Photoinduced changes in aromaticity facilitate electrocyclization of dithienylbenzene switches

B Oruganti, P Pál Kalapos, V Bhargav… - Journal of the …, 2020 - ACS Publications
The concepts of excited-state aromaticity and antiaromaticity have in recent years with
increasing frequency been invoked to rationalize the photochemistry of cyclic conjugated …

A photo-switchable molecular capsule: sequential photoinduced processes

M Choudhari, J Xu, AI McKay, C Guerrin, C Forsyth… - Chemical …, 2022 - pubs.rsc.org
The metastable trilacunary heteropolyoxomolybdate [PMo9O31 (py) 3] 3−–{PMo9}; py=
pyridine) and the ditopic pyridyl bearing diarylethene (DAE)(C25H16N2F6S2) self-assemble …

[PDF][PDF] Polycyclic heteroaromatic π-linkers provide dithienylethene switches with favorable thermal and photochemical properties for solar-energy storage

S Thillaiarasi, DS Perumalla, B Oruganti… - …, 2024 - Wiley Online Library
Dithienylethene photoswitches with an aromatic π-linker as the bridge between the two
thiophene units are attractive starting materials for developing molecular solar thermal …

Easy Processable Photomechanical Thin Film Involving a Photochromic Diarylethene and a Thermoplastic Elastomer in Supramolecular Interaction

I Arroyo, R Cedeño, N Nour Eddine, G Alcaraz… - Small, 2024 - Wiley Online Library
A novel supramolecular photoactuator in the form of a thin film of centimetric size has been
developed as an alternative to traditional liquid crystal elastomers (LCE) involving …

In-situ SAXS/WAXS investigations of ureidopyrimidinone functionalized semi-crystalline poly (ethylene-co-butylene) supramolecular polymers

M Louati, JF Tahon, D Fournier, G Stoclet, S Aloise… - Polymer, 2021 - Elsevier
The structural evolution as a function of temperature of a supramolecular copolymer
assembly based on multiple hydrogen bonds has been investigated. Ureidopyrimidinone …

Understanding the properties of dithienylethenes functionalized for supramolecular self-assembly: a molecular modeling study

L Le Bras, R Berthin, I Hamdi, M Louati… - Physical Chemistry …, 2020 - pubs.rsc.org
A dithienylethene (DTE) photochromic compound functionalized by ureidopyrimidinone
(UPy) quadruple hydrogen bonding blocks was synthesized by Takeshita and coworkers …

Excited-state resonance Raman spectroscopy probes the sequential two-photon excitation mechanism of a photochromic molecular switch

KH Burns, TJ Quincy, CG Elles - The Journal of Chemical Physics, 2022 - pubs.aip.org
Some diarylethene molecular switches have a low quantum yield for cycloreversion when
excited by a single photon, but react more efficiently following sequential two-photon …

Cyclization dynamics and competitive processes of photochromic perfluorocyclopentene dithienylethylene in solution

I Hamdi, G Buntinx, AK Tiwari, S Delbaere… - …, 2020 - Wiley Online Library
Time‐resolved absorption spectroscopy measurements were performed to study the
dynamics of photochromic 1, 2‐Bis (2, 4‐dimethylthiophene‐3‐yl) perfluoro‐cyclopentene …

Modeling photonastic materials: A first computational study

L Le Bras, C Lemarchand, S Aloïse… - Journal of Chemical …, 2020 - ACS Publications
Photonastic materials present a directional and repeatable deformation of the material
shape due to transduction from light energy to mechanical energy. Among these materials …

Unraveling ultrafast dynamics of the photoswitchable bridged dithienylethenes under structural constraints

I Hamdi, G Buntinx, O Poizat, S Delbaere… - Physical Chemistry …, 2019 - pubs.rsc.org
The excited state dynamics of constrained photochromic benzodithienylethenes were
addressed by considering the bridging with polyether chains (from x= 4 to 6 units) at the …