About: Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols

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About: Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S0021961412001334
Description	A phase transition study, including vapour pressure determinations of odd fluorotelomer alcohols {oFTOH; CF3(CF2)nCH2OH, with n = 5 to 9}, is reported in order to explore the effect of the successive introduction of -CF2- groups into the molecule on the thermodynamic properties related to (solid + liquid, solid + gas, and liquid + gas) equilibria. An odd-even effect on the thermodynamic parameters of fusion and sublimation was observed in the homologous series of odd fluorotelomer alcohols indicating an increase of the stability in the crystal packing for the members with an odd number of carbon atoms. The vaporization parameters of o-FTOH were compared with the literature data for their alkane analogues and the results showed a higher volatility of liquid fluorotelomer alcohols than their congeners. The higher molecular conformation restriction of perfluorinated alcohols and/or the higher molar mass seems to contribute to their higher entropy of vaporization which drives the volatility of the 1H,1H-perfluorinated alcohols. A phase transition study, including vapour pressure determinations of odd fluorotelomer alcohols {oFTOH; CF3(CF2)nCH2OH, with n = 5 to 9}, is reported in order to explore the effect of the successive introduction of -CF2- groups into the molecule on the thermodynamic properties related to (solid + liquid, solid + gas, and liquid + gas) equilibria. An odd-even effect on the thermodynamic parameters of fusion and sublimation was observed in the homologous series of odd fluorotelomer alcohols indicating an increase of the stability in the crystal packing for the members with an odd number of carbon atoms. The vaporization parameters of o-FTOH were compared with the literature data for their alkane analogues and the results showed a higher volatility of liquid fluorotelomer alcohols than their congeners. The higher molecular conformation restriction of perfluorinated alcohols and/or the higher molar mass seems to contribute to their higher entropy of vaporization which drives the volatility of the 1H,1H-perfluorinated alcohols. (en)
Title	Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols (en)
skos:prefLabel	Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols (en)
skos:notation	RIV/60461373:22340/12:43893742!RIV13-MSM-22340___
http://linked.open...avai/predkladatel	Fakulta chemicko-inženýrská
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	2.4.2012
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Fulem, Michal
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	135269
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/12:43893742
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Vaporization; Sublimation; Fusion; Entropy; Enthalpy; Vapour pressures; Triple point; Phase transitions; Thermodynamics; Odd fluorotelomer alcohols; Perfluorinated compounds; Odd-even effect; Volatility (en)
http://linked.open.../riv/klicoveSlovo	Volatility Thermodynamics Enthalpy Odd fluorotelomer alcohols Odd-even effect Phase transitions Sublimation Triple point Vaporization Vapour pressures Fusion Entropy Perfluorinated compounds
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[C11E86A61A36]
http://linked.open...i/riv/nazevZdroje	Journal of Chemical Thermodynamics
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Fulem, Michal Bernd, Schröder Costa, José C.S. Jo?o A.P., Coutinho Luís M.N.B.F., Santos Manuel J.S., Monte
http://linked.open...ain/vavai/riv/wos	000306491500023
issn	0021-9614
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jct.2012.03.027
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	Evidence of an odd-even effect on the thermodynamic parameters of odd fluorotelomer alcohols

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