计算物理 ›› 2019, Vol. 36 ›› Issue (2): 219-224.DOI: 10.19596/j.cnki.1001-246x.7835

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(BN)25团簇的结构与性能

何志伟1, 张秀荣1,2   

  1. 1. 商丘工学院基础教学部, 河南 商丘 476000;
    2. 江苏科技大学, 江苏 镇江 212003
  • 收稿日期:2018-01-22 修回日期:2018-04-16 出版日期:2019-03-25 发布日期:2019-03-25
  • 作者简介:何志伟(1983-),男,硕士,讲师,研究方向为计算物理学,E-mail:zhiweihe@126.com
  • 基金资助:
    国家自然科学基金(51402131)及河南省高等学校重点科研项目(17A120012)资助

Structure and Properties of (BN)25 Clusters

HE Zhiwei1, ZHANG Xiurong1,2   

  1. 1. Basic Teaching Department, Shangqiu Institute of Technology, Shangqiu 476000, China;
    2. Jiangsu Universitity of Science and Technology, Zhenjiang 212003, China
  • Received:2018-01-22 Revised:2018-04-16 Online:2019-03-25 Published:2019-03-25

摘要: 采用密度泛函理论的杂化密度泛函(B3LYP)方法,在6-31G (d)基组水平上,对(BN)25团簇进行结构优化和频率计算,得到基态构型,并对其稳定性、自然键轨道(NBO)、振动光谱和NICS进行计算.结果表明:(BN)25团簇的能隙值较高,具有良好的化学稳定性;B原子和N原子的内部及原子之间都会发生s、p轨道杂化,原子之间有少量电荷转移;(BN)25团簇的红外光谱和拉曼光谱都有较多振动峰;(BN)25团簇具有芳香性.

关键词: (BN)25团簇, 结构与性能, 密度泛函理论

Abstract: Geometries, stabilities, NBO, vibrational spectroscopy and NICS of (BN)25 clusters were optimized in the framework of density functional theory (DFT) through the use of B3LYP hybrid functional associated with 6-31G(d) basis sets. We found that (BN)25 clusters is stable due to its large average binding energy and energy gap. Charge transfer and s, p hybridization between adjacent B and N atoms are confirmed by NBO analysis. Many vibration peaks are found in infrared spectrum and Raman spectra. Negative nucleus independent chemical shifts(NICS) indicate that BN clusters have aromatic properties.

Key words: (BN)25clusters, structure and properties, density functional theory

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