About: The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy

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About: The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The integral absorption coefficients for IR bands of carbonyl complexes formed in Cu+Me+-FER zeolites (Me = Na, K, Cs) were determined. Previous work on such systems based on combination of several experimental techniques and perDFT calculations showed that stable monodentate carbonyls on isolated cations in the so-called single cation sites (SCS) Cut(+)-CO and Cu+-CO-Me+ (Me = K, Cs) complexes, where CO molecule is bridging two nearby cations in the so-called heterogeneous dual cation sites (DCS), are formed. In this contribution we made an attempt to determine the quantity of individual carbonyl types using the analysis of IR spectra for CO monolayer coverage on Cu+Me+-FER samples varying in copper content, type of co-cation and nominal Si/Al ratio. Study results in conclusion that IR absorption for SCS (band at 2156cm(-1)) and heterogeneous DCS (bands at 2138 and 2112cm(-1)) complexes has the same magnitude and reaches 21.5cm mu mol(-1). The 95% confidence limits were estimated at +/- 7%. The quantity determination of monovalent copper forming two kinds of carbonyl species in FER pentasil zeolites is demonstrated. The integral absorption coefficients for IR bands of carbonyl complexes formed in Cu+Me+-FER zeolites (Me = Na, K, Cs) were determined. Previous work on such systems based on combination of several experimental techniques and perDFT calculations showed that stable monodentate carbonyls on isolated cations in the so-called single cation sites (SCS) Cut(+)-CO and Cu+-CO-Me+ (Me = K, Cs) complexes, where CO molecule is bridging two nearby cations in the so-called heterogeneous dual cation sites (DCS), are formed. In this contribution we made an attempt to determine the quantity of individual carbonyl types using the analysis of IR spectra for CO monolayer coverage on Cu+Me+-FER samples varying in copper content, type of co-cation and nominal Si/Al ratio. Study results in conclusion that IR absorption for SCS (band at 2156cm(-1)) and heterogeneous DCS (bands at 2138 and 2112cm(-1)) complexes has the same magnitude and reaches 21.5cm mu mol(-1). The 95% confidence limits were estimated at +/- 7%. The quantity determination of monovalent copper forming two kinds of carbonyl species in FER pentasil zeolites is demonstrated. (en)
Title	The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy (en)
skos:prefLabel	The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy The quantity of Cu+ ions forming isolated and bridged carbonyl complexes in FER zeolites determined by IR spectroscopy (en)
skos:notation	RIV/00216275:25310/12:39895165!RIV13-GA0-25310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA203/09/0143), P(GPP208/11/P276), P(LC512)
http://linked.open...iv/cisloPeriodika	January
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Frýdová, Eva Bulánek, Roman Frolich, Karel Koudelková, Eva
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	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	163813
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/12:39895165
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	copper zeolite; bridged carbonyls; dual sites; quantitative analysis; integral absorption coefficient; FTIR (en)
http://linked.open.../riv/klicoveSlovo	FTIR bridged carbonyls copper zeolite dual sites integral absorption coefficient quantitative analysis
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[1D4BDE2F58CA]
http://linked.open...i/riv/nazevZdroje	Vibrational Spectroscopy
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Combined theoretical and experimental investigation of gas-zeolite interaction: adsorption, separation, gas storage Methodology of Cu-zeolitic systems preparation - the study of copper ions distribution using indirect experimental techniques and probe molecules Center for biomolecules and complex molecular systems
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	58
http://linked.open...iv/tvurceVysledku	Bulánek, Roman Frýdová, Eva Koudelková, Eva Frolich, Karel
http://linked.open...ain/vavai/riv/wos	000300600500019
issn	0924-2031
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.vibspec.2011.11.010
http://localhost/t...ganizacniJednotka	25310

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