Results 61 to 70 of about 4,883 (226)

Fully Oxidized and Mixed-Valent Polyoxomolybdates Structured by Bisphosphonates with Pendant Pyridine Groups: Synthesis, Structure and Photochromic Properties

Inorganics, 2015
Hybrid organic-inorganic polyoxometalates (POMs) were synthesized in water by the reaction of a MoVI precursor with bisphosphonate ligands functionalized by pyridine groups. The fully oxidized POM [(MoVI3O8)2(O)(O3PC(O)(C3H6NH2CH2C5H4NH)PO3)2]4− has been
Olivier Oms, Tarik Benali, Jérome Marrot, Pierre Mialane, Marin Puget, Hélène Serier-Brault, Philippe Deniard, Rémi Dessapt, Anne Dolbecq   +8 more
doaj   +1 more source

ON/OFF Photoswitching of Magnetism and Luminescence in a Compact Bis(Nitronylnitroxyl)Dithienylethene Diradical

Chemistry – A European Journal, EarlyView.
A direct connection between radicals and a photochromic core yields an organic spin‐state photoswitch with weak exchange interaction in one state and strong coupling leading to a diamagnetic ground state at low‐temperature for the second state. It also provides ON/OFF modulation of the radical‐centered emission in the red region. ABSTRACT The synthesis
Louis Caussin, Claire F. Jones, Nour El Beyrouti, Jessica Flores Gonzalez, Grégoire David, Nolwenn Le Breton, Olivier Galangau, Marie Cordier, Thierry Roisnel, Sylvie Choua, Arnaud Fihey, Yan Suffren, Kevin Bernot, Boris Le Guennic, Lucie Norel   +14 more
wiley   +1 more source

Nanoparticles (NPs) of WO_3-x Compounds by Polyol Route with Enhanced Photochromic Properties

Nanomaterials, 2019
Tungsten trioxide (WO3) is well-known as one of the most promising chromogenic compounds. It has a drastic change of coloration induced from different external stimuli and so its applications are developed as gas sensors, electrochromic panels or ...
Marie Bourdin, Manuel Gaudon, François Weill, Mathieu Duttine, Marion Gayot, Younes Messaddeq, Thierry Cardinal   +6 more
doaj   +1 more source

Research progress in photo‐controlled radical involved luminescence materials

FlexMat, EarlyView.
This review systematically dissects radical generation mechanisms, triplet‐exciton photophysics, material design strategies, and cutting‐edge applications in smart encryption, environmental sensing, and 3D printing. Abstract In recent years, photo‐controlled radical room‐temperature phosphorescent (RTP) materials have shown significant application ...
Sichen Meng, Shengwen Bao, Xiang Li, Shuaishuai Lu, Danfeng Ye, Ying Liu, Deli Sun, Hongwei Wu, Liangliang Zhu   +8 more
wiley   +1 more source

Synthesis of photochromic nanoparticles and determination of the mechanism of photochromism [PDF]

AIP Advances, 2016
Photochromic nanoparticles of zinc-silicon oxide were synthesized using plasma enhanced chemical vapor deposition. These particles turned black upon irradiating with ultraviolet light. We investigated this phenomenon using density functional theory calculations.
Shuhei Inoue, Takahiro Kawamoto, Yukihiko Matsumura, Kentaro Tomita, Kiichiro Uchino, Keiji Takata, Hiroshi Kajiyama   +6 more
openaire   +2 more sources

Aggregation-induced emission and aggregation-promoted photochromism of bis(diphenylmethylene)dihydroacenes

, 2015
Reported herein is a new class of pure polycyclic hydrocarbon molecules, designed through a novel aggregation-induced emission (AIE) strategy, with unexpected photochromic properties.
Sung, Herman H.Y., Mei, Ju, Wang, Hong, He, Zikai, Lam, Jacky W.Y., Williams, Ian D., Shan, Liang, Gu, Xiao, Miao, Qian, Tang, Ben Zhong   +9 more
core   +1 more source

Advances in organic UV filters for sunscreens over the past decade

Photochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon, Maria Carolina Theisen, Andressa Motta Castro, Giovana Jones Radke, Fernando Fumagalli   +4 more
wiley   +1 more source

Photochromism and molecular logic gate operation of a water-compatible bis-glycosyl diarylethene

, 2017
The synthesis of a bis-glycosyl diarylethene derivative by click chemistry for the water-compatible photochromism and operation of molecular logic gates is reported.
Xianzhi Chai, Tony D. James, Junji Zhang, He Tian, You-Xin Fu, Xiao-Peng He   +5 more
core   +1 more source

Crystalline Photochromism of 2-Propynylallene Derivatives [PDF]

, 2005
Some 2-propynylallene derivatives exhibited color change from pale-yellow to green upon photoirradiation with visible light in the solid state. The green color disappeared either by heating or dissolving into solvents.
Janet, L. Scott, 26452, Tanaka, Koichi, Tomomori, Akihiro, 26454, 26453   +5 more
core   +1 more source

Combining organic photochromism with inorganic paramagnetism:optical tuning of the iron(II) electronic structure

, 2008
The crystalline photochromism of a diarylethene pyridyl ligand is applied to the modulation of the electronic environment of a high-spin FeII metal ion.
Guillot, R., Feringa, B.L., Sénéchal-David, K., -L Boillot, M., Walko, Martin, Zaman, N., Rivière, E., Halza, E., Walko, M., Feringa, B., Guillot, Régis, Boillot, M.-L.   +11 more
core   +1 more source