171,561 research outputs found
Désir Pour Le Piano / Par C. V. Alkan
No full textDÉSIR POUR LE PIANO / PAR C. V. ALKAN
Désir Pour Le Piano / Par C. V. Alkan (1)
Cover (1)
Titelseite (2)
Noten (3
Troisième recueil de chants
No full textpar Ch. Vin. Alkan ainéPreisangabe: Prix: 12f. - Mit: Extrait du catalogue général de S. Richault: oeuvres de C. A. Alkan, ainéVorlageform des Erscheinungsvermerks: Chez S. Richault, Editeur, 4, Boulevard des Italiens, au 1e
Formamide-(C-1-C-5) alkan-1-ols solvent systems
No full textExcess volumes, excess viscosities, and excess Gibbs energies of activation for viscous flow of binary liquid mixtures of formamide with (C-1-C-5) alkan-1-ols have been calculated from the densities and viscosities measured at 298.15 K over the whole composition range. The viscosity-mole fraction data of the five systems were used to test various empirical laws proposed to describe the viscosity of mixtures: the one-parameter models by Nissan-Grunberg, Hind-McLaughlin-Ubbelohde and Teja-Rice, and the two-parameter models by McAllister, Heric, Lobe, and Cao-Fredenslund-Rasmussen were tested. All correlations were in good agreement except that of Teja-Rice. Deviations with respect to ideal behaviour were interpreted in terms of specific interactions between unlike molecules.33523347
Calculation of chemical-shift tensors of heavy nuclei: a DFT/ZORA investigation of 199Hg chemical-shift tensors in solids, and the effects of cluster size and electronic-state approximations
No full textPublisher's PDFCalculations of the nuclear magnetic resonance chemical-shielding tensors of a suite of mercury-containing
materials using various cluster models for the structures provide a stringent test of the procedures for
forming models and for calculation with various methods. The inclusion of higher co-ordination shells in the
molecular clusters permits quantum chemical calculations of 199Hg chemical-shielding tensor elements
within 3% of the experimental values. We show that it is possible to reduce the size of computationally
expensive molecular-cluster calculations with limited effect on calculated NMR parameters by carefully
introducing the frozen core approximation. The importance of the relativistic Hamiltonian for accurate
predictions of chemical-shielding values is demonstrated within the molecular cluster approach. The results
demonstrate that careful design of a cluster to represent the solid-state structure, inclusion of relativistic
components in the Hamiltonian at least at the spin–orbit level, and judicious use of approximations are
essential to obtain good agreement with experimental results.University of Delaware. Department of Chemistry and Biochemistry
Fünfundzwanzig préludes
No full textcomposés par C. V. Alkan ainéVorlageform des Erscheinungsvermerks: Propriété des Editeurs. Berlin, chez Ad. Mr. Schlesinger. Paris, Brandus. Londres, Copy-righ
Chemical-shift tensors of heavy nuclei in network solids: a DFT/ZORA investigation of 207Pb chemical-shift tensors using the bond-valence method
No full textPublisher's PDF.Cluster models are used in calculation of 207Pb NMR magnetic-shielding parameters of α-PbO, β-PbO, Pb3O4, Pb2SnO4, PbF2, PbCl2, PbBr2, PbClOH, PbBrOH, PbIOH, PbSiO3, and Pb3(PO4)2. We examine the effects of cluster size, method of termination of the cluster, charge on the cluster, introduction of exact exchange, and relativistic effects on calculation of magnetic-shielding tensors with density functional theory. Proper termination of the cluster for a network solid, including approximations such as compensation of charge by the bond-valence (BV) method, is essential to provide results that agree with experiment. The inclusion of relativistic effects at the spin–orbit level for such heavy nuclei is an essential factor in achieving agreement with experiment.University of Delaware. Department of Chemistry and Biochemistry
Partitioning Behavior of Alkan-1-ols between Milkfat and Aqueous Phases As Influenced by Temperature
No full textPartitioning of volatile compounds between lipid and aqueous phases may influence flavor perception
and availability to participate in flavor-generating reactions. The objective of this research was to
characterize the partitioning of short-chain alkan-1-ols between milkfat and aqueous phases, as
influenced by temperature, as compared to an octan-1-ol/water biphasic system (Log P). Temperature
has a positive, but nonlinear, influence on Log P values for alkan-1-ols. There is an approximately 1
log decrease in Log P values of milkfat/water as compared to octan-1-ol/water systems; similar trends
were observed across chain length. Temperature has a greater effect on alkan-1-ol partitioning in
milkfat/water systems than octan-1-ol/water. The latter observation is primarily attributed to the
solidification of milkfat at temperatures below 40 °C and the resulting reduction in liquid lipid solvent
volume.
Keywords: Volatile; cheese; Log P; temperature; aroma; partitionin
Shear viscosities of the N-methylformamide- and N,N-dimethylformamide-(C-1-C-10) alkan-1-ol solvent systems
No full textViscosities of some N-methylformamide- and N,N-dimethylformamide-(C-1-C-10) alkan-1-ol binary mixtures have been measured at 298.15 K over the whole composition range. The excess viscosities and excess Gibbs energies of activation for viscous flow, compared with values for other amide-alcohol mixed solvents, suggest that the alcohol size does not play a significant role in the mixture behaviour. The alcohol mixtures with aliphatic amides gave heteroaggregates to a greater extent, the lower the self-association of the pure amides. An analysis in terms of solvent solubility parameters gave good agreement with experimental results.1118111541,708Q
Proxy value of n-alkan-2-ones in the Hongyuan peat sequence to reconstruct Holocene climate changes on the eastern margin of the Tibetan Plateau
No full textn-Alkan-2-ones in the Hongyuan peat core from the eastern margin of the Tibetan Plateau were investigated to assess the paleoclimate proxy value of variations in their compositions over the last 13,500 cal years. A homologous series of these compounds that ranged from C(19) to C(31) was identified throughout the peat sequence, maximizing at C(23) and showing a strong odd-over-even carbon chain length predominance. To help evaluate the possible paleoclimatic value of the n-alkan-2-ones in the Hongyuan peat core, we compared our molecular results with the pollen records from the same sequence. Results show that past changes in monsoon precipitation amounts as revealed by the ratio of Abies/Cyperaceae (firs/sedges) are also recorded in the n-alkan-2-one (C(23) + C(25))/(C(27) + C(29) + C(31))-KET ratio and CPI-KET (Carbon Preference Index) value. Stratigraphic variations of n-alkane and n-alkanoic acid ratios suggest that changes in the moisture-sensitive microbial alpha-oxidation of odd-chain n-alkanes and decarboxylation of even-chain length n-alkanoic acids is recorded in the abundance of n-alkan-2-ones. Changes in the monsoon rain intensity on millennial scales are also evident in the n-alkan-2-one proxies, indicating that their variations in the peat sequence are correlative with changes in microbial activity controlled by the Asian monsoon. (C) 2011 Published by Elsevier B.V.</p
Paix à la paix: Hymne, pour voix seule (Hymn for solo voice)
No full textA performing edition of Charles-Valentin Alkan’s hymn for solo voice Paix à la paix (1867), a piece discovered by musicologist Hugh Macdonald in the French Archives Nationales. Written by Alkan in response to a competition for an anthem to be sung at the Paris Exhibition of 1867, setting a text by François Coppée, for solo voice or massed voices. For further information on the competition and Coppée’s text, see Jacques Cheyronnaud, Introuvable «Hymne de la paix», Amnis [online], 10 | 2011, URL: http://journals.openedition.org/amnis/1330; DOI : https://doi.org/10.4000/amnis.1330). For further information on Macdonald's discovery, see Alkan Society Bulletin no 90 (January 2014), pp 5-6 (available online at http://www.alkansociety.org/Publications/Society-Bulletins/society-bulletins.html).
This edition premiered at Middlesex University, 21 March 2023
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