Results 41 to 50 of about 2,463 (211)

Reactions of Experimentally Known Closo-C₂B₈H₁₀ with Bases. A Computational Study

Crystals, 2020
On the basis of the direct transformations of closo-1,2-C2B8H10 with OH(−) and NH3 to arachno-1,6,9-OC2B8H13(−) and arachno-1,6,9-NC2B8H13, respectively, which were experimentally observed, the DFT computational protocol was used to examine the ...
Josef Holub, Jindřich Fanfrlík, Michael L. McKee, Drahomír Hnyk   +3 more
doaj   +1 more source

Pd-catalyzed Functionalization of Carboranes and the Applications of Carboranes as Three-Dimensional Pharmacophores in New HDAC inhibitors [PDF]

, 2020
Icosahedral carboranes, a class of boron-rich clusters, are kinetically stabilized by the multicenter-2-electron delocalized bonding mode. The resulting 3-dimensional σ-aromaticity of the carboranes are analogous to the two-dimensional aromaticity of ...
HOPP, MORGAN J
core   +1 more source

Reevaluating ortho-Carborane Synthesis: Success with Mono-Substituted Acetylenes in the Presence of Silver Salts

Журнал органічної та фармацевтичної хімії
The study shows that traditional methods for synthesizing ortho-carboranes from nido-B10H14 and its complexes (B10H12L2) using donor- and acceptor-disubstituted acetylenes yielding low efficiencies (yields 0 - 12%).
Oleh V. Svaliavyn, Artem M. Mishchenko, Yulian L. Lishchenko, Andrey P. Mityuk, Alona S. Cherednichenko, Nataliya A. Shtil, Volodymyr V. Turcheniuk, Radomyr V. Smaliy, Yuliya V. Rassukana, Olexandr Ye. Pashenko   +9 more
doaj   +1 more source

Crystal structure of 1,1′-bis[1,7-dicarba-closo-dodecaborane(11)]

Acta Crystallographica Section E, 2014
In the title compound, C4H22B20, the two {1,7-closo-C2B10H11} cages are linked across a centre of inversion, with C—C = 1.5401 (16) Å. The position of the second non-linking cage C atom was established unambiguously by geometric and crystallographic ...
Lisa Elrick, Georgina M. Rosair, Alan J. Welch   +2 more
doaj   +1 more source

Carborane Nanomembranes

ACS Nano
We report on the fabrication of a boron-based two-dimensional (2D) material via electron irradiation-induced cross-linking of carborane self-assembled monolayers (SAMs) on crystalline silver substrates. The SAMs of 1,2-dicarba-closo-dodecarborane-9,12-dithiol (O9,12) were prepared on flat crystalline silver substrates and irradiated with low-energy ...
Martha Frey, Julian Picker, Christof Neumann, Jakub Višňák, Jan Macháček, Oleg L. Tok, Petr Bábor, Tomas Base, Andrey Turchanin   +8 more
openaire   +3 more sources

Superatom Distortion Induces Triferroicity and Spin Splitting in Two‐Dimensional Antiferromagnets

Advanced Science, EarlyView.
The incorporation of superatoms into a 2D square lattice induces symmetry breaking, thereby enabling concurrent coupling among magnetism, ferroelectricity, and ferroelasticity. This strategy achieves triferroic behavior—characterized by spin‐split antiferromagnetic ground states—and offers a viable pathway toward energy‐efficient spintronic devices ...
Zhen Gao, Fengxian Ma, Guoping Gao, Weizhen Meng, Ying Liu, Yandong Ma, Yalong Jiao   +6 more
wiley   +1 more source

Access to cationic polyhedral carboranes via dynamic cage surgery with N-heterocyclic carbenes

Nature Communications, 2021
In comparison to their neutral or anionic counterparts, examples of cationic boron clusters remain scarce. Here, the authors prepare a variety of cationic polyhedral boranes by reacting closo-10-vertex carboranes with N-heterocyclic carbenes; the ...
Jan Vrána, Josef Holub, Maksim A. Samsonov, Zdeňka Růžičková, Josef Cvačka, Michael L. McKee, Jindřich Fanfrlík, Drahomír Hnyk, Aleš Růžička   +8 more
doaj   +1 more source

Isomeric Ag14 Nanoclusters With Distinct Photophysical and Nanomechanical Properties

Advanced Science, EarlyView.
Ligand‐shell isomerism in atomically precise Ag14 nanoclusters is demonstrated to regulate core distortion, photoluminescence, and mechanical properties. Subtle changes in phosphine ligand arrangement drive a pronounced emission shift from green to red and alter crystal rigidity, revealing a direct structure‐property correlation that offers new design ...
Vivek Yadav, Arijit Jana, Maya Khatun, Harshita Nagar, Sergei Lebedkin, Amit Mondal, Swetashree Acharya, Sami Malola, Sudhadevi Antharjanam, Moses Egor, Pijush Ghosh, Tomas Base, Manfred Kappes, Hannu Häkkinen, Thalappil Pradeep   +14 more
wiley   +1 more source

Beyond Traditional Phenolics: Disulfide Bonds for Performance Enhancement of Aerospace Ablation‐Resistant Materials from Processing to Recycling

Advanced Science, EarlyView.
The dynamic disulfide bonds facilitated the development of high‐performance aerospace ablation‐resistant materials. At moderate temperature, the dissociation and recombination of disulfide bonds ensured excellent processability, mechanical properties, and recycling ability of phenolic resin; at high temperature, cleavage of disulfide bonds produced ...
Yu Li, Boyuan Hu, Xiaolong Xing, Huan Yang, Ziqi Zhang, Cheng Bian, Ruixue Bai, Ling Yue, Chengshuang Zhang, Xinli Jing   +9 more
wiley   +1 more source

Iron-Catalyzed Selective B–H Activation for 4/5-fold Methylation and Arylation of Carboranes

, 2022
Catalytic selective B–H functionalization of carboranes has recently attracted enormous research interest, resulting in the development of a series of methods for transition metal-catalyzed vertex-specific functionalization of carboranes.
Yu Chen (29959), Peng Zhou (116747), Zuowei Xie (1425799)   +2 more
core   +1 more source