理论研究B2分子X3g-和A3u态的光谱性质

刘慧; 邢伟; 施德恒; 孙金锋; 朱遵略

doi:10.7498/aps.61.203101

摘要

采用Davidson修正的内收缩多参考组态相互作用方法及Dunning等的相关一致基aug-cc-pV6Z计算了 B2分子X3g-和A3u电子态的势能曲线. 利用总能量外推公式, 将两个电子态的总能量分别外推至完全基组极限. 对势能曲线进行核价相关修正及相对论修正计算, 得到了同时考虑两种效应修正的外推势能曲线. 通过同位素质量识别, 得到了主要的同位素分子11B11B和10B11B的X3g- 和A3u电子态的光谱常数Te, Re, e, exe, eye, Be, e, e和e. 求解双原子分子核运动的径向Schrdinger方程, 找到了无转动的同位素分子11B2 (X3g-, A3u)和10B11B (X3g-, A3u)的全部振动态. 针对每一同位素分子的每一振动态, 分别计算了其振动能级和惯性转动常数等分子常数, 它们均与已有的实验结果较为一致. 其中, 10B11B (A3u) 分子的光谱常数和分子常数属首次报道.

关键词:

Abstract

The X3g- and A3u states of B2 molecule are studied using highly accurate valence internally contracted multireference configuration interaction approach including the Davidson modification. The Dunning's correlation-consistent basis sets, aug-cc-pV6Z and aug-cc-pV5Z, are used in the study. To obtain more reliable results, the potential energy curves (PECs) of two electronic states are extrapolated to the complete basis set limit by the two-point total-energy extrapolation scheme. The effects of the core-valence correlation and relativistic correction on PEC are taken into account. Employing these PECs, the spectroscopic parameters (Te, Re, e, exe, eye, Be, e, e and e) of the X3g- and A3u states of two main isotopes (11B2, 10B11B) are determined and compared with those reported in the literature. Comparison with the experimental data demonstrates that the present results are accurate. With the PECs determined here, the whole vibrational states for 11B2 (X3g-, A3u) and 10B11B (X3g-, A3u) are determined when the rotational quantum number J equals zero (J=0) by numerically solving the radical Schrdinger equation of nuclear motion. For each vibrational state of every isotope species, the vibrational level and inertial rotation constants are obtained, which are in excellent accordance with the experimental findings.

Keywords:

作者及机构信息

1.
信阳师范学院物理电子工程学院, 信阳 464000;

2.
河南师范大学物理与信息工程学院, 新乡 453007

基金项目: 国家自然科学基金(批准号: 61077073); 河南省高校科技创新人才支持计划(批准号: 2008HASTIT008)和河南省科技计划(批准号: 122300410303)资助的课题.

Authors and contacts

1.
College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China;

2.
College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61077073), the Program for Science and Technology Innovation Talents in Universities of Henan Province, China (Grant No. 2008HASTIT008), and the Program for Science and Technology of Henan Province, China (Grant No. 122300410303).

参考文献

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[2]	Meinkohn D 1985 Combust. Flame 59 225
[3]	Douglas A K, Herzberg G 1940 Can. J. Res. A 18 165
[4]	Graham W R M, Weltner W 1976 J. Chem. Phys. 65 1516
[5]	Bredohl H, Dubois I, Nzohabonayo P 1982 J. Mol. Spectrosc. 93 281
[6]	Knight L B, Gregory B W, Cobranchi S T, Feller D, Davidson E R 1987 J. Am. Chem. Soc. 109 3521
[7]	Brazier C R, Carrick P G 1994 J. Chem. Phys. 100 7928
[8]	Tam S, Macler M, DeRose M E, Fajardo M E 2000 J. Chem. Phys. 113 9067
[9]	Bruna P J, Wright J S 1989 J. Chem. Phys. 91 1126
[10]	Langhoff S R, Bauschlicher C W 1991 J. Chem. Phys. 95 5882
[11]	Carmichael I 1989 J. Chem. Phys. 91 1072
[12]	Pellegatti A, Marinelli F, Roche M, Maynau D, Malrieu J P 1987 J. Physique 48 29
[13]	Bruna P J, Wright J S 1990 J. Phys. Chem. 94 1774
[14]	McLean A D, Liu B, Chandler G S 1992 J. Chem. Phys. 97 8459
[15]	Martin J M L, Francoisand J P, Gijbels R 1989 J. Chem. Phys. 90 6469
[16]	Bruna P J, Wright J S 1990 J. Phys. B 23 2197S
[17]	Deutsch P W, Curtiss L A, Pople J A 1990 Chem. Phys. Lett. 174 33
[18]	Howard I A, Ray A K 1997 Z. Phys. D 42 299
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[28]	Yang C L, Zhu Z H, Wang R, Liu X Y 2001 J. Mol. Struct. (Theochem) 548 47
[29]	Langhoff S R, Davidson E R 1974 Int. J. Quantum Chem. 8 61
[30]	Davidson E R, Silver D W 1977 Chem. Phys. Lett. 52 403
[31]	Werner H-J, Knowles P J 1988 J. Chem. Phys. 89 5803
[32]	Knowles P J, Werner H-J 1988 Chem. Phys. Lett. 145 514
[33]	Wilson A K, Mourik T V, Dunning T H 1996 J. Mol. Struct. 388 339
[34]	Mourik T V, Wilson A K, Dunning T H 1999 Mol. Phys. 96 529
[35]	Woon D E, Dunning T H 1993 J. Chem. Phys. 98 1358
[36]	Krogh J W, Lindh R, Malmqvist P-Å, Roos B O, Veryazov V, Widmark P-O 2009 Molcas (Version 7.4) (Sweden: Lund University)
[37]	Liu H, Shi D H, Sun J F, Zhu Z L 2011 60 063101 (in Chinese) [刘慧, 施德恒, 孙金峰, 朱遵略 2011 60 063101]
[38]	Liu H, Xing W, Shi D H, Zhu Z L, Sun J F 2011 60 043102 (in Chinese) [刘慧, 邢伟, 施德恒, 朱遵略, 孙金峰 2011 60 043102]
[39]	Gao F, Yang C L, Hu Z Y, Wang M S 2007 Chin. Phys. 16 3668
[40]	Shi D H, Liu H, Sun J F, Zhu Z L, Liu Y F 2011 J. Mol. Spectrosc. 269 143
[41]	Shi D H, Liu H, Sun J F, Zhu Z L, Liu Y F 2011 J. Quant. Spectrosc. Radiat. Transfer 112 2567
[42]	Reiher M, Wolf A 2004 J. Chem. Phys. 121 2037
[43]	Wolf A, Reiher M, Hess B A 2002 J. Chem. Phys. 117 9215
[44]	Kendall R A, Dunning T H, Harrison R J 1992 J. Chem. Phys. 96 6796

施引文献

[1]	Mishima O, Tanaka J, Yamaoka S, Fukunaga O 1987 Science 238 181
[2]	Meinkohn D 1985 Combust. Flame 59 225
[3]	Douglas A K, Herzberg G 1940 Can. J. Res. A 18 165
[4]	Graham W R M, Weltner W 1976 J. Chem. Phys. 65 1516
[5]	Bredohl H, Dubois I, Nzohabonayo P 1982 J. Mol. Spectrosc. 93 281
[6]	Knight L B, Gregory B W, Cobranchi S T, Feller D, Davidson E R 1987 J. Am. Chem. Soc. 109 3521
[7]	Brazier C R, Carrick P G 1994 J. Chem. Phys. 100 7928
[8]	Tam S, Macler M, DeRose M E, Fajardo M E 2000 J. Chem. Phys. 113 9067
[9]	Bruna P J, Wright J S 1989 J. Chem. Phys. 91 1126
[10]	Langhoff S R, Bauschlicher C W 1991 J. Chem. Phys. 95 5882
[11]	Carmichael I 1989 J. Chem. Phys. 91 1072
[12]	Pellegatti A, Marinelli F, Roche M, Maynau D, Malrieu J P 1987 J. Physique 48 29
[13]	Bruna P J, Wright J S 1990 J. Phys. Chem. 94 1774
[14]	McLean A D, Liu B, Chandler G S 1992 J. Chem. Phys. 97 8459
[15]	Martin J M L, Francoisand J P, Gijbels R 1989 J. Chem. Phys. 90 6469
[16]	Bruna P J, Wright J S 1990 J. Phys. B 23 2197S
[17]	Deutsch P W, Curtiss L A, Pople J A 1990 Chem. Phys. Lett. 174 33
[18]	Howard I A, Ray A K 1997 Z. Phys. D 42 299
[19]	Bezugly V, Wielgus P, Kohout M, Wagner F R 2010 J. Comput. Chem. 31 1504
[20]	Müller T, Dallos M, Lischka H, Dubrovay Z, Szalay P G 2001 Theor. Chem. Acc. 105 227
[21]	Nguyen M T, Matus M H, Ngan V T, Grant D J, Dixon D A 2009 J. Phys. Chem. A 113 4895
[22]	Hachey M, Karna S P, Grien F 1992 J. Phys. B 25 1119
[23]	Tzeli D, Mavridis A 2005 J. Phys. Chem. A 109 10663
[24]	Miliordos E, Mavridis A 2010 J. Chem. Phys. 132 164307
[25]	Peterson K A, Kendall R S, Dunning T H 1993 J. Chem. Phys. 99 9790
[26]	Dupuis M, Liu B 1978 J. Chem. Phys. 68 2902
[27]	Xie A D, Zhu Z H 2006 Chin. J. Comput. Phys. 23 594 (in Chinese) [谢安东, 朱正和 2006 计算物理 23 594]
[28]	Yang C L, Zhu Z H, Wang R, Liu X Y 2001 J. Mol. Struct. (Theochem) 548 47
[29]	Langhoff S R, Davidson E R 1974 Int. J. Quantum Chem. 8 61
[30]	Davidson E R, Silver D W 1977 Chem. Phys. Lett. 52 403
[31]	Werner H-J, Knowles P J 1988 J. Chem. Phys. 89 5803
[32]	Knowles P J, Werner H-J 1988 Chem. Phys. Lett. 145 514
[33]	Wilson A K, Mourik T V, Dunning T H 1996 J. Mol. Struct. 388 339
[34]	Mourik T V, Wilson A K, Dunning T H 1999 Mol. Phys. 96 529
[35]	Woon D E, Dunning T H 1993 J. Chem. Phys. 98 1358
[36]	Krogh J W, Lindh R, Malmqvist P-Å, Roos B O, Veryazov V, Widmark P-O 2009 Molcas (Version 7.4) (Sweden: Lund University)
[37]	Liu H, Shi D H, Sun J F, Zhu Z L 2011 60 063101 (in Chinese) [刘慧, 施德恒, 孙金峰, 朱遵略 2011 60 063101]
[38]	Liu H, Xing W, Shi D H, Zhu Z L, Sun J F 2011 60 043102 (in Chinese) [刘慧, 邢伟, 施德恒, 朱遵略, 孙金峰 2011 60 043102]
[39]	Gao F, Yang C L, Hu Z Y, Wang M S 2007 Chin. Phys. 16 3668
[40]	Shi D H, Liu H, Sun J F, Zhu Z L, Liu Y F 2011 J. Mol. Spectrosc. 269 143
[41]	Shi D H, Liu H, Sun J F, Zhu Z L, Liu Y F 2011 J. Quant. Spectrosc. Radiat. Transfer 112 2567
[42]	Reiher M, Wolf A 2004 J. Chem. Phys. 121 2037
[43]	Wolf A, Reiher M, Hess B A 2002 J. Chem. Phys. 117 9215
[44]	Kendall R A, Dunning T H, Harrison R J 1992 J. Chem. Phys. 96 6796

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