Browsing by Title Facultad de Ciencias
Now showing items 7340-7359 of 8176
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(AMER CHEMICAL SOC, 2010-10-20)Lakshminine (6-amino-1-aza-5-methoxy-7H-dibenzo[de,h]quinolin-7-one, 1) is a recent addition to the small family of oxoisoaporphine alkaloids and a member of an even smaller set bearing an amino group at C-6. This rare ...
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(1982)A partially purified enzyme preparation from the flavedo of Citrus limonum utilized [1-3H]linalyl pyrophosphate as a substrate for cyclic terpene hydrocarbon formation more efficiently than the pyrophosphates of nerol and ...
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(Sociedad Chilena de Quimica, 2014)In the last four years a group of extremely potent designer drugs, the N-benzylated phenylethylamines known as the NBOMe series, has surfaced on the street and in the news media. Although data documenting their high affinity ...
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Synthesis of nanostructured materials by a new solid state pyrolysis organometallic polymer method (2005)In this study, the preparation of nanostructured particles of metal/metal oxides by using a pyrolysis of organometallic polyphosphazenes having the metal anchored to the polymeric chain is described. The elaboration process ...
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(2016)A p-tertbutylcalix[4]arene derivative was synthesized from a reaction of the diisothiocyanate p-tertbutylcalix[4]arene, obtaining crystals that were then characterized by mass spectroscopy, Raman spectroscopy, and ...
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(2003)The preparation and spectroscopic properties of new dipyrido[3,2-a:2′,3′-c]phenazine ruthenium complexes are described. The complexes show high catalytic activity in the water gas shift reaction in a basic medium under ...
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(2013)A novel methodology for the synthesis of S- and N-functionalized dithiocarbamates starting from cyclic sulfates, amines and carbon disulfide by using different protocols, including microwave assistance and a multicomponent ...
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Synthesis, characterization and crystal structure of [Ru(tppz)(4,4′-(CH3)2bpy)Cl](PF6), (tppz = ... (Elsevier Ltd, 1996)The synthesis and characterization of the complex [Ru(tppz)(4,4′-(CH3)2bpy) Cl]+ , where tppz = 2,3,5,6-tetrakis(2-pyridyl)pyrazine, is reported. The ion was obtained in a one pot synthesis by reduction of Ru(4,4′-(CH3)2bpy)Cl4 ...
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(2003)The new quaternary selenophosphate phases AMP2Se6 (A ¼ Cu, Ag and M ¼ Bi, Sb) were synthesized by ceramic methods at 1023 K. These phases were characterized by powder X-ray diffraction (XRD), Fourier transform infrared ...
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(2003)The new quaternary selenophosphate phases AMP2Se6 (A = Cu, Ag and M = Bi, Sb) were synthesized by ceramic methods at 1023 K. These phases were characterized by powder X-ray diffraction (XRD), Fourier transform infrared ...
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(Elsevier, 2015)Five new organometallic Ru(II) compounds (VI-X) with the general formula [Ru(eta(6)-arene)(N,N)CI]PF6, where arene-N,N correspond to methylisoeugenol-bipyridine (VI); anethole-bipyridine (VII); methylisoeugenol-ethylenediamine ...
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(Elsevier, 2015)© 2014 Elsevier B.V. All rights reserved. Abstract Five new organometallic Ru(II) compounds (VI-X) with the general formula [Ru(η6-arene)(N,N)Cl]PF6, where arene-N,N correspond to methylisoeugenol-bipyridine (VI); ...
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(Elsevier, 2015)In this work we report the preparation of six new donor–metal–acceptor (D–M–A) type complexes of ruthenium(II) with the highly absorbing ‘‘chromophoric’’ ligand 4,40-bis(2-(4-methoxyphenyl)styryl)- 2,20-bipyridine, ...
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(Elsevier, 2017)Nitrogen compounds are widely investigated due to their pharmacological properties such as antihypertensive, antinociceptive, antibacterial, antifungal, analgesic, anticancer and inhibition activities and lately even as ...
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(2001)A series of S-nitrosothiol compounds, structurally related to the NO-donor S-nitroso-N-acetyl-D,L-penicillamine (SNAP) that contain amidin groups were synthesised by S-nitrosation of the corresponding thiols and characterised. ...
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(Elsevier, 2004)Layered compounds are nanostructured, intrinsically anisotropic materials which often undergo intercalation reactions producing host– guest complexes. In this work examples from the molybdenum disulfide chemistry are used ...
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(Elsevier, 2020)During the last decade, the one drug-one target strategy has resulted to be inefficient in facing diseases with complex ethiology like Alzheimer's disease and many others. In this context, the multitarget paradigm has ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-03-15)The present work reports the synthesis and spectroscopic and electrochemical characterization of homoleptic copper(l) complexes with substituted pirazino [2,3-f]-1,10-phenanthroline, RpplR', (R = H, Me, COOH or COOMe, and ...
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(2003)The high molecular weight phosphazene random copolymer {[NP(OC 6H5)2]0.94 [NP(OC6H 5)(OC6H4CNFe(dppe)CP)]0.06[PF 6]0.06}n (1), that carries [Fe(dppe)Cp] cationic fragments coordinated to nitrile side groups, has been ...