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Volume 1, No. 2, December 2006, Thu Al-Qadah  1427 H

Articles

 

 

Isoxazolinyl Spironucleosides by Nitrile Oxide Cycloadditions to 7-Methylenepyrrolo[1,2-c]pyrimidin-1(5H)-one

The isoxazolinyl spironucleoside, bearing a primary hydroxymethyl group in C-3 position of the isoxazolinyl ring, was prepared from TBDPS substituted 6,7-dihydro-5-hydroxy-3-methoxy-7-methylenepyrrolo[1,2-c]pyrimidin-1(5H)-one.

 

 

Eva Hýrošová, Milan Vrábel, Lubor Fišera,* Christian Hametner

JJC, 2006, 1(2), 85-93

Beta-Imino-meso-Tetraphenylporphyrin Derivatives: Reactivity Towards Ethyl Diazoacetate

The reactivity of β-iminoporphyrin derivatives 1a and 1b towards ethyl diazoacetate was studied. The structural characterization of the resulting compounds is presented and mechanistic considerations for their formation are discussed.

 

Cristina M. A. Alonso, Maria G. P. M. S. Neves, Augusto C. Tomé,

Artur M. S. Silva and José A. S. Cavaleiro*

JJC, 2006, 1(2), 95-107

Synthesis of Mono- and Bis-Triazoles via 1,3-Dipolar Cycloaddition Reactions of Azide Derivatives with Naphtho- and Benzoquinone

The reaction of substituted benzyl azides with 1,4-benzoquinone and 1,4-naphthoquinone under reflux conditions in ethanol furnished the bis- and mono triazolo derivatives respectively

 

Sultan T. Abu-Orabi*, Maysaa Saleh, Lo’ay Al-Momani, Ibrahim Jibril, Yaser Yousef

JJC, 2006, 1(2), 109-120

Synthesis and Characterization of a Heterotetrametallic Fe-Au-Ti-Cu Transition Metal Complex

The synthesis and solid state structure of novel heterotetrametallic [{[Ti](m-s,p-C≡CSi­Me3)2}Cu-bipy-C≡C-AuPh2PFc]PF6 is discussed. The electrochemical behavior of this molecule is presented as well.

 

Rico Packheiser, Bernhard Walfort, Heinrich Lang*

JJC, 2006, 1(2), 121-127

Catalytic Hydrolysis of CFC-12 Over Cr2O3 Catalysts

The hydrolytic destruction of CF2Cl2 over Cr2O3 catalysts was investigated under various reaction conditions such as, H2O and CF2Cl2 partial pressures, and reaction temperature. The effect of preparation method and surface sulfation on catalyst activity and selectivity is also discussed.

 

 

A. Hammoudeh, S. Mahmoud*, J. Humaidi and H. Abdel Wahed

JJC, 2006, 1(2), 129-142

In The Direction of Perfect Design of Self-Assembled Monolayers: Scanning Tunneling Microscopy Study of SAMs Made of Decanethiol on Au(111)

The self-assembled monolayers (SAM's)of decanthiol (C10) on Au(III) using scanning tunneling microscope (STM) at different preparation temperatures showed the formation of highly ordered monolayers in the temperature range (298-333)KO. The rotational ordered domains and depression increase in size with temperature.

 

 

Waleed Azzam and Christof Wöll*

JJC, 2006, 1(2), 143-154

Miscibility, Crystallinity and Morphology of Polymer Blends of
Polyamide-6/ Poly (
b-hydroxybutyrate)

Blending of polyamide-6 (PA6) with bacterial poly (-hydroxybutyrate) (PHB) is studied.  Ellis approach has been improved to calculate the segmental interaction parameter. Crystallinity, miscibility and morphology of the blends have been investigated at different weight fractions and different crystallization temperatures.

 

 

Aiman Eid Al-Rawajfeh*, Hasan A. Al-Salah, Ismael Al-Rhael

JJC, 2006, 1(2), 155-170

Development of Adsorptive Stripping Voltammetric Procedure for the Determination of Josamycin, a Macrolide Antibiotic

The applicability of the electroanalytical technique (namely, adsorptive stripping voltammetry) for the determination of Josamycin macrolide antibiotic in its pharmaceutical dosage forms and in body fluids (serum and urine) is represented and discussed.

 

Ahmad H. Alghamdi*, Mohammed A. Alshadokhy and Abdulrahman A. Alwarthan

JJC, 2006, 1(2), 171-182

 

Quantum-Chemical  Study  of  Structural  and Thermodynamic Properties of Free Small Tin Clusters

EHMO electronic structure calculations were performed for the neutral and singly positive charged tin clusters in the size range of N=2-17 atoms. Moreover our calculations were extended to include the thermodynamic properties of tin clusters at various temperatures.

 

A. Kodlaa*  and  J. Sattouf

JJC, 2006, 1(2), 183-197