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Volumn 304, Issue 5674, 2004, Pages 1134-1137

Infrared spectroscopic evidence for protonated water clusters forming nanoscale cages

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOLS; HYDROGEN BONDS; INFRARED SPECTROSCOPY; SPECTRUM ANALYZERS; STRUCTURAL ANALYSIS;

EID: 2442641397     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1096037     Document Type: Article
Times cited : (492)

References (24)
  • 12
    • 0001724970 scopus 로고    scopus 로고
    • K. Liu et al., Nature 381, 501 (1996).
    • (1996) Nature , vol.381 , pp. 501
    • Liu, K.1
  • 15
    • 2442694787 scopus 로고    scopus 로고
    • note
    • Protonated water clusters were produced by a photoassisted discharge of water vapor seeded in Ne (total pressure 3 atm). The gas mixture was expanded from a pulsed supersonic valve through a channel nozzle (23). The channel was equipped with a wire electrode at its sidewall, and a dc voltage of -300 V relative to the channel was applied to the electrode. The discharge in the channel was triggered by irradiation of the electrode surfaces with a laser pulse (355 nm, ∼5 mJ/pulse), which was synchronized with the pulsed valve operation. The protonated water cluster cations were cooled on expansion from the channel. The size distribution of the produced cluster cations was similar to those reported so far (1), and the magic number at n = 21 was also seen.
  • 16
    • 2442669758 scopus 로고    scopus 로고
    • note
    • We observed that 3 to 10% of the parent-cluster cations spontaneously dissociate after passing through the first quadrupole mass filter. Evaporation of one water molecule was the unique dissociation pass.
  • 20
  • 24
    • 2442702300 scopus 로고    scopus 로고
    • note
    • We are grateful to H. Ishikawa and T. Maeyama for useful discussions and to H. Kawamata for his contribution to the IR laser system construction.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.