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Volumn 129, Issue 49, 2007, Pages 15311-15318

Gas-phase models for catalysis: Alkane activation and olefin epoxidation by the triatomic cation Ag2O+

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL ACTIVATION; ELECTROSPRAY IONIZATION; EPOXIDATION; OLEFINS; OXYGENATION; PARAFFINS; POSITIVE IONS; SILVER COMPOUNDS;

EID: 37049012491     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja075628p     Document Type: Article
Times cited : (63)

References (85)
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    • 2 appears rather unexpected (see text). In fact, the mass resolution in these previous measurements might have been too low for definitive conclusions. See: Socaciu, L. D.; Hagen, J.; Heiz, U.; Bernhardt, T. M.; Leisner, T.; Wöste, L. Chem. Phys. Lett. 2001, 340, 282.
    • 2 appears rather unexpected (see text). In fact, the mass resolution in these previous measurements might have been too low for definitive conclusions. See: Socaciu, L. D.; Hagen, J.; Heiz, U.; Bernhardt, T. M.; Leisner, T.; Wöste, L. Chem. Phys. Lett. 2001, 340, 282.
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    • Calculated using the Chemputer made by M. Winter, University of Sheffield; see: http://winter.group.shef.ac.uk/chemputer/.
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    • In ESI, the ionization conditions can be varied systematically by adjusting the accelerating potentials in the medium-pressure section of the ESI source (ref 8). Often, increase of the so-called cone voltage leads to harder ionization conditions via multiple energizing conditions, but the details may differ for ESI sources from different manufacturers.
    • In ESI, the ionization conditions can be varied systematically by adjusting the accelerating potentials in the medium-pressure section of the ESI source (ref 8). Often, increase of the so-called cone voltage leads to harder ionization conditions via multiple energizing conditions, but the details may differ for ESI sources from different manufacturers.
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    • For previous examples of such reactions with various metals, see: (a) Cheng, Z. L.; Siu, K. W. M.; Guevremont, R.; Berman, S. S. Org. Mass Spectrom. 1992, 27, 1370.
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    • + was performed in that work, see: Flurer, R. A.; Busch, K. L. J. Am. Chem. Soc. 1991, 113, 3656.
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    • + clusters, loss of atomic oxygen was also observed as a favorable channel; however, the clusters were not mass selected, and expulsion of neutral AgO might thus have escaped detection (ref 26). Also in the accompanying theoretical study, loss of neutral AgO was not considered.
    • + clusters, loss of atomic oxygen was also observed as a favorable channel; however, the clusters were not mass selected, and expulsion of neutral AgO might thus have escaped detection (ref 26). Also in the accompanying theoretical study, loss of neutral AgO was not considered.
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    • 2), see: Li, L.; Hackett, P. A.; Rayner, D. M. J. Chem. Phys. 1993, 99, 2583.
    • 2), see: Li, L.; Hackett, P. A.; Rayner, D. M. J. Chem. Phys. 1993, 99, 2583.
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    • 3 can be considered to occur as continuously endothermic processes.
    • 3 can be considered to occur as continuously endothermic processes.
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    • + as a product was observed even in the absence of any reaction partner and is attributed to hydrocarbon contaminants present in the background of the high-vacuum apparatus. All data given in the text and the tables are already corrected for this background reactivity.
    • + as a product was observed even in the absence of any reaction partner and is attributed to hydrocarbon contaminants present in the background of the high-vacuum apparatus. All data given in the text and the tables are already corrected for this background reactivity.
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    • For an instructive discussion, see: Schreiner, P. Angew. Chem., Int. Ed. 2007, 46, 4217.
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    • + isomers, see: Schwarz, J.; Wesendrup, R.; Schröder, D.; Schwarz, H. Chem. Ber. 1996, 129, 1463.
    • + isomers, see: Schwarz, J.; Wesendrup, R.; Schröder, D.; Schwarz, H. Chem. Ber. 1996, 129, 1463.
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    • For an example of a rearrangement of a gaseous transition-metal complex induced by a single neutral molecule, see: Becker, H, Schröder, D, Zummack, W, Schwarz, H. J. Am. Chem. Soc. 1994, 116, 1096
    • For an example of a rearrangement of a gaseous transition-metal complex induced by a single neutral molecule, see: Becker, H.; Schröder, D.; Zummack, W.; Schwarz, H. J. Am. Chem. Soc. 1994, 116, 1096.
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    • In a neutral-loss (or -gain) scan, two mass analyzers are scanned simultaneously with a fixed mass difference (Δm) while the reaction of interest is allowed to occur in between them. For ethene as a neutral reagent and Δm, 16, only those ions are detected which can transfer an oxygen atom to the substrate. Also see: ref 10a
    • In a neutral-loss (or -gain) scan, two mass analyzers are scanned simultaneously with a fixed mass difference (Δm) while the reaction of interest is allowed to occur in between them. For ethene as a neutral reagent and Δm = -16, only those ions are detected which can transfer an oxygen atom to the substrate. Also see: ref 10a.
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    • For gas-phase experiments with similar mixed bimetallic clusters, see: a
    • For gas-phase experiments with similar mixed bimetallic clusters, see: (a) Koszinowski, K.; Schröder, D.; Schwarz, H. J. Am. Chem. Soc. 2003, 125, 3676.
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    • Koszinowski, K.1    Schröder, D.2    Schwarz, H.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.