Infrared spectra of the polar and nonpolar N2O dimers in the 1280 cm-1 region of the ν3 fundamental

被引：51

作者：

Dehghany, M. ^{[2
]}

Afshari, Mahin ^{[2
]}

Thompson, R. I. ^{[2
]}

Moazzen-Ahmadi, N. ^{[2
]}

McKellar, A. R. W. ^{[1
]}

机构：

[1] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada

[2] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2008年 / 252卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Dimer; Nitrous oxide; Infrared; Supersonic jet;

D O I：

10.1016/j.jms.2008.05.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The high-resolution infrared spectrum of the polar N2O dimer has been observed in the region of the N2O nu(3) fundamental (similar to 1280 cm(-1)) using a tunable diode laser to probe a pulsed supersonic slit jet. About 120 rotational transitions were assigned in terms of an a/b hybrid band of a planar asymmetric top molecule with a slipped parallel structure. The vibrational origin was determined to be 1290.21 cm(-1), showing a blue shift of 5.31 cm(-1) with respect to the monomer band origin. In addition, the spectrum of the nonpolar isomer at 1279.71 cm(-1) has been remeasured and analyzed in improved detail. Small but widespread perturbations are noted in this band, which appear somewhat similar to larger effects observed previously in the nu(1) + nu(3) region for nonpolar (N2O)(2). (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1 / 4

页数：4

共 11 条

[1] Isotope effects in the infrared spectra of OCS-He complexes and clusters [J].

Abusara, Z. ;

Borvayeh, L. ;

Moazzen-Ahmadi, N. ;

McKellar, A. R. W. .

JOURNAL OF CHEMICAL PHYSICS, 2006, 125 (14)

[2] Nitrous oxide dimer: Observation of a new polar isomer [J].

Dehghani, M. ;

Afshari, Mahin ;

Abusara, Z. ;

Moazzen-Ahmadi, N. ;

McKellar, A. R. W. .

JOURNAL OF CHEMICAL PHYSICS, 2007, 126 (16)

[3] Measurement and revised analysis of the torsional combination band of the nonpolar N2O dimer at 2249 cm-1 [J].

Dehghany, M. ;

Afshari, Mahin ;

Moazzen-Ahmadi, N. ;

McKellar, A. R. W. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2008, 10 (12) :1658-1661

[4] Isotope effects in the infrared spectra of the polar and nonpolar isomers of N2O dimer [J].

Dehghany, M. ;

Afshari, Mahin ;

Abusara, Z. ;

Van Eck, C. ;

Moazzen-Ahmadi, N. .

JOURNAL OF MOLECULAR SPECTROSCOPY, 2008, 247 (02) :123-127

[5] THE STRUCTURE OF THE NITROUS-OXIDE DIMER FROM SUB-DOPPLER RESOLUTION INFRARED-SPECTROSCOPY [J].

HUANG, ZS ;

MILLER, RE .

JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (09) :5408-5416

[6] The structure of nitrous oxide tetramer from near infrared laser spectroscopy [J].

Miller, RE ;

Pedersen, L .

CHEMICAL PHYSICS LETTERS, 1997, 275 (3-4) :307-313

[7] The infrared spectrum and structure of the nitrous oxide trimer [J].

Miller, RE ;

Pedersen, L .

JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (02) :436-443

[8] FREE-JET INFRARED-ABSORPTION SPECTROSCOPY OF THE (N2O)2 VANDERWAALS COMPLEX IN THE 8 MU-M REGION [J].

OHSHIMA, Y ;

MATSUMOTO, Y ;

TAKAMI, M ;

KUCHITSU, K .

CHEMICAL PHYSICS LETTERS, 1988, 152 (4-5) :294-298

[9]

Qian HB, 1997, MOL PHYS, V91, P689, DOI 10.1080/00268979709482759

[10] Microwave spectrum and structure of the polar N2O dimer [J].

Walker, Nicholas R. ;

Minei, Andrea J. ;

Novick, Stewart E. ;

Legon, Anthony C. .

JOURNAL OF MOLECULAR SPECTROSCOPY, 2008, 251 (1-2) :153-158

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