Reactions of enaminones 3a-f with malononitrile under microwave irradiation conditions were found to afford cyano-substituted aminodienamides 8a-f, whose structures were elucidated using both X-Ray crystallographic analysis and NOE methods. In addition, cyclization of 8e to form...
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Research Article10.9734/IRJPAC/2012/823
The versatile coordination abilities of o-phthalic acid, containing two carboxylic groups in ortho-position, allow for a variety of structures ranging from discrete complexes to 1D, 2D and 3D architectures. This review focuses on the synthesis and structural particularities of zi...
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Research Article10.9734/IRJPAC/2012/717
The electronic and conduction properties of a copolymer, based on polythiophene (PTP) and its derivatives: polyisothianaphthene (PITN) and polyisonaphthothiophene (PINTP), have been studied. The optimum percentages of the homopolymer units PTP, PITN and PINTP in the copolymer hav...
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Research Article10.9734/IRJPAC/2012/681
A suggestive relation links Fisher' information measure (FIM)Iand Schrödinger equation (SE). The connection is based upon the fact that the constrained minimization of I leads to a SE. This, in turn, is the origin of intriguing relationships between various aspects of SE, on the...
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Research Article10.9734/IRJPAC/2012/777
3,5-bis(5-(furan-2-yl)-1,3,4-oxadiazol-2-yl)azo dyes were synthesized by multistep reaction sequences, which is diazotized and coupled with different napthols and quinoline. Structure of newly synthesized compounds were characterized and confirmed by IR, NMR and Mass spectral stu...
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Research Article10.9734/IRJPAC/2011/493
An on-line solid-phase extraction (SPE) technique, linked to spectrophotometry, has been developed to overcome the problem of high matrix concentration, which is thought to interfere with the determination of low levels of aluminum in environmental samples. Aurintricarboxylic aci...
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Research Article10.9734/IRJPAC/2011/473
Condensation of methylketones 1a,b with dimethylformamide dimethyl acetal (DMFDMA) without solvent in microwave oven afforded enaminones 2a,b, which reacted with malononitrile in ethanolic piperidine to yield dienoic acid amides 7a,b. In contrast, reactions of 2a,b with cyanoacet...
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Research Article10.9734/IRJPAC/2011/504
TiO2 (anatase) – based photocatalyst powders containing up to 1.00 wt% of magnesium(II) and copper(II) were synthesized using sol– gel method. The powders were characterized by UV–visible Diffuse Reflectance Spectroscopy (DRS), X-ray diffraction (XRD), N2 adsorption–desorption (...
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Research Article10.9734/IRJPAC/2011/453
Although entropy change – the process described by Clausius and characterized as the second law of thermodynamics – involves only two terms, energy change and temperature, neither he nor distinguished scientists of the past century focused on that fact. The novel word “entropy”...
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Research Article10.9734/IRJPAC/2011/679
Sol-gel synthesis of Bi2+xAlxNi4-3xO7+δ (A1-A4: x = 0.0, 0.25, 0.50, 0.75) composite oxides were performed via nitrate-citrate route. Analysis of the powder XRD patterns by Fullprof shows cubic unit cell with lattice parameters in A1-A4: a = 10.2678, 10.1197, 10.1183, 10.1134 Å;...
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Research Article10.9734/IRJPAC/2011/351
This paper is an original attempt to analyze a series of experimental data obtained lately by the author in a course of his long term studies on the probable role of isotopy in the molecular evolution of living systems as well as in the eukaryotic cell differentiation mechanisms....
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Research Article10.9734/IRJPAC/2011/369
Peptides were synthesized by the reaction of Fmoc-amino acid chloride and aminoacid ester hydrochloride in DCM. The obtained peptide ligands were characterized by elemental analysis, NMR, IR and mass spectra. Three copper complexes of peptides Fmoc.Ala-val-OH (F-AVOH), Fmoc-Phe-L...
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Research Article10.9734/IRJPAC/2011/307
The extracts from Cissus adnata Roxb. leaves and Smilax lanceaefolia Roxb. roots have been used as medicinal remedies to promote dissolution and expulsion of urinary calculi. From methanol extract of the leaves of Cissus adnata, three compounds, namely, CSM1 (a triterpenoid), CSM...
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Research Article10.9734/IRJPAC/2011/281