Results 31 to 40 of about 5,608 (248)

Efficient light-induced phase transitions in halogen-bonded liquid crystals [PDF]

, 2016
Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions.
Fernandez-Palacio F., Ikkala O., Metrangolo P., Poutanen M., Priimagi A., Resnati G., Saccone M., Siiskonen A., Terraneo G.   +8 more
core   +1 more source

Halogen bonding enhances nonlinear optical response in poled supramolecular polymers [PDF]

, 2015
We demonstrate that halogen bonding strongly enhances the nonlinear optical response of poled supramolecular polymer systems. We compare three nonlinear optical chromophores with similar electronic structures but different bond-donating units, and show ...
Forni A., Kauranen M., Metrangolo P., Priimagi A., Resnati G., Saccone M., Tuominen O., Virkki M.   +7 more
core   +1 more source

Controlled rotary motion of light-driven molecular motors assembled on a gold film [PDF]

, 2010
Using circular dichroism (CD) spectroscopy, we show that light-driven rotary molecular motors based on overcrowded alkenes can function in a self-assembled monolayer on semi-transparent gold films.
Adams, Akimov, Andrew, Areephong, Baber, Ball, Balzani, Balzani, Browne, Clarke, de Jonge, Dimilla, Doron-Mor, Dulic, Dulkeith, Eelkema, Evans, Feringa, Fletcher, Fournier-Bidoz, Gao, Gould, Haidekker, Horansky, Horansky, Hugel, Imahori, Keegan, Khatua, Koumura, Koumura, Kudernac, Leigh, London, Love, Maksymovych, Manna, Michl, Nuckolls, Pollard, Pollard, Pollard, Quina, Rozenbaum, Shirai, Stranick, Thomas, Ulman, van Delden, Wanunu, Winston, Zheng   +51 more
core   +3 more sources

Combining UV-Vis and Resonance Raman Spectroscopy to Characterize Molecular Aggregation

Crystals, 2023
In this work, we use UV-Vis and Raman spectroscopy to correlate the intensity of selected transitions to the onset of aggregation phenomena. Through TDDFT calculations, we rationalize the formation of H-aggregates and their influence on the observed ...
Valentina Sesti, Micol D’Antonio, Andrea Lucotti, Paola Moretti, Rossella Castagna, Chiara Bertarelli, Matteo Tommasini   +6 more
doaj   +1 more source

Azobenzene photocontrol of peptides and proteins [PDF]

, 2016
The last few years have witnessed significant advances in the use of light as a stimulus to control biomolecular interactions. Great efforts have been devoted to the development of genetically encoded optobiological and small photochromic switches. Newly
Allemann, Rudolf, Mart, Robert
core   +1 more source

Ortho-Fluorination of azophenols increases the mesophase stability of photoresponsive hydrogen-bonded liquid crystals [PDF]

, 2018
Photoresponsive liquid crystals (LCs) whose alignment can be controlled with UV-Visible light are appealing for a range of photonic applications. From the perspective of exploring the interplay between the light response and the self-assembly of the ...
Ahmed Z., Giese M., Kuntze K., Priimagi A., Saccone M., Siiskonen A.   +5 more
core   +1 more source

Metathesis Cyclopolymerization Triggered Self-Assembly of Azobenzene-Containing Nanostructure

Molecules, 2020
Azobenzene (AB) units were successfully introduced into poly(1,6-heptadiyne)s in order to ensure smooth synthesis of double- and single-stranded poly(1,6-heptadiyne)s (P1 and P2) and simultaneously realize the self-assembly by Grubbs-III catalyst ...
Wei Song, Jiamin Shen, Xiang Li, Jinhui Huang, Liang Ding, Jianhua Wu   +5 more
doaj   +1 more source

Liquid Crystalline Copolymers Containing Sulfonic and Light-Responsive Groups: From Molecular Design to Conductivity

Molecules, 2020
In the search for novel smart multifunctional liquid crystalline materials, we report the synthesis, thermal and structural characterisation, and the conductivity, of a set of new block and statistical copolymers, containing light-responsive mesogenic ...
Sakinah Mohd Alauddin, Nurul Fadhilah Kamalul Aripin, Thamil Selvi Velayutham, Alfonso Martinez-Felipe   +3 more
doaj   +1 more source

Surface-Relief Gratings in Halogen-Bonded Polymer–Azobenzene Complexes: A Concentration-Dependence Study [PDF]

, 2017
In recent years, supramolecular complexes comprising a poly(4-vinylpyridine) backbone and azobenzene-based halogen bond donors have emerged as a promising class of materials for the inscription of light-induced surface-relief gratings (SRGs).
Arri, Priimagi, DICHIARANTE, VALENTINA, Marco, Saccone, Matti, Virkki, METRANGOLO, PIERANGELO, Ossi, Lehtonen, Stumpel, Jelle E.   +6 more
core   +1 more source

Configurational Selection in Azobenzene‐Based Supramolecular Systems Through Dual‐Stimuli Processes

ChemistryOpen, 2020
Azobenzene is one of the most studied light‐controlled molecular switches and it has been incorporated in a large variety of supramolecular systems to control their structural and functional properties.
Prof. Paolo Tecilla, Prof. Davide Bonifazi   +1 more
doaj   +1 more source