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AbstractAbstract
[en] Sodium triaqua[(1,2-ethanediyldinitrilo-κ2N,N')tetraacetato-κ4O1,O2,O3 ,O4]lanthanate(III) pentahydrate, Na[La(C10H12N2O8)(H2O)3].5H2O, sodium t triaqua[(1,2-ethanediyldinitrilo-κ2N,N')tetraacetato-κ4O1,O2,O3 ,O4]-neodymate(III) pentahydrate, Na[Nd(C10H12N2O8)-(H2O)3].5H2O, and sodium triaqua[(1,2-ethanediyldinitrilo-κ2N,N')tetraacetato-κ4O1,O2,O3 ,O4]europate(III) pentahydrate, Na[Eu(C10H12N2O8)(H2O)3].5H2O, are isomorphous and isostructural; all contain nine-coordinate lanthanoid ions, each of which bonds to two N atoms, four acetate O atoms and three water molecules. (orig.)
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Acta Crystallographica. Section C: Crystal Structure Communications; ISSN 0108-2701;
; CODEN ACSCEE; v. 51(8); p. 1559-1563

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AbstractAbstract
[en] The complexes of the type Cs2MCl4 (where M = Fe, Co, Ni, Cu, Zn and Mg) have distorted tetrahedral structure. Varied distortion from regular tetrahedral geometry is due to the covalent bonding between Cs-Cl. The species [MCl4]2- ions act as double faced bidentate ligands. The structure has been substantiated by IR spectra and crystal structure data. (author). 14 refs., 3 tabs
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AbstractAbstract
No abstract available
Original Title
Estrutura eletronica dos condutores lineares
Source
37. Annual Meeting of the Brazilian Society for the Advancement of Science; Belo Horizonte, MG (Brazil); 10-17 Jul 1985; Published in summary form only.
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Palkina, K.K.; Churakov, A.V.; Kochetov, A.N.
XIX Mendeleev Congress on general and applied chemistry. Four-volumes book. Abstracts. Volume 1. Plenary lectures. Fundamental problems of chemical science2011
XIX Mendeleev Congress on general and applied chemistry. Four-volumes book. Abstracts. Volume 1. Plenary lectures. Fundamental problems of chemical science2011
AbstractAbstract
No abstract available
Original Title
Osobennosti formirovaniya karkasnykh struktur so svyazyami M-C v soedineniyakh metallov (+I) s tsiklicheskimi β,β'-trikarbonil'nymi ligandami
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Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Administratsiya Volgogradskoj Oblasti, Volgograd (Russian Federation); Ministerstvo Obrazovaniya i Nauki Rossijskoj Federatsii, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Rossijskij Soyuz Khimikov, Moscow (Russian Federation); 635 p; ISBN 978-5-9948-0782-8;
; ISBN 978-5-9948-0783-5 (VOLUME 1);
; 2011; p. 563; 19. Mendeleev Congress on general and applied chemistry; XIX Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Volgograd (Russian Federation); 25-30 Sep 2011; 1 ref.


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AbstractAbstract
[en] μSR spectra from a metal carbonyl compound are reported for the first time. The metal cluster compound Cs2[Os10C(CO)24] shows a temperature dependent signal for implanted muons with the onset of motional narrowing at ca. 200 K. Also observed is a probable change in the width within the temperature range 40-140 K. A tentative assignment is provided for the muon sites. (orig.)
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5. international conference on muon spin rotation, relaxation and resonance; Oxford (UK); 9-12 Apr 1990
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AbstractAbstract
[en] The new compounds LiK[C(CN)3]2 and Li[C(CN)3] . 1/2 (H3C)2CO were synthesized and their crystal structures were determined. Li[C(CN)3] . 1/2 (H3C)2CO (H3C)2CO crystallizes in the orthorhombic space group Ima2 (no. 46) with the cell parameters a=794.97(14), b=1165.1(2) and c=1485.4(3) pm, while LiK[C(CN)3]2 adopts the monoclinic space group P21/c (no. 14) with the cell parameters a=1265.7(2), b=1068.0(2) and c=778.36(12) pm and the angle β=95.775(7) . Single crystals of K[C(CN)3] were also acquired, and the crystal structure was refined more precisely than before corroborating earlier results.
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Zeitschrift fuer Naturforschung. B: Chemical Sciences; ISSN 0932-0776;
; v. 70(3); p. 191-196

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Zhou, Y; Morais-Cabral, J; Kaufman, A; MacKinnon, R
Brookhaven National Lab., Upton, NY (United States); National Synchrotron Light Source (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)2001
Brookhaven National Lab., Upton, NY (United States); National Synchrotron Light Source (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)2001
AbstractAbstract
No abstract available
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Source
AC02-98CH10886; Available from Brookhaven National Lab., Upton, NY (US)
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Jubert, A.H.; Varetti, E.L.; Nakamoto, K.; Sala, O.; Aymonino, P.J.
Abstracts of the 16. Latin-American Congress of Chemistry1984
Abstracts of the 16. Latin-American Congress of Chemistry1984
AbstractAbstract
No abstract available
Original Title
Perfil de excitation derivado de espectros de resonancia Raman del K7[(CN)5MnOMn(CN)5]CN
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Federacion Latinoamericana de Asociaciones Quimicas, Rio de Janeiro (Brazil); 686 p; 1984; p. 243; 16. Latin-American Congress of Chemistry; Rio de Janeiro, RJ (Brazil); 14-20 Oct 1984; Published in summary form only.
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Miscellaneous
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AbstractAbstract
[en] This work deals with the study of norbadione A, a pigment extracted from mushrooms and known to complex cesium cations. The study of the acid-base properties of norbadione A has allowed to determine the relative acidity of the seven protonable functions of the molecule and to reveal a reversible isomerization of the double exocyclic bond of the pulvinic moieties. The observed change of configuration is induced by a hydrogen bond of the H-O-H type and by electrostatic interactions. Moreover, the microscopic protonation mechanism of the norbadione A has been analyzed, considering three different study media where the acid-base properties of the norbadione A are compared. In the presence of 0.15 mol.l-1 of NaCl, it has been observed a remarkable cooperativity in the protonation of the enol groups. At last, the use of different analytical methods (NMR, potentiometry and calorimetry) has allowed to study the complexing properties of the norbadione A towards cesium and other alkaline and rare earth cations. (O.M.)
Original Title
Etude des proprietes conformationnelles et acido-basiques de la norbadione A et de derives pulviniques: consequences sur leurs proprietes complexantes de cations alcalins et alcalino-terreux
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Jan 2006; 191 p; 154 refs; Also available from Bibliotheque Universitaire de l'Universite Louis Pasteur-Section Sciences et technique, 2, rue Blaise Pascal BP 1037/F, 67070 - Strasbourg Cedex (France); These chimie-physique
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AbstractAbstract
[en] The results of ab initio electronic structure calculations on the C60 cage and its endohedral (''inside-the-cage'') complexes with F-, Ne, Na+, Mg2+, and Al3+ are presented. Placing the ions at the center of the cage results in a net stabilization and screening of the charges. The ionic guests either decrease (F-) or increase (Na+, Mg2+, and Al3+ ) the cage radii. The complexes with the ions at the cage center are local maxima with respect to the displacement of the guests. The C60·Ne complex, which is destabilized by ca. 0.4 kcal/mol relative to the separated components, is an energy minimum. In the C60·Na+ complex, the energy minimum (which lies only 0.8 kcal/mol below the maximum) corresponds to the Na atom displaced by 0.66 A from the cage center. The calculated properties of the endohedral complexes are easily rationalized with a model involving a double-layer polarizable C60 cage affected by the electrostatic potential produced by the enclosed guests
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