Fathi Aqra

Palestine Polytechnic University

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Ahmed Ayyad

BrightSpec

K. S. Siddiqi

Aligarh Muslim University

Syed Asad Ali Shah

Kohat University of Science and Technology

Awni Khatib

Hebron University

S. A. A. Zaidi

Aligarh Muslim University

David W. Deamer

University of California, Santa Cruz

Allen G. Oliver

University of Notre Dame

Rasheed M. A. Q. Jamhour

Tafila Technical University

Jaume Casabó

Universitat Autònoma de Barcelona

ShakeelAhmad Shah

Aligarh Muslim University

Cooperative Institutions

Aligarh Muslim University

Hebron University

Palestine Polytechnic University

University of Bahrain

University of Helsinki

Universitat Autònoma de Barcelona

University of Jyväskylä

Institut de Ciència de Materials de Barcelona

University of California, Santa Cruz

Technion – Israel Institute of Technology

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Temperature dependence surface tension of molten lanthanum, praseodymium, samarium and erbium trichlorides

Fluid Phase Equilibria (2015)

Fathi Aqra

Praseodymium

Lanthanum

Sublimation

Erbium

10.1016/j.fluid.2014.12.049

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Citations (2)

Transition Metal Chemistry (2003)

Fathi Aqra

Organometallic Chemistry

Benzil

10.1023/a:1022975829744

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Citations (6)

Group IV Metal Complexes of the Dithiocarbamate Ligahd Derived from Propanediamine

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry (1993)

K. S. Siddiqi Fathi Aqra Syed Asad Ali Shah S. A. A. Zaidi

Abstract Abstract Fropanediamine dithiocarbamate and its metal complexes with MCl4. (Si = M Ge, Sn, Ti, and Zr) and Ph2-SnCl2 have been synthesized and characterized. The results indicate that MCI4. reacts in a 1, 4 (metal : dithiocarbamate) ratio yielding an octahedral compound with two symmetrically and two unsym-metrically bound dithiocarbamato groups while Ph2SnCl2 reacts in a 1: 1 ratio leading to the formation of a stable five-coordinate complex with the phenyl groups occupying the equatorial positions.

Dithiocarbamate

10.1080/15533179308016852

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Citations (4)

Surface energies of metals in both liquid and solid states

Applied Surface Science (2011)

Fathi Aqra Ahmed Ayyad

Liquid metal

10.1016/j.apsusc.2011.01.123

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Citations (114)

Theoretical Estimation of Temperature-Dependent Surface Tension of Liquid Antimony, Boron, and Sulfur

Metallurgical and Materials Transactions B (2011)

Fathi Aqra Ahmed Ayyad

10.1007/s11663-011-9506-5

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Citations (8)

Tunable Interaction of NN′-Ethylenebis(Salicylideneiminato) Copper(II) with Group IV Metal Tetrachlorides

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry (1993)

K. S. Siddiqi Fathi Aqra Syed Asad Ali Shah S. A. A. Zaidi Noor‐ul H. Khan

Abstract New heterobimetallic chelates [CuLMCl4] [M = Si, Ge, Sn, Ti and Zr; L = NN′-ethylenebis(salicylideneiminate)] prepared by treating CuL with Group IV metal tetrachlorides in a 1:1 ratio were characterized by e. s. r., electronic and i. r. spectroscopy, elemental analysis and conductivity measurements. The e. s. r. spectral g-values indicate square planar environments for copper(II) in both CuL and [CuLMCl4]. Conductivity measurements show that the heterobimetallic chelates are non-electrolytes. The phenolic C-O stretching frequency shifts to higher frequencies in the i. r. spectra of auducts suggesting that a coordinate bond is formed between oxygen of CuL and the Group IV metal.

10.1080/15533179308016713

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Citations (3)

Theoretical consideration of the anomalous temperature dependence of the surface tension of pure liquid gallium

Theoretical Chemistry Accounts (2010)

Ahmed Ayyad Fathi Aqra

Atmospheric temperature range

Capillary wave

Reduced properties

10.1007/s00214-010-0731-9

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Citations (33)

Bidentate bonding mode of tetrahydroborate and nitrite towards copper(II) in open-faced macrocyclic complexes

Transition Metal Chemistry (2004)

Fathi Aqra

Organometallic Chemistry

10.1007/s11243-004-3223-8

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Citations (1)

Nickel Complexes of Alanine Having a Preference for One Chiral Form over Another upon Crystallization

Bulletin of the Korean Chemical Society (2009)

Awni Khatib Fathi Aqra

Three complexes, [bis(L-, D- and DL-alaninato)(diaqua)]nickel(II) di-hydrate, were prepared and characterized by X-ray crystallography, gas chromatography, UV-Visible spectroscopy and isothermal calorimetry. Small deviations from the 50:50 distribution of the enantiomers assigned to chiral preferences of the ligands in the complexes were observed. The surprising and unexpected results indicate that complexing alanine with nickel(II) ion alters the racemization rates of D and L isomers of the amino acid. The precipitated complex due to change in pH resulted in preferential precipitation of one isomer with respect to the other. It has been observed that this alternation is ogmented by the long time span which would result in preferential protein forming from the L-isomer. Although the results are bizarre and perplexing, they are fascinating and sound scientifically.

Racemization

Alanine

10.5012/bkcs.2009.30.9.2017

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Citations (5)

Surface tension of molten metal halide salts

Journal of Molecular Liquids (2014)

Fathi Aqra

Sublimation

Molten metal

Metal halides

Enthalpy of sublimation

10.1016/j.molliq.2014.09.052

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Citations (14)