Accepted Manuscript Novel SO 3 H-functionalized polyoxometalate-based ionic liquids as highly efficient catalysts for esterification reaction Mosadegh Keshavarz, Nasir Iravani, Abolfath Parhami PII: S0022-2860(19)30423-5 DOI: https://doi.org/10.1016/j.molstruc.2019.04.027 Reference: MOLSTR 26399 To appear in: Journal of Molecular Structure Received Date: 13 February 2019 Revised Date: 25 March 2019 Accepted Date: 5 April 2019 Please cite this article as: M. Keshavarz, N. Iravani, A. Parhami, Novel SO 3 H-functionalized polyoxometalate-based ionic liquids as highly efficient catalysts for esterification reaction, Journal of Molecular Structure (2019), doi: https://doi.org/10.1016/j.molstruc.2019.04.027. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.