Results 71 to 80 of about 45,903 (284)

Chalcogen Bonding due to the Exo-Substitution of Icosahedral Dicarbaborane

Molecules, 2019
Chalcogen atoms are a class of substituents capable of generating inner and outer derivatives of boron clusters. It is well known that chalcogenated boron clusters can form strong σ-hole interactions when a chalcogen atom is a part of an icosahedron.
Jindřich Fanfrlík, Drahomír Hnyk, Pavel Hobza   +2 more
doaj   +1 more source

Novel Precursors for Boron Nanotubes: The Competition of Two-Center and Three-Center Bonding in Boron Sheets

, 2007
We present a new class of boron sheets, composed of triangular and hexagonal motifs, that are more stable than structures considered to date and thus are likely to be the precursors of boron nanotubes. We describe a simple and clear picture of electronic
E. L. Muetterties, Hui Tang, K. C. Lau, P. J. Durrant, Sohrab Ismail-Beigi   +4 more
core   +1 more source

Measurement of boron and carbon fluxes in cosmic rays with the PAMELA experiment [PDF]

, 2014
The propagation of cosmic rays inside our galaxy plays a fundamental role in shaping their injection spectra into those observed at Earth. One of the best tools to investigate this issue is the ratio of fluxes for secondary and primary species. The boron-
Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Danilchenko, I. A., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergé, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G.   +63 more
core   +2 more sources

Sterically Unprotected Nucleophilic Boron Cluster Reagents [PDF]

Chem, 2019
A cornerstone of modern synthetic chemistry rests on the ability to manipulate the reactivity of a carbon center by rendering it either electrophilic or nucleophilic. However, accessing a similar reactivity spectrum with boron-based reagents has been significantly more challenging.
Xin Mu, Jonathan C. Axtell, Nicholas Bernier, Kent Kirlikovali, Dahee Jung, Alexander Umanzor, Kevin Qian, Xiangyang Chen, Katherine Bay, Monica Kirollos, Arnold L. Rheingold, K. N. Houk, Alexander Spokoyny   +12 more
openaire   +4 more sources

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

Advanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin, Qi Meng, Juncai Long, Chuheng Cao, Zheng‐Long Xu   +4 more
wiley   +1 more source

Remarkable Hydrogen Storage on Beryllium Oxide Clusters: First Principles Calculations

, 2016
Since the current transportation sector is the largest consumer of oil, and subsequently responsible for major air pollutants, it is inevitable to use alternative renewable sources of energies for vehicular applications. The hydrogen energy seems to be a
Shinde, Ravindra, Tayade, Meenakshi
core   +2 more sources

Optimisation of the parameters of an extended defect model applied to non-amorphizing implants [PDF]

, 2005
In this paper, we present the optimisation of the parameters of a physical model of the kinetics of extended defects and applied the model with the optimised parameters to non-amorphizing implants.
Connétable, Damien, Cristiano, F., Lampin, E., Lamrani, Youness   +3 more
core   +4 more sources

Boron Clusters Come of Age [PDF]

Journal of Chemical Education, 2004
Polyhedral clusters containing boron, alone or in combination with other elements, have been known for nearly a century, and intensive studies of their structures, bonding, and reactivity have been...
openaire   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

Advanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber, Ying Sun, Jakob Wolansky, Louis Conrad Winkler, Anna‐Lena Hofmann, Fred Kretschmer, Hrisheekesh Thachoth Chandran, Tianyi Zhang, Mike Hambsch, Stefan C. B. Mannsfeld, Karl Leo, Ji‐Seon Kim, Johannes Benduhn   +12 more
wiley   +1 more source

Dynamic Phase Diagram of Catalytic Surface of Hexagonal Boron Nitride under Conditions of Oxidative Dehydrogenation of Propane. [PDF]

, 2018
Partially oxidized surfaces of hexagonal boron nitride (hBN) and several metal borides are unexpectedly excellent catalysts for oxidative dehydrogenation of alkanes to olefins, but the nature of the active site(s) on these B-containing interfaces remains
Alexandrova, Anastassia N, Hermans, Ive, Jimenez-Izal, Elisa, Zhang, Zisheng   +3 more
core   +2 more sources