- First synthesis and biological evaluation of indeno[2,1-e]pyrazolo[3,4-b]pyrazin-5-one and related derivatives

Research Authors
Talaat El-Emary and Hussein El-Kashef
Research Department
Department of chemistry
Research Journal
European Journal of Medicinal Chemistry
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
478-485
Research Rank
1
Research Vol
62
Research Year
2013

- Infrared, Raman and NMR spectra, conformational stability,normal coordinate analysis and B3LYP calculations of 5-Amino-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde

Research Authors
Khaled Bahgat and Talaat EL-Emary
Research Department
Department of chemistry
Research Journal
J. of Molecular Structure
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
325–335
Research Rank
1
Research Vol
1034
Research Year
2012

A Facile Method for the Synthesis of (Substituted) hydrazine-4-oxothiazolidines and Substituted imino-5-oxothiadiazines from 1,4-Disubstituted thiosemicarbazides

Research Authors
Alaa A. Hassan, Ashraf A. Aly, Tarek I. M. Bedair, Alan B. Brown and Talaat I. El-Emary
Research Department
Department of chemistry
Research Journal
J. Heterocyclic Chem.
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
44-49
Research Rank
1
Research Vol
vol. 51
Research Year
2014

Synthesis, characterization and thermal studies of new polyhydrazides and its poly-1,3,4-oxadiazoles based on dihydro-9,10-ethanoanthracene in the main chain. K. I

Research Authors
Aly, A. A. Sarhan, T.I. El-Emary
Research Department
Department of chemistry
Research Journal
Arabian Journal of Chemistry
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
61–68
Research Rank
1
Research Vol
3
Research Year
2010

New Tandem Cyclo-and/or Addition Reactions between N-Arylisoindolines with Benzyne and Dimethyl Acetylenedicarboxylate

Research Authors
Ashraf A. Aly,, Alaa A. Hassan, Kamal M. El-Shaieb, and Talaat I. El-Emary
Research Department
Department of chemistry
Research Journal
J. Heterocyclic Chem.
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
1079-1083
Research Rank
1
Research Vol
49
Research Year
2010

Theoretical and experimental investigations on the structure and vibrational spectra of 6-amino-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid and 6,7-dihydro-3-methyl-6-oxo-1-phenyl-1H-pyrazolo[3,4-b]pyridine-carbonitrile

Research Authors
Khaled Bahgat, Nazm Al-Den Jasem and Talaat El-Emary
Research Department
Department of chemistry
Research Journal
J. Serb. Chem. Soc.
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
555-571
Research Rank
1
Research Vol
74(5)
Research Year
2009

Synthesis and Antibacterial Activity of some new Pyrazoles incorporated with Imidazole, Pyrrole and Other Cyclic and Heterocyclic Moieties

Research Authors
Talaat I. El-Emary, Abu-Bakr A. A. M. El-Adasy, and Mohamed A. M. Gad-Elkareem
Research Department
Department of chemistry
Research Journal
. AL-Azhar Bull.Sci.
Research Member
Talaat Ibrahim Ali El-Emary
Research Pages
93-104
Research Rank
2
Research Vol
Vol.2(Dec)
Research Year
2006

Structural and calorimetric studies of two crystallization stages of Ag10As30S60 glassy alloys

Research Abstract

The structure of the as-prepared and thermal annealed Ag10As30S60 chalcogenide glass is characterized
using the X-ray diffraction (XRD) and scanning electron microscopy (SEM). Differential scanning
calorimetry (DSC) curves recorded at four different heating rates are analyzed to determine the glass
and crystallization transition temperatures, thermal stability and enthalpy release. Two separated
crystallization peaks are observed in the DSC curves. XRD results indicate the precipitation of AgAsS4
crystal phase is responsible for the first peak. Numerous phases with S8 dominant phase are accountable
for the second peak. The crystallization kinetics such as the activation energy for the crystallization (Ec),
the frequency factor (Ko) and the crystallization rate constant K are determined for each crystallization
stage. The results show that the crystallization rate constant for the first crystallization stage is about six
times larger than that of the second crystallization step.

Research Authors
M.I. Abd-Elrahman , Rasha M. Khafagy , Noha Younis , M.M. Hafiz
Research Department
Department of physics
Research Journal
Physica B
Research Member
Mohamed Mahmoud Hafiz Mohamed
Research Pages
PP.155–159
Research Rank
1
Research Vol
vol.449
Research Year
2014
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