WIPM OpenIR  > 2011年以前论文发表(包括2011年)
Photodissociation dynamics of propionyl chloride in the ultraviolet region
Wei, Zheng-Rong3; Zhang, Xiao-Peng1,2; Lee, Wei-Bin1,2; Zhang, Bing3; Lin, King-Chuen1,2; Lin, KC (reprint author), Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan.
2009-01-07
Source PublicationJOURNAL OF CHEMICAL PHYSICS
Volume130Issue:1
SubtypeArticle
AbstractVelocity imaging technique combined with (2+1) resonance-enhanced multiphoton ionization (REMPI) is used to detect primary photodissociation of propionyl chloride. In one-color experiments at 235 nm, the Cl and Cl-* fragments are produced rapidly, leading to a fraction of translational energy release of 0.37 and 0.35, anisotropy parameters of 1.1 and 0.8, and quantum yield of 0.67 and 0.33, respectively, when initial excitation of the (1)(n, pi(*))(CO) band is coupled to the (1)(n(Cl), sigma(*)(C-Cl)) repulsive configuration. The resulting propionyl radical with sufficient internal energy may undergo secondary dissociation to yield CO that is characteristic of an isotropic distribution. The REMPI spectra of the CO (0,0) and (1,1) bands are measured, giving rise to a Boltzmann rotational temperature of 1200 and 770 K, respectively, and a Boltzmann vibrational temperature of 2800 K. A minor channel of HCl elimination is not detected, probably because of predissociation in two-photon absorption at 235 nm. In two-color experiments comprising an additional 248 nm photolyzing laser, Cl and Cl-* are produced with a fraction of translational energy release of 0.43 and 0.40 and anisotropy parameters of 1.0 and 0.6, respectively. The secondary production of CO is not observed although the internal energy partitioned in the propionyl radical is in the proximity of the dissociation barrier. In either experimental scheme, a small component appearing in the center of the Cl and Cl-* images is proposed to stem from ground state dissociation via internal conversion.
KeywordGround States Molecule-photon Collisions Photodissociation Photoionisation Two-photon Processes
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationZ.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027.
DOI10.1063/1.3012353
WOS KeywordAB-INITIO CALCULATIONS ; C-CL BOND ; ACETYL-CHLORIDE ; NM PHOTODISSOCIATION ; MULTIPHOTON IONIZATION ; MOLECULAR-OXYGEN ; LASER-PULSES ; ALPHA-BOND ; DISSOCIATION ; VELOCITY
Indexed BySCI
Language英语
Funding OrganizationZ.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027. ; Z.R.W. wishes to thank the financial support of IAMS to visit with Professor Lin's group. This work is supported by National Taiwan University under Contract No. 97R0318 and National Science Council of Taiwan, Republic of China under Contract No. NSC 96-2113-M-002-027.
WOS Research AreaPhysics
WOS SubjectPhysics, Atomic, Molecular & Chemical
WOS IDWOS:000262372600012
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.wipm.ac.cn/handle/112942/2286
Collection2011年以前论文发表(包括2011年)
Corresponding AuthorLin, KC (reprint author), Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan.
Affiliation1.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
2.Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
Recommended Citation
GB/T 7714
Wei, Zheng-Rong,Zhang, Xiao-Peng,Lee, Wei-Bin,et al. Photodissociation dynamics of propionyl chloride in the ultraviolet region[J]. JOURNAL OF CHEMICAL PHYSICS,2009,130(1).
APA Wei, Zheng-Rong,Zhang, Xiao-Peng,Lee, Wei-Bin,Zhang, Bing,Lin, King-Chuen,&Lin, KC .(2009).Photodissociation dynamics of propionyl chloride in the ultraviolet region.JOURNAL OF CHEMICAL PHYSICS,130(1).
MLA Wei, Zheng-Rong,et al."Photodissociation dynamics of propionyl chloride in the ultraviolet region".JOURNAL OF CHEMICAL PHYSICS 130.1(2009).
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