Accepted Manuscript Interplay of weak noncovalent interactions in two conjugated positional isomers: A combined X-ray, optical properties and theoretical investigation Mani Udayakumar, Margarita Cerón, Paulina Ceballos, M. Judith Percino, Subbiah Thamotharan PII: S0022-2860(19)30681-7 DOI: https://doi.org/10.1016/j.molstruc.2019.05.109 Reference: MOLSTR 26616 To appear in: Journal of Molecular Structure Received Date: 22 February 2019 Revised Date: 23 May 2019 Accepted Date: 26 May 2019 Please cite this article as: M. Udayakumar, M. Cerón, P. Ceballos, M.J. Percino, S. Thamotharan, Interplay of weak noncovalent interactions in two conjugated positional isomers: A combined X-ray, optical properties and theoretical investigation, Journal of Molecular Structure (2019), doi: https:// doi.org/10.1016/j.molstruc.2019.05.109. 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.