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Volumn 47, Issue 51, 2008, Pages 9927-9932

Heterogeneous catalysis through microcontact printing

Author keywords

Azide alkyne cycloaddition; Heterogeneous catalysis; Microcontact printing; StampCat; Surface chemistry

Indexed keywords

ACETYLENE; CATALYSIS; COPPER; CYCLOADDITION; ELECTRONIC EQUIPMENT MANUFACTURE; PRINTING; SURFACE CHEMISTRY; SURFACE REACTIONS;

EID: 57549102986     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200803480     Document Type: Article
Times cited : (48)

References (65)
  • 3
  • 43
    • 57549111674 scopus 로고    scopus 로고
    • The reaction was performed in an NMR tube using deuterated DMF solvent such that reaction conversion could be determined simply by comparing the integration of the signals due to the appearing 1,2,3-triazole product with those due to disappearing 3 in the 1H NMR spectrum
    • 1H NMR spectrum.
  • 44
    • 57549105690 scopus 로고    scopus 로고
    • The mixed monolayer surfaces were reported to contain 45% azide moieties when deposited from a 1:1 molar ratio solution of azidoundecanethiol and octanethiol. See Ref. [14b].
    • The mixed monolayer surfaces were reported to contain 45% azide moieties when deposited from a 1:1 molar ratio solution of azidoundecanethiol and octanethiol. See Ref. [14b].
  • 58
    • 57549119320 scopus 로고    scopus 로고
    • While the azide function is the limiting reagent for surface-based reactions, it begins the reaction in vast excess at the surface in comparison to the added alkyne and catalyst. Throughout the reaction, the azide moieties are depleted while excess of the alkyne molecules diffuse freely, presumably maintaining a constant concentration. While these concentration effects are difficult to mimic in traditional homogeneous reaction strategies, the decreased reagent degrees of freedom affecting the potential energy landscape for the surface reactions in comparison to solution reactions introduces additional significant differences. However, the flooding conditions in alkyne were adapted as a reasonably close representation of the concentration conditions at the surface
    • While the azide function is the limiting reagent for surface-based reactions, it begins the reaction in vast excess at the surface in comparison to the added alkyne and catalyst. Throughout the reaction, the azide moieties are depleted while excess of the alkyne molecules diffuse freely, presumably maintaining a constant concentration. While these concentration effects are difficult to mimic in traditional homogeneous reaction strategies, the decreased reagent degrees of freedom affecting the potential energy landscape for the surface reactions in comparison to solution reactions introduces additional significant differences. However, the flooding conditions in alkyne were adapted as a reasonably close representation of the concentration conditions at the surface.
  • 61
    • 57549090441 scopus 로고    scopus 로고
    • A kinetic plot similar to Figure 4b showing the full reaction time for the Solution-Surface reaction is included in the Supporting Information.
    • A kinetic plot similar to Figure 4b showing the full reaction time for the Solution-Surface reaction is included in the Supporting Information.
  • 64
    • 57549093836 scopus 로고    scopus 로고
    • A freely diffusing particle will move about 1 micrometer in 1 millisecond
    • A freely diffusing particle will move about 1 micrometer in 1 millisecond.
  • 65
    • 57549113897 scopus 로고    scopus 로고
    • The resolution achieved using the Reagent-Stamping protocol was similar to that of traditional microcontact printing for spatially selective reactions see refs, 8-10
    • The resolution achieved using the Reagent-Stamping protocol was similar to that of traditional microcontact printing for spatially selective reactions (see refs. [8-10]).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.