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Título: | Formation of a Nonlinear Optical Host–Guest Hybrid Material by Tight Confinement of LDS 722 into Aluminophosphate 1D Nanochannels |
Autor: | Sola-Llano, Rebeca; Martínez, Virginia CSIC ORCID; Fujita, Yasuhiko; Gómez-Hortigüela Sainz, Luis CSIC ORCID ; Alfayate Lanza, Almudena; Ujii, Hiroshi; Fron, Eduard; Pérez-Pariente, Joaquín CSIC ORCID ; López-Arbeloa, Íñigo | Fecha de publicación: | 24-oct-2016 | Editor: | John Wiley & Sons | Citación: | Chemistry - a European Journal 22(44): 15700-15711 (2016) | Resumen: | In this work, hemicyanine dye LDS 722 is encapsulated into the 1D elliptical nanochannels of MgAPO‐11 aluminophosphate by a crystallization inclusion method. The synthesis of the hybrid material has been optimized through a systematic variation of the crystallization conditions in order to obtain pure and large crystals (around 20 μm×30 μm) suitable for optical applications. The tight fitting between the molecular size of the guest dye and the pore dimensions of the host has favored a rigid planar conformation of the dye, restricting its inherent flexibility, which is confirmed by molecular simulations. Consequently, the encapsulation of LDS 722 into MgAPO‐11 has led to an astonishing enhancement of the fluorescence with respect to the dye into MgAPO‐5, with slightly larger cylindrical channels, and with respect to the dye in solution. Moreover, the perfect alignment of LDS 722 (dye with intrinsic nonlinear‐optical properties) along the channels of MgAPO‐11 has revealed attractive second‐order nonlinear properties, such as second harmonic generation, proven through microscopy measurements in single crystals. | Versión del editor: | http://dx.doi.org/10.1002/chem.201601736 | URI: | http://hdl.handle.net/10261/162424 | DOI: | 10.1002/chem.201601736 | ISSN: | 0947-6539 | E-ISSN: | 1521-3765 |
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