Ion-solvent and Ion-ion Interactions at High Concentration LiClO4 Solutions in Acetone

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (18): 1693-1698. Previous Articles Next Articles

Original Articles

高浓度LiClO₄/丙酮溶液中离子-溶剂和离子-离子的相互作用

轩小朋，王键吉*，赵扬，卓克垒

(河南师范大学化学与环境科学学院新乡 453007)

投稿日期:2004-12-09 修回日期:2005-05-09 发布日期:2010-12-10
通讯作者: 王键吉

Ion-solvent and Ion-ion Interactions at High Concentration LiClO₄ Solutions in Acetone

XUAN Xiao-Peng, WANG Jian-Ji*, ZHAO Yang, ZHUO Ke-Lei

(School of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007)

Received:2004-12-09 Revised:2005-05-09 Published:2010-12-10
Contact: WANG Jian-Ji

Abstract

The Infrared and Raman spectra of LiClO₄/acetone solutions have been investigated from diluted to high concentrations. It was found that the C＝O and C—C stretches of acetone were very sensitive to the interaction between Li^＋ and acetone molecules. Apparent solvation numbers of 1. 9～3. 4 for Li^＋ have been inferred at different molalities of LiClO₄ and the carbonyl group was suggested to be the main bonding site. The bands reveal the evidence for the presence of contact ion pair and its dimer. The association constants of LiClO₄ in acetone has been calculated and compared with the data obtained from conductivity measurements.

Key words: lithium perchlorate, acetone, ion solvation, ion association, raman spectroscopy, infrared spectroscopy

Cite this article

XUAN Xiao-Peng, WANG Jian-Ji*, ZHAO Yang, ZHUO Ke-Lei. Ion-solvent and Ion-ion Interactions at High Concentration LiClO₄ Solutions in Acetone[J]. Acta Chimica Sinica, 2005, 63(18): 1693-1698.

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高浓度LiClO₄/丙酮溶液中离子-溶剂和离子-离子的相互作用

Ion-solvent and Ion-ion Interactions at High Concentration LiClO₄ Solutions in Acetone

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高浓度LiClO4/丙酮溶液中离子-溶剂和离子-离子的相互作用