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RENNER-TELLER, SPIN ORBIT AND FERMI-RESONANCE INTERACTIONS IN X2-PI NCS INVESTIGATED BY LIF SPECTROSCOPY
被引:57
作者
:
NORTHRUP, FJ
论文数:
0
引用数:
0
h-index:
0
机构:
Department of Chemistry, Brookhaven National Laboratory, Upton, NY
NORTHRUP, FJ
SEARS, TJ
论文数:
0
引用数:
0
h-index:
0
机构:
Department of Chemistry, Brookhaven National Laboratory, Upton, NY
SEARS, TJ
机构
:
[1]
Department of Chemistry, Brookhaven National Laboratory, Upton, NY
来源
:
MOLECULAR PHYSICS
|
1990年
/ 71卷
/ 01期
关键词
:
D O I
:
10.1080/00268979000101631
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
:
The electronic spectrum of the NCS radical is obtained following UV excimer-laser photolysis of C2H5NCS in a large excess of inert gas in a supersonic free jet expansion. The spectrum is complicated by the presence of Renner-Teller and spin-orbit coupling and a Fermi resonance between the doubly excited bending vibration and v3, the CS stretching vibration. Bending vibronic level structure in the X2π ground state of the radical is determined from a variety of laser-induced-fluorescence techniques, including stimulated-emission pumping. These energy levels are used to determine vibronic-coupling parameters for the radical. Coupling between close-lying bending levels with different v2 and K (= ∆ + I) is found to be important because some of these levels are close together in NCS owing to the very large spin-orbit coupling. A parameter representing this effect is related to the dipolar contribution ε1 to the Renner-Teller coupling parameter ε by applying perturbation theory to a simple model involving the X2π and B2Σ+ electronic states of NCS. This procedure results in an estimate for ε1 that agrees approximately with that determined from the vibronic-coupling parameter gK, assuming the same model for the interacting electronic states. © Taylor & Francis Ltd.
引用
收藏
页码:45 / 64
页数:20
相关论文
共 27 条
[1]
REINVESTIGATION OF A SIGMA-2+-X PI-2I BAND SYSTEM OF NCO
[J].
BOLMAN, PSH
论文数:
0
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0
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0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
BOLMAN, PSH
;
BROWN, JM
论文数:
0
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0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
BROWN, JM
;
CARRINGTON, A
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
CARRINGTON, A
;
KOPP, I
论文数:
0
引用数:
0
h-index:
0
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UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
KOPP, I
;
RAMSAY, DA
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0
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UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
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UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
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UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
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UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
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FIELD, D
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UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
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0
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UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
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UNIV CALIF,LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544
UNIV CALIF,LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544
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.
MOLECULAR PHYSICS,
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JUNGEN, C
.
MOLECULAR PHYSICS,
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:383
-407
←
1
2
3
→
共 27 条
[1]
REINVESTIGATION OF A SIGMA-2+-X PI-2I BAND SYSTEM OF NCO
[J].
BOLMAN, PSH
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
BOLMAN, PSH
;
BROWN, JM
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
BROWN, JM
;
CARRINGTON, A
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
CARRINGTON, A
;
KOPP, I
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
KOPP, I
;
RAMSAY, DA
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO9 5NH, ENGLAND
RAMSAY, DA
.
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES,
1975,
343
(1632)
:17
-+
[2]
RENNER-TELLER EFFECT AND VIBRONICALLY INDUCED BANDS IN ELECTRONIC-SPECTRUM OF NCO
[J].
BOLMAN, PSH
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
BOLMAN, PSH
;
BROWN, JM
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,ENGLAND
BROWN, JM
.
CHEMICAL PHYSICS LETTERS,
1973,
21
(02)
:213
-216
[3]
EFFECTIVE HAMILTONIAN FOR RENNER-TELLER EFFECT
[J].
BROWN, JM
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HAMPSHIRE,ENGLAND
UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HAMPSHIRE,ENGLAND
BROWN, JM
.
JOURNAL OF MOLECULAR SPECTROSCOPY,
1977,
68
(03)
:412
-422
[4]
ANHARMONIC CORRECTIONS FOR LINEAR TRIATOMIC-MOLECULES SUBJECT TO THE RENNER-TELLER EFFECT
[J].
BROWN, JM
论文数:
0
引用数:
0
h-index:
0
BROWN, JM
;
JORGENSEN, F
论文数:
0
引用数:
0
h-index:
0
JORGENSEN, F
.
MOLECULAR PHYSICS,
1982,
47
(05)
:1065
-1086
[5]
BROWN JM, 1983, ADV CHEM PHYSICS, V52
[6]
DYE-LASER SPECTROSCOPY OF BO2 - FERMI RESONANCE BETWEEN 100 AND 020 LEVELS OF 2PIG GROUND-STATE
[J].
DIXON, RN
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
DIXON, RN
;
FIELD, D
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
FIELD, D
;
NOBLE, M
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,GLOUCESTERSHIRE,ENGLAND
NOBLE, M
.
CHEMICAL PHYSICS LETTERS,
1977,
50
(01)
:1
-5
[7]
ELECTRONIC ABSORPTION SPECTRUM OF NCS FREE RADICAL
[J].
DIXON, RN
论文数:
0
引用数:
0
h-index:
0
DIXON, RN
;
RAMSAY, DA
论文数:
0
引用数:
0
h-index:
0
RAMSAY, DA
.
CANADIAN JOURNAL OF PHYSICS,
1968,
46
(23)
:2619
-&
[8]
DELTAV =0 AND +1 SEQUENCE BANDS OF CN VIOLET SYSTEM OBSERVED DURING FLASH-PHOTOLYSIS OF BRCN
[J].
ENGLEMAN, R
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV CALIF,LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544
UNIV CALIF,LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544
ENGLEMAN, R
.
JOURNAL OF MOLECULAR SPECTROSCOPY,
1974,
49
(01)
:106
-116
[9]
MEASUREMENT OF THE RENNER-TELLER EFFECT IN X2-PI-CO2+ BY DIODE-LASER ABSORPTION
[J].
FRYE, JM
论文数:
0
引用数:
0
h-index:
0
FRYE, JM
;
SEARS, TJ
论文数:
0
引用数:
0
h-index:
0
SEARS, TJ
.
MOLECULAR PHYSICS,
1987,
62
(04)
:919
-937
[10]
ORBITAL ANGULAR-MOMENTUM IN TRIATOMIC-MOLECULES .5. VIBRONIC CORRECTIONS AND ANHARMONIC EFFECTS IN LINEAR-MOLECULES
[J].
GAUYACQ, D
论文数:
0
引用数:
0
h-index:
0
GAUYACQ, D
;
JUNGEN, C
论文数:
0
引用数:
0
h-index:
0
JUNGEN, C
.
MOLECULAR PHYSICS,
1980,
41
(02)
:383
-407
←
1
2
3
→