Resonance Raman spectroscopy of matrix-isolated mass-selected Fe3 and Ag3

被引：39

作者：

Haslett, TL ^{[1
]}

Bosnick, KA ^{[1
]}

Fedrigo, S ^{[1
]}

Moskovits, M ^{[1
]}

机构：

[1] Univ Toronto, Dept Chem & Photon Res Ontario, Toronto, ON M5S 3H6, Canada

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 14期

关键词：

D O I：

10.1063/1.480014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Raman spectroscopy of matrix-isolated, mass-selected Fe-3 and Ag-3 reveal that both are Jahn-Teller distorted triangular molecules. The observed spectrum of Ag-3 can be accounted for adequately using an approximate Jahn-Teller potential truncated at the quadratic term [Wedum , J. Chem. Phys. 100, 6312 (1994)] with parameters omega(a)=119 cm(-1), omega(e)=99 cm(-1), k=1.92, and g=0.29. For Fe-3, the spectrum is more complex, most likely due to the fact that spin-orbit coupling plays an important role in this high-spin cluster in addition to the quadratic Jahn-Teller terms. The overall pattern of the spectrum suggests that in Fe-3 the Jahn-Teller distortion is likely small, and a peak at 249 cm(-1) is tentatively assigned to its symmetric stretch. (C) 1999 American Institute of Physics. [S0021-9606(99)01638-4].

引用

页码：6456 / 6461

页数：6

共 52 条

[1] STRUCTURES, BINDING-ENERGIES, AND CHARGE-DISTRIBUTIONS FOR 2 TO 6 ATOM TI, CR, FE, AND NI CLUSTERS AND THEIR RELATIONSHIP TO NUCLEATION AND CLUSTER CATALYSIS [J].

ANDERSON, AB .

JOURNAL OF CHEMICAL PHYSICS, 1976, 64 (10) :4046-4055

[2] Magnetic properties of Ni and Fe clusters: A tight binding molecular dynamics study [J].

Andriotis, AN ;

Lathiotakis, N ;

Menon, M .

CHEMICAL PHYSICS LETTERS, 1996, 260 (1-2) :15-20

[3] ELECTRONIC STATES AND POTENTIAL-ENERGY SURFACES OF GOLD AND SILVER TRIMERS [J].

BALASUBRAMANIAN, K ;

LIAO, MZ .

CHEMICAL PHYSICS, 1988, 127 (1-3) :313-324

[4] STRUCTURE AND SPIN IN SMALL IRON CLUSTERS [J].

BALLONE, P ;

JONES, RO .

CHEMICAL PHYSICS LETTERS, 1995, 233 (5-6) :632-638

[5] Quantitative insights about molecules exhibiting Jahn-Teller and related effects [J].

Barckholtz, TA ;

Miller, TA .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 1998, 17 (04) :435-524

[6] ELECTRONIC AND GEOMETRIC STRUCTURAL-PROPERTIES OF THE BARE AG3 CLUSTER AND IONS [J].

BASCH, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (16) :4657-4663

[7] GUEST-HOST INTERACTION AND PHOTOCHEMICAL TRANSFORMATION OF SILVER PARTICLES ISOLATED IN RARE-GAS MATRICES [J].

BECHTHOLD, PS ;

KETTLER, U ;

SCHOBER, HR ;

KRASSER, W .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1986, 3 (2-3) :263-270

[8] THEORETICAL-STUDY OF THE STRUCTURES AND STABILITIES OF IRON CLUSTERS [J].

BESLEY, NA ;

JOHNSTON, RL ;

STACE, AJ ;

UPPENBRINK, J .

JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 1995, 341 :75-90

[9] THE RESONANCE RAMAN AND VISIBLE ABSORBANCE SPECTRA OF MATRIX-ISOLATED MN-2 AND MN-3 [J].

BIER, KD ;

HASLETT, TL ;

KIRKWOOD, AD ;

MOSKOVITS, M .

JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (01) :6-12

[10] RESONANT 2-PHOTON IONIZATION SPECTROSCOPY OF JET-COOLED AU3 [J].

BISHEA, GA ;

MORSE, MD .

JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (12) :8779-8792

← 1 2 3 4 5 6 →