1. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China 2. College of Chemistry & Chemical Engineening, Anhui University, Hefei 230601, China
Abstract：In this paper the cluster structures of [Zn-(CH3CH2OH)n]2+ have been investigated with spectroscopic experiment and theoretical calculation. According to the fluorescence spectroscopy experiments, the fluorescence peak of ethanol molecules was found between 275~330 nm. A new peak appeared between 350~380 nm after the metal ions (Zn2+) was added into ethanol solution due to the generation of new clusters of molecules, and the original fluorescence peak of ethanol molecules became weak owing to the destroyed structure of ethanol molecules induced by Zn2+. The cluster structures of Zn2+ in water solution were investigated by using different methods. By comparing the results, a more accurate and fast B3LYP method of DFT was found and applied to optimize the possible structures of [Zn-(CH3CH2OH)n]2+. The results suggested that the first solvation shell of the system is up to six ethanol molecules, and thermodynamic parameters also shows the six kinds of molecular clusters which are likely in the solution. Moreover compared the theoretical fluorescence spectroscopy with experimental fluorescence spectroscopy, new clusters [Zn-(CH3CH2OH)n]2+ have been generated, with [Zn-(CH3CH2OH)n]2+(n=1~3) as main constructions.
[1] Spezia R, Beuchat C, Vuilleumier R, et al. The Journal of Physical Chemistry B, 2012, 116(22): 6465. [2] Amaro-Estrada J I, Maron L, Ramírez-Solís A. Physical Chemistry Chemical Physics, 2014, 16(18): 8455. [3] K Mueller, J Yeston. Science, 2011, 331: 1491. [4] Matsumiya M, Kamo Y, Hata K, et al. Journal of Molecular Structure, 2013, 1048: 59. [5] Monti D, Jónsson E, Palacín M R, et al. Journal of Power Sources, 2014, 245: 630. [6] Karabacak M, Bilgili S, Mavis T, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013, 115: 709. [7] Terashima Y, Takeda K, Honda M. Chemical Physics, 2014, 430: 23. [8] WU Xiao-jing, DAI Yun(吴晓静, 代 云). Science China: Chemistry(中国科学: 化学), 2011, 41(10): 1597. [9] WU Xiao-jing, QUAN Jun-jie, YU Ya-peng, et al(吴晓静, 权俊杰, 于亚鹏, 等). Chemistry(化学通报), 2013, 76(10): 935. [10] Wilson M, Hogstrand C, Maret W. Journal of Biological Chemistry, 2012, 287(12): 9322. [11] Shi Z, Zhang C, Tang C, et al. Chemical Society Reviews, 2012, 41(8): 3381. [12] Finn C, Schnittger S, Yellowlees L. J. Chem. Commun., 2012, 48：1392?1399. [13] Lin S, Lin X, Yang Y, et al. Aquaculture, 2013, 406: 79. [14] Zdziennicka A, Jańczuk B. Journal of Colloid and Interface Science, 2011, 354(1): 396. [15] Rastogi A, Al-Abed S R, Dionysiou D D. Applied Catalysis B: Environmental, 2009, 85(3): 171. [16] Sarkar S, Joarder R N. J. Chem. Phys., 1994, 100: 5118. [17] K Laasonen，Pasquarello A，Car R, et al. Phys. Rev. B, 1993, 47(16): 10142. [18] Bukowski R, Szalewicz K, Groenenboom G C A. Science, 2007, 315: 1249. [19] Feller D, Peterson K A. J. Chem. Phys., 2007, 126: 114105. [20] Ayala R, Martinez J M, Pappalardo R R. Journal of Physical Chemistry B, 2008, 112(17): 5416.
