Výsledky vyhledávání - "Ahmad S. Abushamleh"

Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones. Template Synthesis of Nickel(II) Tetraaza-(4N-M) Complexes Incorporating the Triazinone Moiety

Autor: Ahmad S. Abushamleh, Marwa M. Al-Aqarbeh, Vector Day

Publikováno v: American Journal of Applied Sciences. 5:750-754

Template reactions of (L)-3-acetyl-5-methyl-1-phenyl-4,5-dihydro-1,2,4-triazine-6- one (8a) or (L)-3-acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazine-6-one (8b) with nickel(II) acetate in the presence of a suitable diamine such as: 1,3-diaminoprop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4137a4a46d3af492c5bc8cdc4e610b8c
https://doi.org/10.3844/ajassp.2008.750.754

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Crystal Structures and Raman Spectra ofcis-[SnCl4(H2O)2]·2H2O,cis-[SnCl4(H2O)2]·3H2O, [Sn2Cl6(OH)2(H2O)2]·4H2O, and [HL][SnCl5(H2O)]·2.5H2O (L=3-acetyl-5-benzyl-1-phenyl-4, 5-dihydro-1, 2, 4-triazine-6-one oxime, C18H18N4O2)

Autor: Abdel-Fattah Shihada, Ahmad S. Abushamleh, Frank Weller

Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 630:841-847

The complexes cis-[SnCl4(H2O)2]·2H2O (1), [Sn2Cl6(OH)2(H2O)2]·4H2O (3), and [HL][SnCl5(H2O)]·2.5H2O (4) were isolated from a CH2Cl2 solution of equimolar amounts of SnCl4 and the ligand L (L=3-acetyl-5-benzyl-1-phenyl-4, 5-dihydro-1, 2, 4-triazine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95d25b09728275fab05c349259ebb76c
https://doi.org/10.1002/zaac.200400007

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Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones, Part IV [1]. Synthesis and Structural Characterization of a Copper(II) Complex of (L)-3-Acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one Oxime

Autor: Mustafa M. El-Abadelah, Ahmad S. Abushamleh, Wolfgang Voelter, Cäcilia M. Mössmer

Publikováno v: Zeitschrift für Naturforschung B. 57:547-551

Reaction of (L)-3-acetyl-5-benzyl-1-phenyl-4,5,-dihydro-1,2,4-triazine-6-one oxime (1) with copper acetate afforded the complex 5 in high yield. Single crystal X-ray structural analysis of 5 revealed a square-pyramidal geometry around the copper ion

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71cc7ece546c88a78ccbb0fd07b0c17e
https://doi.org/10.1515/znb-2002-0511

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Factors affecting the threading of axle molecules through macrocycles: Binding constants for semirotaxane formation

Autor: Daryle H. Busch, Thomas Clifford, Ahmad S. Abushamleh

Publikováno v: Proceedings of the National Academy of Sciences. 99:4830-4836

The threading of more or less linear axle molecules through macrocyclic molecules, a fundamental process relating to the formation of interlocked molecular structures, has been investigated through the study in acetone of the equilibrium constants fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbca6357f5b9160223b14a44e2f44740
https://doi.org/10.1073/pnas.062639799

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Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones. Part III [1]. X-Ray Crystal Structure Analysis of N,N’-Bis[(1-phenyl-5-isopropyl-4,5-dihydro-6-oxo-1,2,4-triazin-3-yl)ethylidene]- propane-1,3-diamine Nickel(II)

Autor: Mustafa M. El-Abadelahb, Wolfgang Voelter, Ahmad S. Abushamleh

Publikováno v: Zeitschrift für Naturforschung B. 55:1074-1078

Template reaction of L-3-acetyl-1-phenyl-5-isopropyl-4,5-dihydro-1,2,4-triazin-6-one (lb) with 1,3-diaminopropane and nickel acetate gave the corresponding chiral complex 4 in high yield. X-ray structure determination showed that the nickel complex i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0a24ad59c3357d2ecafa1e181c6a623
https://doi.org/10.1515/znb-2000-1113

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ChemInform Abstract: Substituent Effect on 'Ring-Chain' Tautomerism of 1,2,3,4-Tetrahydro-s-tetrazines

Autor: Ahmad Q. Hussein, Mustafa M. El-Abadelah, Ahmad S. Abushamleh

Publikováno v: ChemInform. 22

Methylhydrazones (III) of aromatic aldehydes and ketones react with nitrile imines (II) to give 1,2,3,4-tetrahydro-s-tetrazines IV (1-9) which exhibits “ring-chain” tautomerism in solution. The extent of this tautomerism is dependent both on ster

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2510a3513fc7dab2775c8876c217c28a
https://doi.org/10.1002/chin.199137053

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Synthesis, Spectroscopic Studies, and Crystal Structure of 3-(1- Hydroxyiminoethyl)-1-phenyl-4-hydro-1,2,4-triazine-5,6-dione Methanol Solvate

Autor: Frank Weller, Abdel-Fattah Shihada, Ahmad S. Abushamleh

Publikováno v: HETEROCYCLES. 60:2123

3-(1-Hydroxyiminoethyl)-1-phenyl-4-hydro-1,2,4-triazin-5,6-dione, has been prepared from the chiral 1-phenyl-3-acetyloxime-5-benzyl-4,5-dihydro-1,2,4-triazin-6-one in the presence of organotin(IV) compounds in methanol solution. It crystallizes as a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b592e95a0d7123c8262fb08097753b3b
https://doi.org/10.3987/com-03-9819

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