Results 51 to 60 of about 45,338 (207)

Initiation Kinetics of Latent Olefin Metathesis Precatalysts

Advanced Synthesis &Catalysis, EarlyView.
Ready, set, go: Initiation of several latent olefin metathesis precatalysts was measured both by light and heat activation. Sulfur‐chelated ruthenium precatalysts were initiated more efficiently when thermally activated, while the precatalysts with phosphite ligands were more responsive to photochemical stimulation. The initiation results were compared
Nadir Rosenblat, Anna Vaisman, Yugang Bai, N. Gabriel Lemcoff   +3 more
wiley   +1 more source

Deuteron Photodissociation in Ultraperipheral Relativistic Heavy-Ion on Deuteron Collisions

, 2003
In ultraperipheral relativistic deuteron on heavy-ion collisions, a photon emitted from the heavy nucleus may dissociate the deuterium ion. We find deuterium breakup cross sections of 1.38 barns for deuterium-gold collisions at a center of mass energy of
A. Trzcinska, A.E. Thorlacius, A.I. Akhieser, A.J. Baltz, A.J. Buchmann, C. Adler, C. Adler, C.A. Barnes, C.W. deJager, F. Krauss, G. Baur, G. Baur, M. Chiu, M.L. Rustgi, P. Rossi, R. Bernabei, R. Glauber, R. Moreh, Ramona Vogt, S. Klein, S.J. Brodsky, Spencer Klein, Y. Birenbaum   +22 more
core   +5 more sources

From Rigid to Elastic: Tailoring the Properties of Linear Poly(IBOA‐co‐2EHA) Copolymers Synthesized by UV Polymerization

Journal of Applied Polymer Science, EarlyView.
The combination of a rigid monomer (IBOA) and a flexible monomer (2‐EHA) via free‐radical copolymerization yields amorphous poly(IBOA‐co‐2‐EHA) with a wide range of tunable mechanical properties. The image depicts how increasing the IBOA content shifts the material's behavior from that of an elastic elastomer (PEHA) to a rigid, brittle plastic (PIBOA),
Djazia Bendeddouche, Lamia Bedjaoui‐Alachaher, Aida Jover, Mohammed Aymen Zehouani, Amina Bouriche, Anne‐Sophie Schuller, Christelle Delaite, Ulrich Maschke   +7 more
wiley   +1 more source

Ultrafast F2− photodissociation by intense laser pulses: a time-resolved fragment imaging study [PDF]

EPJ Web of Conferences, 2019
We present time-resolved coincidence imaging of F2− photodissociation by 400nm and intense 800nm ultrafast pulses. Coincidence fragment imaging reveals parallel and perpendicular single photon dissociation on 2Σg+ and 2πg states, and additional intense ...
Shahi Abhishek, Albeck Yishai, Strasser Daniel   +2 more
doaj   +1 more source

Detection of Formaldehyde Towards the Extreme Carbon Star IRC+10216

, 2004
We report the detection of H2CO (formaldehyde) around the carbon-rich AGB star, IRC+10216. We find a fractional abundance with respect to molecular hydrogen of x(H2CO)= (1.3 {+1.5}{-0.8}) x 10^{-8}.
Beust H., Cernicharo J., Colom P., Dartois E., David A. Neufeld, Gary J. Melnick, Jaruschewski S., K. E. Saavik Ford, Meier R., Peter Schilke, Pierazzo E., Tsuji T., Willacy K.   +12 more
core   +1 more source

UV and IR spectroscopy of singly protonated DIYETDYYR, a tryptic peptide from the regulatory loop of insulin receptor

Bulletin of the Korean Chemical Society, EarlyView.
The structure of singly protonated DIYETDYYR, which is a tryptic peptide in the regulatory loop of the insulin receptor, was determined by cryogenic ion spectroscopy. Abstract DIYETDYYR is a tryptic peptide from the regulatory loop of insulin receptor, which has the three tyrosine residues need for activation of the protein.
Hyo Nam Jeon, Shun‐ichi Ishiuchi, Masaaki Fujii, Hyuk Kang   +3 more
wiley   +1 more source

Roles of UV light strength and auxiliary electric field in the photocatalytic degradation effect of organic contaminant

High Voltage, 2019
The accumulation of contaminants on the electrical devices could adversely affect the operation. The present work used photocatalytic functional material to coat on the surface of the electrical devices to prevent the influence of organic contamination ...
Lin YaoYu, Ma YanXiang, Bian XingMing, Sun PengCheng, Sun PengCheng   +4 more
doaj   +1 more source

Vibrationally excited molecular hydrogen production from the water photochemistry

Nature Communications, 2021
Understanding the source of vibrationally excited molecular hydrogen is an essential prerequisite for understanding the chemical evolution in the universe.
Yao Chang, Feng An, Zhichao Chen, Zijie Luo, Yarui Zhao, Xixi Hu, Jiayue Yang, Weiqing Zhang, Guorong Wu, Daiqian Xie, Kaijun Yuan, Xueming Yang   +11 more
doaj   +1 more source

Photodissociation of the OD radical at 226 and 243 nm [PDF]

, 2003
The photodissociation dynamics of state selected OD radicals has been examined at 243 and 226 nm using velocity map imaging to probe the angle–speed distributions of theD(2S) and O(3P2) products.
Chestakov, Dmitri A., Eppink, Andre T.J.B., Greenslade, Margaret E., Groenenboom, Gerrit G., Lester, Marsha I., Parker, David H., Radenovic, Dragana C., ter Meulen, J J., van der Loo, Mark P.J., van Roij, Andre J.A.   +9 more
core   +1 more source

Primordial Star Formation under Far-ultraviolet radiation

, 2000
Thermal and chemical evolution of primordial gas clouds irradiated with far-ultraviolet (FUV; < 13.6 eV) radiation is investigated. In clouds irradiated by intense FUV radiation, sufficient hydrogen molecules to be important for cooling are never formed.
Black J. H., Borysow A., Carlberg R. G., de Jong T., Doroshkevich A. G., Galli D., John T. L., Kashlinsky A., Kazuyuki Omukai, Kompaneets A. S., Larson R. B., Penston M. V., Yoneyama T.   +12 more
core   +2 more sources