The HeI2(ion-pair states) van der Waals complexes

被引：10

作者：

Baturo, V. V. ^{[1
]}

Lukashov, S. S. ^{[1
]}

Poretsky, S. A. ^{[1
]}

Pravilov, A. M. ^{[1
]}

Zhironkin, A. I. ^{[1
]}

机构：

[1] St Petersburg State Univ, Dept Phys, SPbSU, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

CHEMICAL PHYSICS LETTERS | 2016年 / 662卷

关键词：

ION-PAIR STATES; NONADIABATIC TRANSITIONS; HEI2; COMPLEX; GROUND-STATE; DYNAMICS; MOLECULES; IODINE; AR-CENTER-DOT-CENTER-DOT-CENTER-DOT-I-2; AR;

D O I：

10.1016/j.cplett.2016.09.021

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 T-shaped HeI2(E0(g)(+)) van der Waals complexes populated in the HeI2(E,v(E) = 0-2,n(E) = 0 <- B,19, n(B) = 0 <- X,0,n(X)) excitation pathway have been studied. Analysis of the luminescence excitation spectra as well as the I-2(E0(g)(+) -> B0(u)(+), D0(u)(+) -> X0(g)(+), and D'2(g) -> A'2(u)) luminescence, spectra themselves has been carried out. It has been shown that the I-2(D -> X, and D' -> A') luminescence is due to HeI2(E <- B) transitions with subsequent electronic predissociation. We have determined dissociation energies of the HeI2(E,v(E) = 0-2) complexes, vibrational populations of the E, D states and branching ratios of vibrational and electronic predissociations. One can suppose that luminescence of the HeI2(E,v(E) = 0, n(E) = 0) complexes occurs. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：250 / 256

页数：7

共 26 条

[1] Non-adiabatic transitions between first tier ion-pair states of I2 induced by collisions with Ar atoms [J].

Akopyan, M. E. ;

Baturo, V. V. ;

Lukashov, S. S. ;

Poretsky, S. A. ;

Pravilov, A. M. .

CHEMICAL PHYSICS, 2015, 462 :3-11

[2] Spectroscopic constants and the potential energy curve of the iodine weakly bound 0g+ state correlating with the I(2P1/2)+I(2P1/2) dissociation limit [J].

Akopyan, M. E. ;

Baturo, V. V. ;

Lukashov, S. S. ;

Poretsky, S. A. ;

Pravilov, A. M. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2013, 46 (05)

[3] Non-adiabatic transitions from I2(E0g+ and D0u+) states induced by collisions with M = I2(X0g+) and H2O [J].

Akopyan, M. E. ;

Baturo, V. V. ;

Lukashov, S. S. ;

Poretsky, S. A. ;

Pravilov, A. M. .

JOURNAL OF CHEMICAL PHYSICS, 2012, 136 (23)

[4] Dipole moment functions of the iodine D′2g -A′2u, D0u+-a′ 0g+, D0u+-X0g+ and E0g+-B0u+ transitions [J].

Akopyan, M. E. ;

Baturo, V. V. ;

Lukashov, S. S. ;

Poretsky, S. A. ;

Pravilov, A. M. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (20)

[5] The ArI2(ion-pair states) van der Waals complexes [J].

Baturo, V. V. ;

Cherepanov, I. N. ;

Lukashov, S. S. ;

Poretsky, S. A. ;

Pravilov, A. M. .

CHEMICAL PHYSICS LETTERS, 2016, 647 :161-164

[6] NeCl2 and ArCl2: Transition from Direct Vibrational Predissociation to Intramolecular Vibrational Relaxation and Electronic Nonadiabatic Effects [J].

Bieler, Craig R. ;

Janda, Kenneth C. ;

Hernandez-Lamoneda, Ramon ;

Roncero, Octavio .

JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 114 (09) :3050-3059

[7] BINDING-ENERGY OF IODINE RARE-GAS VANDERWAALS MOLECULES [J].

BLAZY, JA ;

DEKOVEN, BM ;

RUSSELL, TD ;

LEVY, DH .

JOURNAL OF CHEMICAL PHYSICS, 1980, 72 (04) :2439-2444

[8] Ar•••I2:: A model system for complex dynamics [J].

Buchachenko, A ;

Halberstadt, N ;

Lepetit, B ;

Roncero, O .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 2003, 22 (01) :153-202

[9] Dissociation dynamics of I2(B)-Ar:: Rotational population distributions of I2(B,v) fragments from the T-shaped and linear complexes [J].

Burroughs, A ;

Heaven, MC .

JOURNAL OF CHEMICAL PHYSICS, 2001, 114 (16) :7027-7035

[10] Experimental interrogation of the multidimensional He plus ICl(E, v†) and He+ICl(β, v†) intermolecular potential energy surfaces [J].

Darr, Joshua P. ;

Loomis, Richard A. .

JOURNAL OF CHEMICAL PHYSICS, 2008, 129 (14)

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