Journal•ISSN: 0095-8972
Journal of Coordination Chemistry
Taylor & Francis
About: Journal of Coordination Chemistry is an academic journal published by Taylor & Francis. The journal publishes majorly in the area(s): Crystal structure & Ligand. It has an ISSN identifier of 0095-8972. Over the lifetime, 7826 publications have been published receiving 75773 citations. The journal is also known as: Coordination chemistry.
Topics: Crystal structure, Ligand, Copper, Schiff base, Denticity
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TL;DR: Chromium is known to have 100-fold more toxicity than trivalent chromium, for both acute and chronic exposures because of its high water solubility and mobility, as well as easy reduction.
Abstract: Chromium exists in oxidation states ranging from −IV to +VI, inclusively. The compounds exhibit a wide range of geometries including square planar, tetrahedral, octahedral, and various distorted geometries. Ore refining, chemical and refractory processing, cement-producing plants, automobile brake lining, catalytic converters for automobiles, leather tanneries, and chrome pigments contribute to the atmospheric burden of chromium. Hexavalent chromium is known to have 100-fold more toxicity than trivalent chromium, for both acute and chronic exposures because of its high water solubility and mobility, as well as easy reduction. The respiratory tract is the major target organ for hexavalent chromium following the inhalation exposure in humans. Chronic inhalation exposure to hexavalent chromium results in effects on the respiratory tract, with perforations and ulcerations of the septum, bronchitis, decreased pulmonary function, pneumonia, and nasal itching and soreness as reported. Chronic human exposure to h...
578 citations
TL;DR: The lanthanides are under the limelight when it comes to high technology as discussed by the authors, because of their remarkable and unmatched optical and magnetic properties, these elements are used in strategic application.
Abstract: Because of their remarkable and unmatched optical and magnetic properties, the lanthanides are under the limelight when it comes to high technology. These elements are used in strategic application...
223 citations
TL;DR: In this article, structural properties and biological studies of transition metal complexes derived from 4-aminoantipyrine are discussed. But the most important results of extensive studies (syntheses, spectral, magnetic, redox, structural characteristics, antimicrobial and DNA cleavage) of the metal complexes with heterocyclic Schiff bases of 4-AMINOANTipyrines with some aldehydes and oximes are reviewed.
Abstract: The survey highlights structural properties and biological studies of transition metal complexes derived from 4-aminoantipyrine. The most important results of extensive studies (syntheses, spectral, magnetic, redox, structural characteristics, antimicrobial and DNA cleavage) of the metal complexes with heterocyclic Schiff bases of 4-aminoantipyrine with some aldehydes and oximes are reviewed.
180 citations
TL;DR: In this paper, the pore structure of large pore zeolites X or Y is prepared by a process of sequential introduction of components followed by assembly inside the void space of the zeolite.
Abstract: Phthalocyaninatoiron (FePc) complexes may be prepared inside the pore structure of large pore zeolites X or Y by a process of sequential introduction of components followed by assembly inside the void space of the zeolite. Such species are capable of performing as catalysts in the oxidation of alkanes using iodosobenzene as the oxygen atom transfer reagent. The fact that such catalysis is constrained to occur inside the size- and shape-selective zeolite crystallites imposes unique selectivities on the distribution of oxidized products. These catalysts prefer to oxidize the smaller of two competitive substrates and to oxidize toward the ends of the long molecular axis of such substrates. In addition. stereoselectivity is apparent in cases of oxidations with diastereotopic C–H bonds. All of the observed selectivities can be explained in terms of the sieving and orienting effects of the zeolite hosts. While selectivities are moderate with the native zeolites, they may be considerably adjusted by simply alter...
145 citations
TL;DR: The bis-Schiff-base of N2O2 donor dibasic ligand, H2L, is synthesized by the reaction of 4,6-diacetylresorcinol with ethylamine in molar 1/2 ratio as mentioned in this paper.
Abstract: The bis-Schiff-base of N2O2 donor dibasic ligand, H2L, is synthesized by the reaction of 4,6-diacetylresorcinol with ethylamine in molar 1 : 2 ratio. The ligand is characterized using IR, UV-Vis, 1H NMR and mass spectroscopy. The 1H NMR spectrum of the ligand shows the presence of phenolic coordinating groups. Several new mixed ligand complexes of the Schiff-base ligand (H2L) and (L′) where (L′) = deprotonated 8-hydroxyquinoline (8-HQ), 2,2′-bipyridine (2,2′-Biby) and 1,10-phenanthroline (1,10-Phen) with different metal ions such as Co(II), Ni(II), Cu(II) and UO2(VI) are synthesized. Elemental analyses, infrared, ultraviolet-visible, electron spin resonance and thermal analysis, as well as conductivity and magnetic susceptibility measurements, are used to elucidate the structures of the newly prepared metal complexes. The complexes are isolated as binuclear and confirmed by ESR spectra. Thermal degradation studies for some complexes show that the final product is the metal oxide. In addition, thermal grav...
137 citations