ROTATIONALLY RESOLVED SPECTROSCOPY OF SF6 IN LIQUID-HELIUM CLUSTERS - A MOLECULAR PROBE OF CLUSTER TEMPERATURE

被引：532

作者：

HARTMANN, M ^{[1
]}

MILLER, RE ^{[1
]}

TOENNIES, JP ^{[1
]}

VILESOV, A ^{[1
]}

机构：

[1] UNIV N CAROLINA, DEPT CHEM, CHAPEL HILL, NC 27599 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.75.1566

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A rotationally resolved infrared spectrum has been obtained for SF6 molecules captured inside of helium clusters of approximately 4000 atoms. The spectrum is interpreted in terms of a spherical top Hamiltonian, although the resulting rotational constant is considerably smaller than that of free SF6. This can be attributed to the interaction between the molecule and the surrounding helium liquid. The results indicate that the SF6 is located inside the helium cluster and a fit to the spectrum yields a rotational temperatures for the perturbed SF6 of 0.37 +/- 0.05 K.

引用

页码：1566 / 1569

页数：4

共 26 条

[1] MOLECULES IN HELIUM CLUSTERS - SF6HEN [J].

BARNETT, RN ;

WHALEY, KB .

JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (12) :9730-9744

[2] VIBRATION-ROTATION MOLECULAR-CONSTANTS FOR THE GROUND AND (NU-3=1) STATES OF SF-32(6) FROM SATURATED ABSORPTION-SPECTROSCOPY [J].

BOBIN, B ;

BORDE, CJ ;

BORDE, J ;

BREANT, C .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1987, 121 (01) :91-127

[3] DENSITY OF STATES AND EVAPORATION RATE OF HELIUM CLUSTERS [J].

BRINK, DM ;

STRINGARI, S .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1990, 15 (03) :257-263

[4] MASS-SPECTRA AND TIME-OF-FLIGHT DISTRIBUTIONS OF HELIUM CLUSTER BEAMS [J].

BUCHENAU, H ;

KNUTH, EL ;

NORTHBY, J ;

TOENNIES, JP ;

WINKLER, C .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (11) :6875-6889

[5]

DALFOVO E, 1994, Z PHYS D, V29, P61

[6] HIGH-RESOLUTION INFRARED-SPECTROSCOPY OF SF6 EMBEDDED IN HE CLUSTERS [J].

FROCHTENICHT, R ;

TOENNIES, JP ;

VILESOV, A .

CHEMICAL PHYSICS LETTERS, 1994, 229 (1-2) :1-7

[7] INFRARED-SPECTROSCOPY AT THE SURFACE OF CLUSTERS - SF6 ON AR [J].

GOUGH, TE ;

MENGEL, M ;

ROWNTREE, PA ;

SCOLES, G .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (10) :4958-4961

[8] VIBRATIONAL SPECTROSCOPY OF SULFUR-HEXAFLUORIDE ATTACHED TO HELIUM CLUSTERS [J].

GOYAL, S ;

SCHUTT, DL ;

SCOLES, G .

PHYSICAL REVIEW LETTERS, 1992, 69 (06) :933-936

[9] INFRARED-SPECTROSCOPY IN HIGHLY QUANTUM MATRICES - VIBRATIONAL-SPECTRUM OF (SF6)N=1,2 ATTACHED TO HELIUM CLUSTERS [J].

GOYAL, S ;

SCHUTT, DL ;

SCOLES, G .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (10) :2236-2245

[10] METASTABLE EXCITATIONS OF LARGE CLUSTERS OF HE-3, HE-4 OR NE ATOMS [J].

GSPANN, J ;

VOLLMAR, H .

JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (04) :1657-1664

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