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Platinum(II) metallomesogens: new external‐stimuli‐responsive photoluminescence materials Cuerva de Alaiz, Cristian Campo Santillana, José Antonio Cano Esquivel, María Mercedes Lodeiro, Carlos 546 Pt(II) metallomesogens Liquid crystals Luminescence Smart materials Stimuli-responsive materials Química 2303 Química Inorgánica New dicatenar isoquinoline-functionalized pyrazoles, [HpzR(n,n)iq] (R(n,n)=C6H3(OCnH2n+1)2; n=4, 6, 8, 10, 12, 14, 16, 18), have been strategically designed and synthesized to induce mesomorphic and luminescence properties into the corresponding bis(isoquinolinylpyrazolate)platinum(II) complexes [Pt(pzR(n,n)iq)2]. Thermal studies reveal that all platinum(II) compounds exhibit columnar mesophases over an exceptionally wide temperature range, above 300 °C in most cases. The photophysical behavior was also investigated in solution and in the solid state. As a consequence of the formation of Pt⋅⋅⋅Pt interactions, the weak greenish emission of the platinum derivatives turns bright orange in the mesophase. Additionally, the complexes are sensitive to a great variety of external inputs, such as temperature, mechanical grinding, pressure, solvents, and vapors. On this basis, they are used as dopant agents of a polyvinylpyrrolidone or poly(methyl methacrylate) polymer matrix to achieve stimuli-responsive thin films. Ministerio de Economía y Competitividad (España) Universidad Complutense de Madrid European Commission Portuguese Foundation for Science and Technology Scientific Society PROTEOMASS (Portugal) Depto. de Química Inorgánica Fac. de Ciencias Químicas TRUE pub 2024-01-12T11:38:34Z 2024-01-12T11:38:34Z 2016 journal article AM https://hdl.handle.net/20.500.14352/92760 0947-6539 10.1002/chem.201601115 1521-3765 eng Cuerva C, Campo JA, Cano M, Lodeiro C. Platinum(II) metallomesogens: new external-stimuli-responsive photoluminescence materials. Chem. Eur. J, 2016, 22, 10168-10178 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ open access application/pdf Wiley