77069 20210416092953.0 doi 10.1016/j.molliq.2018.01.126 sideral 104551 ART-2018-104551 eng Trupthi Devaiah, C. Blue luminescent cyanopyridone based molecular architectures: A structure-property study 2018 Access copy available to the general public Unrestricted A new class of molecular architecture made of five conjugated rings carrying terminal methyl or variable alkoxy (chain lengths of 4, 6, 8, or 16) substituted at para positions has been synthesized. Among the five rings, two rings are of cyanopyridones utilized as an electron deficient N-heterocycle along with blue luminescent motif, and the rest of them are phenylene motifs. All the compounds produced good yield and ATR-IR, NMR and Mass spectroscopy confirmed their structures. Further, the compounds were stable up to ˜200 °C and the degradation occurs at higher temperature as evident from the TGA analysis. The mesomorphic study reveals that compound is only having very long terminal n-hexadecyloxy substituents appeared in-layers liquid crystalline organization as confirmed by POM and variable temperature XRD analysis. Further, the compounds showed intense blue fluorescence in both solution as well as solid state and their fluorescence quantum yields are dependent on the length of alkoxy chains. Calculated HOMO/LUMO levels by cyclic voltammetry measurements revealed that the compounds are ambipolar in nature and cited as an ideal candidates for electroluminescent applications. info:eu-repo/grantAgreement/ES/DGA/E04 info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-70174-P info:eu-repo/grantAgreement/ES/MINECO/MAT2014-55205-P info:eu-repo/grantAgreement/ES/MINECO/MAT2015-66208-C3-1-P info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.561 2018 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 7 / 36 = 0.194 2018 Q1 T1 CHEMISTRY, PHYSICAL 42 / 148 = 0.284 2018 Q2 T1 0.862 2018 Atomic and Molecular Physics, and Optics 2018 Q1 Condensed Matter Physics 2018 Q1 Spectroscopy 2018 Q1 Materials Chemistry 2018 Q1 Physical and Theoretical Chemistry 2018 Q1 Electronic, Optical and Magnetic Materials 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Hemavathi, B. (orcid)0000-0003-4416-1036 Ros, M.B. Universidad de Zaragoza (orcid)0000-0001-5816-7960 Barberá, J. Universidad de Zaragoza (orcid)0000-0003-1141-5933 Tejedor, R.M. Universidad de Zaragoza Sadasivuni, K.K. Ahipa, T.N. 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 255 (2018), 233-243 J. mol. liq. JOURNAL OF MOLECULAR LIQUIDS 0167-7322 3931759 http://zaguan.unizar.es/record/77069/files/texto_completo.pdf Postprint 30493 http://zaguan.unizar.es/record/77069/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:77069 articulos driver 2021-04-16-09:24:43 ARTICLE