeno 1 - 10
of 53
pro vyhledávání: '"E. M. Nour"'
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 76:343-348
Complexes of adenine, AdH, with cobalt, nickel and copper chlorides were prepared and their thermodynamic functions were determined. The complexing processes are endothermic in nature. The thermal behaviour of complexes was followed up by using TG an
Publikováno v:
International Journal of Quantum Chemistry. 76:10-22
Van der Waals interaction potentials of the square planar D{sub 4h} and regular tetrahedral T{sub d} configurations of He{sub 4} were examined at the matrix Hartree-Fock, many-body perturbation theory, coupled-cluster theory, and configuration intera
Publikováno v:
Spectroscopy Letters. 32:115-124
The interaction of the cyclic base 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (TODACOD) with different π-electron acceptors have been studied spectrophotometrically in CHCl3. These π-electron acceptors are 1-chloro-2,4,6-trinitrobenzene (picryl c
Publikováno v:
International Journal of Modern Physics C. :1041-1054
An empirical scheme for implementation of bond functions in heteronuclear diatomics is suggested and applied to HeBe using universal even-tempered functions. The effects of bond functions and core-correlation energy on the interaction potential of He
Publikováno v:
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 27:505-508
Manganese(II) carbonate, MnCO3.H2O, is obtained by a new synthetic method involving the reaction of aqueous solutions of MnCl2, Mn(NO3)2, MnSO4 or Mn(CH3COO)2 with urea at ∼80°C. The infrared spectrum of the formed product clearly indicates the ab
Publikováno v:
Bulletin of Materials Science. 27:483-485
The metal carbonate, MCO3 (M = Ca, Sr and Ba), was synthesized by a novel method of reacting aqueous solution of each of Ca2+, Sr2+ and Ba2+ salts with urea at high temperature, ∼ 80°C. The reaction products were characterized through elemental an
Autor:
E. M. Nour, A. H. Rady
Publikováno v:
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 21:1153-1156
The isocyanate salt AgNCO was obtained by the new method of reacting aqueous solutions of AgNO3 and urea at ca. 80°C. The formed solid AgNCO was characterized through its elemental analysis and infrared spectrum. A general mechanism describing the f
Publikováno v:
Inorganica Chimica Acta. 141:139-144
The infrared and Raman spectra of [UO2(salen)(H2O)] and [UO2(salen)(CH3OH)] (salen=N,N′-ethylenebis(salicylideneimine) have been recorded. Assignments for the fundamental vibrations are proposed on the basis of C2v symmetry for the former species a
Publikováno v:
Analytical Letters. 18:803-814
The complexation of ferron(7-iodo-8-hydroxy quinoline-5-sulphonic acid) with some metal ions of biological interest, such as Ag(I), Cu(II), Zr(IV), U(VI), Au(III), Ni(II), Zn(II), Mn(II), Fe(II), Fe(III), and Cr(III), has been studied potentiometrica
Autor:
S. Morsy, E. M. Nour
Publikováno v:
Inorganica Chimica Acta. 117:45-48
The resonance Raman spectra of K 2 (Ti(O 2 )(SO 4 ) 2 )·5H 2 O and K 2 (Ti(O 2 )(C 2 O 4 ) 2 )·3H 2 O are recorded. The results are consistent with the triangular structure of the peroxotitanium unit, Ti(O 2 ), with C 2ν symmetry. The ν(OO),