Aissaoui Tayeb, AlNashef Inas M, Hayyan Maan, Hashim Mohd Ali
Department of Chemical Engineering, University of Technology Petronas, 31750 Tronoh, Perak, Malaysia.
Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, Abu Dhabi, United Arab Emirates.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Oct 5;149:588-91. doi: 10.1016/j.saa.2015.05.001. Epub 2015 May 7.
Deep eutectic solvents (DESs) are novel solvent media that are currently under investigation as an alternative to ionic liquids and conventional solvents. The physical properties of DESs as well as their mild environmental footprint and potentially critical industrial application necessitate understanding the interaction of functional groups on both the salt and hydrogen bond donor (HBD). In this study, four DESs were prepared by mixing triethylenglycol, diethylenglycol, ethylenglycol, and glycerol as HBDs with methyltriphenylphosphonium bromide as a salt at a molar ratio of 1:4. Fourier transform infrared spectroscopy was conducted to highlight the chemical structure and mechanism of the combination of the four DESs. New spectra illustrating the combination of the functional groups of the HBDs and salt were observed and interpreted. This study is the first to investigate the properties of neoteric phosphonium-based DESs.
深共熔溶剂（DESs）是新型溶剂介质，目前正作为离子液体和传统溶剂的替代品进行研究。DESs的物理性质、温和的环境足迹以及潜在的关键工业应用，使得有必要了解盐和氢键供体（HBD）上官能团之间的相互作用。在本研究中，通过将三甘醇、二甘醇、乙二醇和甘油作为HBDs与甲基三苯基溴化鏻作为盐以1:4的摩尔比混合，制备了四种DESs。进行了傅里叶变换红外光谱分析，以突出四种DESs组合的化学结构和机理。观察并解释了显示HBDs和盐官能团组合的新光谱。本研究首次对新型鏻基DESs的性质进行了研究。
