Synthesis and Characterization of Novel Dendrons Bearing Amino-Nitro-Substituted Azobenzene Units and Oligo(ethylene glycol) Spacers: Thermal, Optical Properties, Langmuir Blodgett Films and Liquid-Crystalline Behaviour

Autor: Ernesto Rivera, Maria del Pilar Carreón-Castro, Ana Martínez, Mayra Avelar, Efraín Rodríguez-Alba, Jesús Ortíz-Palacios

Publikováno v: Molecules, Vol 18, Iss 2, Pp 1502-1527 (2013)

In this work, we report the synthesis and characterization of a novel series of first and second generation Fréchet type dendrons bearing amino-nitro substituted azobenzene units and tetra(ethylene glycol) spacers. These compounds were fully charact

Externí odkaz: https://doaj.org/article/6fe57a219e9847e599f407920233eec2

Synthesis, characterization and optical properties of novel star azo-oligomers containing well-defined oligo(ethylene glycol) segments

Autor: Mireille Vonlanthen, Jesús Ortíz-Palacios, Ernesto Rivera, Roberto González-Gómez, Andrea Ruiu, Bianca X. Valderrama-García

Publikováno v: Journal of Molecular Structure. 1160:248-255

In this work, the synthesis and characterization of a series of star azo-oligomers bearing amino, amino-methoxy, amino-nitro and amino-cyano substituted azobenzene units and oligo(ethylene glycol) segments is reported. The full characterization of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c759b8fff3d22ae6506014aa0cf4d54
https://doi.org/10.1016/j.molstruc.2018.01.082

Conformation of Novel Azo-Dyes Bearing End-Capped Oligo(ethylene glycol) Studied by UV–vis and NMR Spectroscopy

Autor: X. X. Zhu, Wilms E. Baille, Ernesto Rivera, Jesús Ortíz-Palacios, Edgar Aguilar-Ortíz, Cassandre Kouvatas

Publikováno v: Journal of Physical Chemistry B
Journal of Physical Chemistry B, American Chemical Society, 2015, 119 (37), pp.12318-12324. ⟨10.1021/acs.jpcb.5b05853⟩

International audience; Two novel azo-dyes bearing an end-capped oligo(ethylene glycol) chain were synthesized and then studied by UV–visible and NMR spectroscopy. For both azobenzenes, the end-capped oligo(ethylene glycol) segment is on the para p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e5f5ab0d4b54421c5a4167c367503d4
https://doi.org/10.1021/acs.jpcb.5b05853

Incorporation of novel azobenzene dyes bearing oligo(ethylene glycol) spacers into first generation dendrimers

Autor: Gerardo Zaragoza-Galán, Jorge Rafael León-Carmona, Ana Martínez, Ernesto Rivera, Efraín Rodríguez-Alba, Jesús Ortíz-Palacios

Publikováno v: Dyes and Pigments. 116:1-12

Herein, we report the synthesis and inclusion of a new series of azo-dyes into first generation Frechet type dendrimers. The incorporated dyes are amino-nitro, amino-methoxy and amino-butyl substituted azobenzenes bearing a well defined oligo(ethylen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5e5162e9867743cee6e46f7bd10edaf
https://doi.org/10.1016/j.dyepig.2014.11.023

Fréchet-type dendrons bearing azobenzene units and flexible oligo(ethylene glycol) spacers: synthesis, characterization, thermal and optical properties

Autor: Gerardo Zaragoza-Galán, Jesús Ortíz-Palacios, Ernesto Rivera, Efraín Rodríguez-Alba

Publikováno v: Designed Monomers and Polymers. 16:578-591

In this study, we report the synthesis and characterization of a novel series of first- and second-generation Frechet-type dendrons bearing amino-nitro, amino-methoxy and amino-butyl substituted azobenzene units and tetra(ethylene glycol) spacers. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a2276e048b70a0396e22106ed3b0799
https://doi.org/10.1080/15685551.2013.771310