Millimeter-wave spectroscopy of HCCCP in excited vibrational states

被引：14

作者：

Bizzocchi, L ^{[1
]}

Degli Esposti, C ^{[1
]}

Dore, L ^{[1
]}

Cazzoli, G ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2001年 / 205卷 / 01期

关键词：

rotational spectroscopy; phosphabutadiyne; HC3P; excited states; resonances; pyrolysis;

D O I：

10.1006/jmsp.2000.8248

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 rotational spectra of the unstable HCCCP molecule have been investigated in the millimeter-wave region for the main excited vibrational states which lie below 1000 cm(-1), namely nu (4)(C-C stretch), nu (5) (HCC bend), nu (6) (CCC bend), nu (7) (CCP bend), 2 nu (6), 2 nu (7), 3 nu (7), 4 nu (7), nu (5) + nu (7), and nu (6) + nu (7). l-type resonance effects have been taken into account in the analysis of the spectra, so that the values of the anharmonicity constants x(L(66)), x(L(77)), x(L(57)), and x(L(67)), could be determined. The anharmonic interactions which couple the nu (4) state with nu (6) + nu (7), 2 nu (6), and 4 nu (7) have been also considered, yielding the unperturbed value of the alpha (4) vibration-rotation coupling constant. (C) 2001 Academic Press.

引用

页码：164 / 172

页数：9

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