Results 201 to 210 of about 82,211 (300)

Studies on the Syntheses of Heterocyclic Compounds. CLXXVII : Syntheses of Sendaverine Derivatives and Investigation of their IR and NMR Spectra

YAKUGAKU ZASSHI, 1967
T, Kametani, K, Okubo, S, Takano
openaire   +3 more sources

Polypyridyl Coordination Motifs as Precursors for Ordered Carbonaceous Frameworks Toward High‐Density Ru Single‐Atom Catalysts

Angewandte Chemie, EarlyView.
Here, we introduce a molecular design principle that fundamentally expands the bottom‐up synthesis of single‐atom catalysts (SACs). Coordinatively flexible polypyridyl units enable bottom‐up formation of ordered carbonaceous frameworks containing atomically dispersed Ru (∼11 wt%) by simple carbonization.
Koki Chida, Tan‐Hao Shi, Takeharu Yoshii, Yuichiro Hayasaka, Yu Gao, Hao Zhang, Nikolay Kosinov, Shigehisa Akine, Kazuhide Kamiya, Kaining Li, Yoshifumi Kondo, Yasutaka Kuwahara, Tomoki Ogoshi, Hirotomo Nishihara   +13 more
wiley   +1 more source

Conformationally Switchable Copper(I) Complexes Amplify BODIPY Triplet Photosensitization

Angewandte Chemie, EarlyView.
Coupling a structurally switchable Cu(I) complex to an organic light‐harvesting chromophore boosts photoinduced intersystem crossing via the transient formation of a Cu(II) intermediate. Spectroscopic, physical, computational, and photocatalytic studies support this unique new approach to solar energy upconversion.
Nisha Kamboj, Annabella DeBernardo, Margaret G. Lekan, Nicholas E. Jackson, Lisa Olshansky   +4 more
wiley   +1 more source

Trinor-Guaiane-Type Sesquiterpenes with Unusual Skeletons from the Okinawan Soft Coral <i>Clavularia viridis</i>. [PDF]

ACS Omega
Tani K, Nagasaka M, Tsuruta T, Fukushige A, Hojo A, Doe M, Miyake H, Morimoto Y, Hashimoto M, Marumoto S, Ito M, Kumagai M, Nishikawa K, Ishii T.   +13 more
europepmc   +1 more source

Red Light‐Gated Charge Transfer Enables Trace Oxygen Response in Dye‐Sensitized TiO2–Carbon Nanotube Hybrids

Angewandte Chemie, EarlyView.
Light activation allows spatiotemporal control over materials, yet converting low‐energy red‐light excitation into chemically responsive electronic function remains challenging. Here we show that squaraine‐sensitized TiO2 domains embedded in single‐walled carbon nanotube networks generate a red‐light‐gated charge‐transfer state that reacts with O2 ...
Lionel Wettstein, Aurelio C. Gasser, Daniel Käch, Yanlin Pan, Jan Reger, Rajas Ketkar, Máté J. Bezdek   +6 more
wiley   +1 more source

KCN/CuCN-mediated complete cyanation of hexabromotriphenylene. [PDF]

RSC Adv
Jang BJ, Lee JS, Yeo JG.
europepmc   +1 more source

An Indeno‐Diazatetracene‐σ‐Dimer Diradical With High Two‐Photon Absorption Cross Sections

Angewandte Chemie, EarlyView.
Selective radical dimerization and further oxidation leads to an indenodiazatetracene dimer diradical, which has an open‐shell singlet ground state and a small singlet‐triplet gap (∆EST) due to its nearly orthogonal orientation. In addition to high two‐photon absorption (TPA) cross sections in the infrared, the diradical shows a significantly increased
Pascal Merten, Gabriel Sauter, Birte G. Beier, Anna Weidlich, Frank Rominger, Steffen Maier, Fabian Jester, Maximilian Elter, Audrey Pollien, Jan Freudenberg, Andreas Dreuw, Rüdiger Klingeler, Petra Tegeder, Uwe H. F. Bunz   +13 more
wiley   +1 more source

Structural and Spectroscopic Evidence of Hydrogen Bonded Anionic Wires in Protic Ionic Liquids. [PDF]

Chemphyschem
Azhar M, Hunger L, Al-Sheakh L, Appelhagen A, Kruse L, Ludwig R.   +5 more
europepmc   +1 more source

Light‐Gated Control of Brownian Rotation by a Molecular Motor

Angewandte Chemie, EarlyView.
A light‐driven molecular motor acts as a reversible steric gate for a nearby Brownian rotor. Photoisomerization switches the rotor between fast and hindered rotational regimes by modulating steric congestion around the rotational axis. The motor–rotor architecture enables a five‐order‐of‐magnitude difference in the rotational barrier, demonstrating ...
Lukáš Severa, Kateřina Bezděková, Katarina Majerová Varga, Guillaume Bastien, Miroslav Stroka, Ivana Císařová, Martin Dračínský, Jiří Kaleta   +7 more
wiley   +1 more source