Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K.

Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K. Research Abstract Details 

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Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K. Abstract Text:

Susumu Kuma,Haruka Goto,Mikhail N Slipchenko,Andrey F Vilesov,Alexander Khramov,Takamasa Momose,Susumu Kuma,Haruka Goto,Mikhail N Slipchenko,Andrey F Vilesov,Alexander Khramov,Takamasa Momose,Susumu Kuma,Haruka Goto,Mikhail N Slipchenko,Andrey F Vilesov,Alexander Khramov,Takamasa Momose,

The formation of Ar and H(2) clusters, having up to 900 particles in helium droplets, has been studied via laser induced fluorescence of attached Mg-phthalocyanine (Mg-Pc) molecules. In the experiments, one Mg-Pc molecule in average was added to each He droplet either before or after the cluster species, and the shift of the spectrum of the Mg-Pc molecules was studied as a function of the cluster size. For Ar clusters, about a factor of 2 smaller matrix shift was observed for the late pickup of the Mg-Pc molecules as compared with the prior pickup, indicating that in the former case, the Mg-Pc molecules reside on the surface of the preformed Ar clusters. On the other hand, the spectra of the Mg-Pc molecules attached to H(2) clusters are independent of the pickup order, which is consistent with Mg-Pc molecules residing near the center of the H(2) clusters in both cases. Therefore H(2) clusters remain fluxional in helium droplets at T=0.38 K. No significant differences in the spectra were observed between the para-H(2) and ortho-H(2) clusters.

Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K. Publishing Authors By Initials

S Kuma,H Goto,MN Slipchenko,AF Vilesov,A Khramov,T Momose,S Kuma,H Goto,MN Slipchenko,AF Vilesov,A Khramov,T Momose,S Kuma,H Goto,MN Slipchenko,AF Vilesov,A Khramov,T Momose,

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Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Journal of chemical physics

VOLUME: 127

Page Numbers: 214301

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ISSN: 0021-9606

DAY: 7

MONTH: Dec

YEAR: 2007

Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K. Information

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LANGUAGE: eng

NlmUniqueID: 375360

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Grant and Affiliation Information for Laser induced fluorescence of Mg-phthalocyanine in He droplets: Evidence for fluxionality of large H(2) clusters at 0.38 K.

AFFILIATION: Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.

Country: United States

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MEDLINETA: J Chem Phys

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