FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1981578298> ?p ?o ?g. }

• W1981578298 endingPage "3051" @default.
• W1981578298 startingPage "3043" @default.
• W1981578298 abstract "Methylviologen (MV2+) has been adsorbed in a series of zeolites including alkaline ion faujasites (HNaY, LiNaY, NaY, KNaY, RbNaY, CsNaY, and NaX), Naβ, NaMor, and NaZSM-5 by ion exchange. Extra large pore aluminosilicate MCM-41 was also used. The resulting MV2+-doped zeolites have been characterized by an array of analytical and spectroscopic techniques such as chemical analyses, X-ray photoelectron spectroscopy, thermogravimetry−differential scanning calorimetry, diffuse reflectance spectroscopy, and fluorescence, FT-IR, FT-Raman, and MAS 13C NMR spectroscopies. Influence of the confinement and nature of the charge-balancing cation on the molecular properties of MV2+ resulted in shifts of the λmax of the absorption band in the diffuse reflectance spectra from 270 to 280 nm for MV−NaX and 290 nm for MV−NaZSM-5 samples. In addition, changes of the relative intensities of the emission bands at 340 and 420 nm were also noted. The formation of the MV•+ cation radical as a persistent species by thermal treatment from the MV2+ ground state was not observed in any of the samples. In contrast, laser flash photolysis of these samples allowed in all cases the detection of MV•+ as a long-lived transient on the microsecond time scale. Formation of MV•+ was also observed by X-ray photoelectron spectroscopy. This constitutes the first firm experimental evidence that zeolites can behave as single electron donors. For MV−RbNaY and MV−CsNaY samples in outgassed sealed quartz cells, the photogenerated MV•+ is so long-lived that its diffuse reflectance spectrum and disappearance kinetics can be obtained by conventional diffuse reflectance spectroscopy. A relationship between the basic strength of the zeolite framework and the stability of photogenerated MV•+ has been established." @default.
• W1981578298 created "2016-06-24" @default.
• W1981578298 creator A5014540719 @default.
• W1981578298 creator A5016083791 @default.
• W1981578298 creator A5041532961 @default.
• W1981578298 creator A5049583674 @default.
• W1981578298 creator A5084619127 @default.
• W1981578298 date "1997-04-01" @default.
• W1981578298 modified "2023-10-17" @default.
• W1981578298 title "Intrazeolite Photochemistry. 17. Zeolites as Electron Donors: Photolysis of Methylviologen Incorporated within Zeolites" @default.
• W1981578298 cites W1572752431 @default.
• W1981578298 cites W1605982928 @default.
• W1981578298 cites W1967734646 @default.
• W1981578298 cites W1967848705 @default.
• W1981578298 cites W1969214535 @default.
• W1981578298 cites W1970680829 @default.
• W1981578298 cites W1972774067 @default.
• W1981578298 cites W1975096621 @default.
• W1981578298 cites W1976974690 @default.
• W1981578298 cites W1977004425 @default.
• W1981578298 cites W1979498105 @default.
• W1981578298 cites W1982066152 @default.
• W1981578298 cites W1982784029 @default.
• W1981578298 cites W1983357701 @default.
• W1981578298 cites W1984533804 @default.
• W1981578298 cites W1990752281 @default.
• W1981578298 cites W1991280211 @default.
• W1981578298 cites W1994496978 @default.
• W1981578298 cites W1994538624 @default.
• W1981578298 cites W1996132138 @default.
• W1981578298 cites W1996737821 @default.
• W1981578298 cites W1997010833 @default.
• W1981578298 cites W1999901992 @default.
• W1981578298 cites W2003408807 @default.
• W1981578298 cites W2003667730 @default.
• W1981578298 cites W2005410728 @default.
• W1981578298 cites W2005440454 @default.
• W1981578298 cites W2006162387 @default.
• W1981578298 cites W2008118977 @default.
• W1981578298 cites W2009971512 @default.
• W1981578298 cites W2010061659 @default.
• W1981578298 cites W2011294725 @default.
• W1981578298 cites W2012642969 @default.
• W1981578298 cites W2014912092 @default.
• W1981578298 cites W2018367353 @default.
• W1981578298 cites W2024233686 @default.
• W1981578298 cites W2030170042 @default.
• W1981578298 cites W2035121573 @default.
• W1981578298 cites W2035230265 @default.
• W1981578298 cites W2037972520 @default.
• W1981578298 cites W2039908436 @default.
• W1981578298 cites W2040677330 @default.
• W1981578298 cites W2041167712 @default.
• W1981578298 cites W2041513119 @default.
• W1981578298 cites W2043037821 @default.
• W1981578298 cites W2046782633 @default.
• W1981578298 cites W2051168692 @default.
• W1981578298 cites W2052772405 @default.
• W1981578298 cites W2054685943 @default.
• W1981578298 cites W2058410832 @default.
• W1981578298 cites W2067474285 @default.
• W1981578298 cites W2072590559 @default.
• W1981578298 cites W2075496619 @default.
• W1981578298 cites W2075995675 @default.
• W1981578298 cites W2076207935 @default.
• W1981578298 cites W2077690132 @default.
• W1981578298 cites W2078118581 @default.
• W1981578298 cites W2084395353 @default.
• W1981578298 cites W2084483202 @default.
• W1981578298 cites W2086792467 @default.
• W1981578298 cites W2087134686 @default.
• W1981578298 cites W2089862050 @default.
• W1981578298 cites W2091231792 @default.
• W1981578298 cites W2091563407 @default.
• W1981578298 cites W2093957202 @default.
• W1981578298 cites W2100593999 @default.
• W1981578298 cites W2102953474 @default.
• W1981578298 cites W2108504105 @default.
• W1981578298 cites W2167092049 @default.
• W1981578298 cites W2317699909 @default.
• W1981578298 cites W2498401753 @default.
• W1981578298 cites W2951914843 @default.
• W1981578298 cites W2952158303 @default.
• W1981578298 cites W4232076312 @default.
• W1981578298 cites W6482013 @default.
• W1981578298 doi "https://doi.org/10.1021/jp9628850" @default.
• W1981578298 hasPublicationYear "1997" @default.
• W1981578298 type Work @default.
• W1981578298 sameAs 1981578298 @default.
• W1981578298 citedByCount "120" @default.
• W1981578298 countsByYear W19815782982012 @default.
• W1981578298 countsByYear W19815782982013 @default.
• W1981578298 countsByYear W19815782982014 @default.
• W1981578298 countsByYear W19815782982015 @default.
• W1981578298 countsByYear W19815782982016 @default.
• W1981578298 countsByYear W19815782982017 @default.
• W1981578298 countsByYear W19815782982018 @default.
• W1981578298 countsByYear W19815782982019 @default.

• next