期刊
JOURNAL OF CHEMICAL PHYSICS
卷 144, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4944088
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资金
- National Natural Science Foundation of China [21573188, 21403127]
- Natural Science Foundation of Shandong Province, China [ZR2014BQ015]
- Graduate Innovation Foundation of Yantai University [YJSZ201509]
- Young Scholars Program of Shandong University, Weihai
Selenium-gold interaction plays an important role in crystal materials, molecular self-assembly, and pharmacochemistry involving gold. In this paper, we unveiled the mechanism and nature of selenium-gold interaction by studying complexes F2CSe center dot center dot center dot AuY (Y = CN, F, Cl, Br, OH, and CH3). The results showed that the formation of selenium-gold interaction is mainly attributed to the charge transfer from the lone pair of Se atom to the Au-Y anti-bonding orbital. Energy decomposition analysis indicated that the polarization energy is nearly equivalent to or exceeds the electrostatic term in the selenium-gold interaction. Interestingly, the chalcogen-gold interaction becomes stronger with the increase of chalcogen atomic mass in F2CX center dot center dot center dot AuCN (X = O, S, Se, and Te). The cyclic ternary complexes are formed with the introduction of NH3 into F2CSe center dot center dot center dot AuY, in which selenium-gold interaction is weakened and selenium-nitrogen interaction is strengthened due to the synergistic effects. (C) 2016 AIP Publishing LLC.
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