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Ran Y, Pang M, Shen W, Li M, He R. Vibrationally high-resolved electronic spectra of MCl2 (M=C, Si, Ge, Sn, Pb) and photoelectron spectra of MCl2(.). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 167:1-11. [PMID: 27280730 DOI: 10.1016/j.saa.2016.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 11/01/2015] [Accepted: 05/16/2016] [Indexed: 06/06/2023]
Abstract
We systematically studied the vibrational-resolved electronic spectra of group IV dichlorides using the Franck-Condon approximation combined with the Duschinsky and Herzberg-Teller effects in harmonic and anharmonic frameworks (only the simulation of absorption spectra includes the anharmonicity). Calculated results showed that the band shapes of simulated spectra are in accordance with those of the corresponding experimental or theoretical ones. We found that the symmetric bend mode in progression of absorption is the most active one, whereas the main contributor in photoelectron spectra is the symmetric stretching mode. Moreover, the Duschinsky and anharmonic effects exert weak influence on the absorption spectra, except for PbCl2 molecule. The theoretical insights presented in this work are significant in understanding the photophysical properties of MCl2 (M=C, Si, Ge, Sn, Pb) and studying the Herzberg-Teller and the anharmonic effects on the absorption spectra of new dichlorides of this main group.
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Affiliation(s)
- Yibin Ran
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Min Pang
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Wei Shen
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ming Li
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rongxing He
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Lee EPF, Dyke JM, Chow WK, Mok DKW, Chau FT. Ab Initio Study of Low-Lying Electronic States of SnCl2+. J Phys Chem A 2007; 111:13193-9. [DOI: 10.1021/jp073983w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Edmond P. F. Lee
- Departments of Building Services Engineering and Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, and School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - John M. Dyke
- Departments of Building Services Engineering and Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, and School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Wan-ki Chow
- Departments of Building Services Engineering and Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, and School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Daniel K. W. Mok
- Departments of Building Services Engineering and Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, and School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Foo-tim Chau
- Departments of Building Services Engineering and Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, and School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
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Lee EPF, Dyke JM, Mok DKW, Chow WK, Chau FT. Ab initiocalculations on SnCl2 and Franck-Condon factor simulations of its ã-X̃ and B̃-X̃ absorption and single-vibronic-level emission spectra. J Chem Phys 2007; 127:024308. [PMID: 17640129 DOI: 10.1063/1.2749508] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Minimum-energy geometries, harmonic vibrational frequencies, and relative electronic energies of some low-lying singlet and triplet electronic states of stannous dichloride, SnCl(2), have been computed employing the complete-active-space self-consistent-field/multireference configuration interaction (CASSCF/MRCI) and/or restricted-spin coupled-cluster single-double plus perturbative triple excitations [RCCSD(T)] methods. The small core relativistic effective core potential, ECP28MDF, was used for Sn in these calculations, together with valence basis sets of up to augmented correlation-consistent polarized-valence quintuple-zeta (aug-cc-pV5Z) quality. Effects of outer core electron correlation on computed geometrical parameters have been investigated, and contributions of off-diagonal spin-orbit interaction to relative electronic energies have been calculated. In addition, RCCSD(T) or CASSCF/MRCI potential energy functions of the X(1)A(1), ã(3)B(1), and B(1)B(1) states of SnCl(2) have been computed and used to calculate anharmonic vibrational wave functions of these three electronic states. Franck-Condon factors between the X (1)A(1) state, and the ã (3)B(1) and B (1)B(1) states of SnCl(2), which include anharmonicity and Duschinsky rotation, were then computed, and used to simulate the ã-X and B-X absorption and corresponding single-vibronic-level emission spectra of SnCl(2) which are yet to be recorded. It is anticipated that these simulated spectra will assist spectroscopic identification of gaseous SnCl(2) in the laboratory and/or will be valuable in in situ monitoring of SnCl(2) in the chemical vapor deposition of SnO(2) thin films in the semiconductor gas sensor industry by laser induced fluorescence and/or ultraviolet absorption spectroscopy, when a chloride-containing tin compound, such as tin dichloride or dimethyldichlorotin, is used as the tin precursor.
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Affiliation(s)
- Edmond P F Lee
- Department of Building Services Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong
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Cornet R, Dubois I. Identification of two band systems attributed to the SiCl2radical. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3700/10/3/003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sameith D, Mönch J, Tiller HJ, Schade K. Vibrational analysis of the UV emission spectrum of dichlorosilyl, SiCl2. Chem Phys Lett 1986. [DOI: 10.1016/0009-2614(86)80658-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ha TK, Nguyen MT, Kerins MC, Fitzpatrick J. An ab initio study of the electronic spectrum of dichlorosilylene, SiCl2. Chem Phys 1986. [DOI: 10.1016/0301-0104(86)80024-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Washida N, Matsumi Y, Hayashi T, Ibuki T, Hiraya A, Shobatake K. Emission spectra of SiH(A 2Δ→X 2Π) and SiCl2(Ã 1B1→X̃ 1A1) in the VUV photolyses of silane and chlorinated silanes. J Chem Phys 1985. [DOI: 10.1063/1.449227] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ozin GA, Voet AV. Matrix Isolation Laser Raman Spectroscopy. I. Vibrational Raman Spectra and Depolarization Measurements for Matrix Isolated Group IVa Dihalides, MX2and MXY (where M = Ge, Sn, Pb and X, Y = Cl, Br), in Solid Argon and Nitrogen. J Chem Phys 1972. [DOI: 10.1063/1.1676950] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Infrared and Ultraviolet Spectroscopic Studies of a Number of Small Free Radicals and Molecular Ions in a Matrix Environment. ACTA ACUST UNITED AC 1971. [DOI: 10.1016/b978-0-12-021504-1.50007-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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