Cavity ring down laser spectroscopy of the (B)over-tilde2Σ+-(X)over-tilde2Σ+ transition of CaCCH

被引：6

作者：

Tokaryk, D. W.

Adam, A. G.

Slaney, M. E.

机构：

[1] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada

[2] Univ New Brunswick, Ctr Laser Atom & Mol Sci, Fredericton, NB E3B 5A3, Canada

[3] Univ New Brunswick, Dept Chem, Fredericton, NB E3B 6E2, Canada

[4] Univ New Brunswick, Ctr Laser Atom & Mol Sci, Fredericton, NB E3B 6E2, Canada

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 433卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2006.11.053

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：

While both the (A) over tilde (2)Pi-(X) over tilde (2)Sigma(+) and (C) over tilde (2)Delta-(X) over tilde (2)Sigma(+) transitions of CaCCH have been previously reported in laser-induced fluorescence experiments, the (B) over tilde (2)Sigma(+)-(X) over tilde (2)Sigma(+) transition has remained undetected by this technique. We have applied cavity ring down laser spectroscopy to a pulsed molecular jet containing CaCCH, and have observed an absorption feature that does not fluoresce upon excitation, consistent with the (B) over tilde (2)Sigma(+)-(X) over tilde Sigma(+) transition. (c) 2006 Elsevier B.V. All rights reserved.

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页码：264 / 267

页数：4

相关论文

共 12 条

[1] ROTATIONAL ANALYSIS OF THE A2-PI-X2-SIGMA+ TRANSITION OF CALCIUM MONOACETYLIDE, CACCH [J].

BOPEGEDERA, AMRP ;

BRAZIER, CR ;

BERNATH, PF .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1988, 129 (02) :268-275

[2] LASER SPECTROSCOPY OF CALCIUM AND STRONTIUM MONOACETYLIDES [J].

BOPEGEDERA, AMRP ;

BRAZIER, CR ;

BERNATH, PF .

CHEMICAL PHYSICS LETTERS, 1987, 136 (01) :97-100

[3] Laser spectroscopy of metallic free radicals:: the observation of the (C)over-tilde-(X)over-tilde vibronically allowed electronic transition for Ca-OCH3, Ca-OC2H5 and Ca-CCH [J].

Elhanine, M ;

Lawruszczuk, R ;

Soep, B .

CHEMICAL PHYSICS LETTERS, 1998, 288 (5-6) :785-792

[4] Main group metal-ligand interactions in small molecules: new insights from laser spectroscopy [J].

Ellis, AM .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 2001, 20 (04) :551-590

[5] The first excited Ca-C-C bending vibration levels in the (A)over-tilde(2)Pi and (X)over-tilde(2)Sigma(+) states of the CaCCH radical: The Renner-Teller effect and K-type resonance [J].

Li, MG ;

Coxon, JA .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1996, 180 (02) :287-297

[6] The CaCCH A(2)Pi-X-2 Sigma(+) 5(2)(2) and 5(2)(0) bands studied by high resolution spectroscopy: The Ca-C-C bending vibration and vibronic interaction [J].

Li, MG ;

Coxon, JA .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1997, 183 (02) :250-262

[7] The C-C-H bending vibration mode (ν4) in the electronic (A)over-tilde2II and (X)over-tilde2Σ+ states of the CaCCH radical [J].

Li, MG ;

Coxon, JA .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1999, 196 (01) :14-19

[8] The nu(3) and nu(3)+nu(5) vibration levels in the CaCCH (X)over-tilde(2)Sigma(+) state [J].

Li, MG ;

Coxon, JA .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1997, 184 (02) :395-400

[9] Laser spectroscopy of the (A)over-tilde(2)Pi-(X)over-tilde(2)Sigma(+) 0-0 band of the CaCCH radical [J].

Li, MG ;

Coxon, JA .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1996, 176 (01) :206-210

[10] A SUPERSONIC MOLECULAR-BEAM OPTICAL STARK STUDY OF CAOH AND SROH [J].

STEIMLE, TC ;

FLETCHER, DA ;

JUNG, KY ;

SCURLOCK, CT .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (04) :2556-2564