Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Faculty Publications Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Baby, Anju Maria; Sreekumar, Krishnapillai; Mohammed Sadik, N.K.; Theresa, Letcy V. Title A name given to the resource Bithiophene and 3,4-Ethylenedioxythiophene Copolymers with Biphenyl and Bis-[octyloxy]benzene acceptors for NLO Application Date A point or period of time associated with an event in the lifecycle of the resource 01-01-2026 Source A related resource from which the described resource is derived Journal of Molecular Structure;Volume;1350;Issue;;Article No.;143889; Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1016/j.molstruc.2025.143889" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.molstruc.2025.143889</a> <br /><br /><a href="https://www.scopus.com/pages/publications/105015795644?origin=resultslist" target="_blank" rel="noreferrer noopener">https://www.scopus.com/pages/publications/105015795644?origin=resultslist</a> Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Baby A.M., Department of chemistry, St.Thomas College, Pala, Kerala, Kochi, 686574, India; Sreekumar K., Department of Chemistry, Cochin University of Science and Technology, Kerala, Kochi, 682021, India; Mohammed Sadik N.K., Department of Chemistry, Cochin University of Science and Technology, Kerala, Kochi, 682021, India; Theresa L.V., Department of Chemistry, Christ University, Banglore, India Description An account of the resource Two groups of thiophene-based donoracceptor (DA) type conjugated copolymers with low band gaps were designed and synthesized through direct arylation. Biphenyl and bis(octyloxy)benzene were incorporated as electron-deficient units to effectively lower the band gaps. The HOMOLUMO energy levels of the resulting copolymers were theoretically determined using DFT calculations at the HSE06 and B3LYP levels with a 631G(d,p) basis set. The copolymers were characterized by UVVis, FT-IR, fluorescence, and H NMR spectroscopy. Their thermal stability was assessed using thermogravimetric analysis, which confirmed that the bithiophene-based copolymers P(BT-BP) and P(BT-DOB) were highly thermally stable. Additionally, P(BT-DOB) and P(EDOT-DOB) exhibited solvatochromic behavior in varying toluene/acetonitrile solvent mixtures. Third-order nonlinear optical properties of P(BT-BP), P(EDOT-BP), P(BT-DOB), and P(EDOT-DOB) were studied using an open-aperture Z-scan method at 532 nm in DMSO. These copolymers showed reverse saturable absorption with low optical threshold values. 2025 Elsevier B.V. Subject The topic of the resource Copolymer; DFT Theory; Lifetime measurement; Non-linear optical properties; Solvatochromism Publisher An entity responsible for making the resource available Elsevier B.V. Relation A related resource ISSN: 222860; CODEN: JMOSB Language A language of the resource English Type The nature or genre of the resource Article Rights Information about rights held in and over the resource Restricted Access; Hardcopy may be available in the library Format The file format, physical medium, or dimensions of the resource online