Results 31 to 40 of about 134,130 (301)

Using cyclotron radiation emission for ultra-high resolution x-ray spectroscopy

New Journal of Physics, 2021
Cyclotron radiation emission spectroscopy (CRES) is an approach to measuring the energy of an electron trapped in an externally applied magnetic field.
K Kazkaz, N Woollett
doaj   +1 more source

Synthesis of indenopyrazolones using functionalized SBA-15 [PDF]

Nanochemistry Research, 2021
Functionalized SBA -15 (Immobilization of Pd on the modified SBA -15) has been applied as an efficient catalyst for the preparation of indenopyrazolones by multi-component reactions of phenylhydrazine, aromatic aldehydes and indan-1,2,3- trione at room ...
Hossein Shahbazi-Alavi, Atefeh Bakhtiari, Javad Safaei-Ghomi, Sheida Khojasteh-Khosro   +3 more
doaj   +1 more source

The nature of the X-ray transient MAXI J0556−332 [PDF]

, 2012
Phase-resolved spectroscopy of the newly discovered X-ray transient MAXIJ0556-332 has revealed the presence of narrow emission lines in the Bowen region that most likely arise on the surface of the mass donor star in this low-mass X-ray binary.
Charles, PA, Cornelisse, R., Steeghs, D., O'Brien, Kieran, Munoz-Darias, T, Israel, G., Israel, G, Charles, P. A., Steeghs, D, Casares, J, Torres, M. A. P., Muñoz-Darias, T., Casares, J., Stella, L, Campana, S, Torres, M.A.P., Torres, MAP, Campana, S., Charles, P.A., Stella, L., D'Avanzo, P, O'Brien, K, Cornelisse, R, Israel, G. L., O'Brien, K., D'Avanzo, P.   +25 more
core   +1 more source

Probing ion-specific effects on aqueous acetate solutions: Ion pairing versus water structure modifications

Structural Dynamics, 2014
The effect of monovalent cations (Li+, K+, NH4+, Na+) on the water structure in aqueous chloride and acetate solutions was characterized by oxygen K-edge X-ray absorption spectroscopy (XAS), X-
Tristan Petit, Kathrin M. Lange, Gerrit Conrad, Kenji Yamamoto, Christoph Schwanke, Kai F. Hodeck, Marcus Dantz, Tim Brandenburg, Edlira Suljoti, Emad F. Aziz   +9 more
doaj   +1 more source

A green protocol for the one-pot synthesis of 3,4-disubstituted isoxazole-5(4H)-ones using modified β-cyclodextrin as a catalyst

Scientific Reports, 2022
This manuscript reports an impressive and facile strategy for synthesizing isoxazole derivatives using immobilized Cu (I) in metformin-functionalized β-cyclodextrin as a catalyst.
Mahdieh Tajbakhsh, Mohammad Reza Naimi-Jamal, Saeed Balalaie, Mohadeseh Rezaeian   +3 more
doaj   +1 more source

A von Hámos spectrometer for diamond anvil cell experiments at the High Energy Density Instrument of the European X-ray Free-Electron Laser

Journal of Synchrotron Radiation, 2023
A von Hámos spectrometer has been implemented in the vacuum interaction chamber 1 of the High Energy Density instrument at the European X-ray Free-Electron Laser facility.
Johannes M. Kaa, Zuzana Konôpková, Thomas R. Preston, Valerio Cerantola, Christoph J. Sahle, Mirko Förster, Christian Albers, Lélia Libon, Robin Sakrowski, Lennart Wollenweber, Khachiwan Buakor, Anand Dwivedi, Mikhail Mishchenko, Motoaki Nakatsutsumi, Christian Plückthun, Jan-Patrick Schwinkendorf, Georg Spiekermann, Nicola Thiering, Sylvain Petitgirard, Metin Tolan, Max Wilke, Ulf Zastrau, Karen Appel, Christian Sternemann   +23 more
doaj   +1 more source

Hard x-ray photon-in-photon-out spectroscopy with lifetime resolution – of XAS, XES, RIXSS and HERFD

, 2007
Spectroscopic techniques that aim to resolve the electronic configuration and local coordination of a central atom by detecting inner-shell radiative decays following photoexcitation using hard X-rays are presented.
van Bokhoven, J.A., Safonova, O.V., Tromp, M., Pirngruber, G., Sikora, M., Grunewaldt, J.-D., Eeckhout, S.G., Glatzel, P., Smolentsev, G.   +8 more
core   +1 more source

HIGH-RESOLUTION X-RAY STIMULATED RAMAN SPECTROSCOPY USING STOCHASTIC PULSES [PDF]

, 2023
X-ray free-electron lasers (XFELs) generate high-intensity x-ray pulses which enable x-ray nonlinear spectro-scopies. The extension of nonlinear spectroscopies to the x-ray domain promises the observation of electronic dynamics on their natural ...
Li, Kai
core   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Capturing fingerprints of conical intersection: Complementary information of non-adiabatic dynamics from linear x-ray probes

Structural Dynamics, 2021
Many recent experimental ultrafast spectroscopy studies have hinted at non-adiabatic dynamics indicating the existence of conical intersections, but their direct observation remains a challenge.
Deependra Jadoun, Mahesh Gudem, Markus Kowalewski   +2 more
doaj   +1 more source