Results 21 to 30 of about 165,932,823 (169)

Thermodynamic Properties of Organic Compounds. 3. Sublimation Enthalpy and Heat Capacities of 2,4,6-Trimethylbenzonitrile N-oxide [PDF]

open access: yes, 1993
Article discussing thermodynamic properties of organic compounds and sublimation enthalpy and heat capacities of 2,4,6-trimethylbenzonitrile N ...
Sevruk, Viktor M.   +5 more
core   +1 more source

Are the sublimation thermodynamics of organic molecules predictable? [PDF]

open access: yes, 2016
We compare a range of computational methods for the prediction of sublimation thermodynamics (enthalpy, entropy and free energy of sublimation). These include a model from theoretical chemistry that utilizes crystal lattice energy minimization (with the ...
van Mourik, Tanja   +13 more
core   +1 more source

Estimativa por DSC das entalpias de sublimação da etilenouréia e da propilenouréia: algumas correlações empíricas envolvendo amidas e tioamidas Estimative by DSC data of the sublimation enthalpies for ethyleneurea and propyleneurea: some empirical correlations with amides and tioamides

open access: yesQuímica Nova, 1999
By using DSC data, the enthaplies of sublimation for ethyleneurea and propyleneurea, are calculated as 84 and 89 kJ mol-1 respectively. Using the vaporization enthalpy values for dimethylethyleneurea and dimethylprophyleneurea, as obtained from ...
Robson Fernandes de Farias
doaj   +1 more source

Thermochemistry of Solution, Solvation, and Hydrogen Bonding of Cyclic Amides in Proton Acceptor and Donor Solvents. Amide Cycle Size Effect

open access: yesMolecules, 2021
In the present work, the thermochemistry of solution, solvation, and hydrogen bonding of cyclic amides in proton acceptor (B) and proton donor (RXH) solvents were studied. The infinite dilution solution enthalpies of δ-valerolactam, N-methylvalerolactam,
Ilnaz T. Rakipov   +5 more
doaj   +1 more source

DETERMINATION OF SATURATION VAPOR PRESSURE OF LOW VOLATILE SUBSTANCES THROUGH THE STUDY OF EVAPORATION RATE BY THERMOGRAVIMETRIC ANALYSIS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Study.Research of vapor pressure of low volatile substances is a complicated problem due to both direct experimental implementation complexity and, most significantly, the issues faced correctness of the analysis and processing of experimental
R. V. Ralys   +2 more
doaj   +1 more source

Caging Polyhalide Anions in Polycyclodextrin for Long‐Lasting Aqueous Zinc‐Iodine Batteries

open access: yesAngewandte Chemie, EarlyView.
We demonstrated poly(β‐cyclodextrin) gel as an ideal host material that effectively contains and releases polyhalide anions in aqueous zinc‐iodine batteries. Such a unique host‐guest chemistry prevents the shuttle effect of polyhalides. The corresponding batteries can operate via both 2e and 4e storage, attaining 60,000 cycles with more than 99% and 85%
Shangxu Jiang   +7 more
wiley   +2 more sources

A Combined Experimental and Theoretical Study of Nitrofuran Antibiotics: Crystal Structures, DFT Computations, Sublimation and Solution Thermodynamics

open access: yesMolecules, 2021
Single crystal of furazolidone (FZL) has been successfully obtained, and its crystal structure has been determined. Common and distinctive features of furazolidone and nitrofurantoin (NFT) crystal packing have been discussed.
Alex N. Manin   +4 more
doaj   +1 more source

Control of grain size in sublimation-grown CdTe, and the improvement in performance of devices with systematically increased grain size [PDF]

open access: yes, 2010
A method to control the grain size of CdTe thin films deposited by close space sublimation using chamber pressure is demonstrated. Grain diameter is shown to increase in the pressure range 2–200 Torr, following the linear relationship D (?m)=0.027×P ...
Forbes, Ian   +4 more
core   +1 more source

Molecular and ionic sublimation of the lanthanide triiodides. Thermochemical properties of LnI3 and Ln2I6 molecules and LnI4– and Ln2I7– ions [PDF]

open access: yes, 2021
The results of systematic investigations of the molecular and ionic sublimation of lanthanide triiodides LnI3 (Ln = La-Lu) by Knudsen effusion mass spectrometry are summarized.
Kudin, L.S.   +4 more
core   +1 more source

Molecular Structure, Thermodynamic and Spectral Characteristics of Metal-Free and Nickel Complex of Tetrakis(1,2,5-thiadiazolo)porphyrazine

open access: yesMolecules, 2021
The Knudsen effusion method with mass spectrometric control of the vapor composition was used to study the possibility of a congruent transition to the gas phase and to estimate the enthalpy of sublimation of metal-free tetrakis(1,2,5-thiadiazolo ...
Yuriy A. Zhabanov   +5 more
doaj   +1 more source

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