Results 51 to 60 of about 31,276 (258)

Reactivity of Amine/E(C6F5)3 (E = B, Al) Lewis Pairs toward Linear and Cyclic Acrylic Monomers: Hydrogenation vs. Polymerization

Molecules, 2015
This work reveals the contrasting reactivity of amine/E(C6F5)3 (E = B, Al) Lewis pairs toward linear and cyclic acrylic monomers, methyl methacrylate (MMA) and biorenewable γ-methyl-α-methylene-γ-butyrolactone (γMMBL).
Jiawei Chen, Eugene X.-Y. Chen
doaj   +1 more source

Trialkylborane-Assisted CO_2 Reduction by Late Transition Metal Hydrides [PDF]

, 2011
Trialkylborane additives promote reduction of CO_2 to formate by bis(diphosphine) Ni(II) and Rh(III) hydride complexes. The late transition metal hydrides, which can be formed from dihydrogen, transfer hydride to CO_2 to give a formateborane adduct.
Bercaw, John E., Labinger, Jay A., Miller, Alexander J. M.   +2 more
core   +1 more source

Positional disorder in ammonia borane at ambient conditions [PDF]

, 2014
We solve a long-standing experimental discrepancy of NH$_3$BH$_3$, which---as a molecule---has a threefold rotational axis, but in its crystallized form at room temperature shows a fourfold symmetry about the same axis, creating a geometric ...
Giannozzi, P., Thonhauser, T., Welchman, E.   +2 more
core   +2 more sources

Radiotherapy Enhancement by Gold Nanocluster‐functionalized Nanoliposomes Using Polychromatic Orthovoltage X‐ray Irradiation

Advanced Materials Interfaces, EarlyView.
Lipid drug carriers to which ultra‐small gold nanoparticles were added enabled more efficient radiotherapy of cultured pancreatic cancer tumors. These nanoparticles boosted radiation‐induced damage to tumors by generating more reactive molecules, though higher gold levels are needed for strong benefits.
Nazareth Milagros Carigga Gutierrez, Eaazhisai Kandiah, Sofia Leo, Erwan Dupont, Fabrizio Johnson‐Corrales, Marc‐André Hograindleur, Sarvenaz Keshmiri, Hélène Elleaume, Benoit Busser, Romain Haudecoeur, Véronique Jacob, Anthony Vella, Véronique Josserand, Maxime Henry, Jean‐Luc Coll, Amandine Hurbin, Xavier Le Guével, Mans Broekgaarden   +17 more
wiley   +1 more source

Novel B(Ar')2(Ar'') hetero-tri(aryl)boranes: a systematic study of Lewis acidity [PDF]

, 2016
A series of homo- and hetero-tri(aryl)boranes incorporating pentafluorophenyl, 3,5-bis(trifluoromethyl)phenyl, and pentachlorophenyl groups, four of which are novel species, have been studied as the acidic component of frustrated Lewis pairs for the ...
Ashley, Ashley, Bayne, Beckett, Binding, Blagg, Bourhis, Cairncross, Chase, Clark, Cummings, Dolomanov, Dureen, Elliot J. Lawrence, Elliot L. Bennett, Farrell, Fulmer, Georgina R. Hatton, Gregory G. Wildgoose, Gyömöre, Herrington, James M. Courtney, Konze, Lawrence, Lawrence, Lawrence, Lawrence, LeSuer, Lu, Mahdi, Mahdi, Mayer, McCahill, Ménard, Ménard, Nödling, Otten, Palatinus, Palatinus, Palatinus, Robin J. Blagg, Sajid, Samigullin, Schäfer, Scott, Scott, Scott, Sheldrick, Sheldrick, Sivaev, Stephan, Stephan, Stephan, Stephan, Stephan, Stephan, Travis, Trevor R. Simmons, Waerder, Wang, Welch, Zaher   +61 more
core   +2 more sources

Thermodynamic Hydricity of Small Borane Clusters and Polyhedral closo-Boranes [PDF]

Molecules, 2020
Thermodynamic hydricity (HDAMeCN) determined as Gibbs free energy (ΔG°[H]−) of the H− detachment reaction in acetonitrile (MeCN) was assessed for 144 small borane clusters (up to 5 boron atoms), polyhedral closo-boranes dianions [BnHn]2−, and their lithium salts Li2[BnHn] (n = 5–17) by DFT method [M06/6-311++G(d,p)] taking into account non-specific ...
Igor E. Golub, Oleg A. Filippov, Vasilisa A. Kulikova, Natalia V. Belkova, Lina M. Epstein, Elena S. Shubina   +5 more
openaire   +3 more sources

Wafer‐Scale Single‐Crystal Boron Nitride: Synthesis and Integration in 2D Electronics

Advanced Materials Interfaces, EarlyView.
This Review highlights recent breakthroughs in wafer‐scale hBN synthesis and its integration into next‐generation 2D electronics. We analyze growth kinetics, epitaxial strategies, and stacking‐sequence control while correlating material quality with device performance.
Jaewon Wang, Soon‐Yong Kwon
wiley   +1 more source

Practical Enantioselective Reduction of Ketones Using Oxazaborolidine Catalysts Generated In Situ from Chiral Lactam Alcohols

Molecules, 2018
Oxazaborolidine catalyst (CBS catalyst) has been extensively used for catalytic borane reduction with a predictable absolute stereochemistry and high enantioselectivity.
Yasuhiro Kawanami, Ryo C. Yanagita
doaj   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

Macropolyhedral boron-containing cluster chemistry: two-electron variations in intercluster bonding intimacy. Contrasting structures of 19-vertex [(eta(5)-C5Me5)HIrB18H19(PHPh2)] and [(eta(5) -C5Me5)IrB18H18(PH2Ph)] [PDF]

, 2004
Fused double-cluster [(5-C5Me5)IrB18H18(PH2Ph)]8, from syn-[(5-C5Me5)IrB18H20] 1 and PH2Ph, retains the three-atoms-in-common cluster fusion intimacy of 1, in contrast to [(5-C5Me5)HIrB18H19(PHPh2)]6, from PHPh2 with 1, which exhibits an opening to a ...
Jelínek, T., Kennedy, J.D., Perera, S.D., Shea, S.L., Stibr, B., Thornton-Pett, M.   +5 more
core   +1 more source