scholarly journals Geometries and Electronic Structures of Boron Clusters: Planar Structures and All-boron Fullerenes

2016 ◽  
Vol 1 (2) ◽  
pp. 5-8 ◽  
Author(s):  
Lei Liu
Keyword(s):  
Electronic Structures ◽  
Boron Clusters ◽  
Planar Structures

A detailed investigation into the geometric and electronic structures of CoBQn (n = 2–10, Q = 0, −1) clusters

2017 ◽  
Vol 41 (19) ◽  
pp. 11208-11214 ◽  
Author(s):  
Peifang Li ◽  
Guoliang Sun ◽  
Jianping Bai ◽  
Weihua Wang ◽  
Gang Bao ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Size Dependence ◽  
Lumo Energy ◽  
Boron Clusters ◽  
Energy Gaps ◽  
Homo Lumo ◽  
Co Doped

The size dependence of HOMO–LUMO energy gaps of Co doped boron clusters.

scholarly journals Relative stability of planar clusters B11, B12, and B13 in neutral- and charged-states

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Levan Chkhartishvili
Keyword(s):  
Binding Energy ◽  
Relative Stability ◽  
Energy Criterion ◽  
Nanostructured Coating ◽  
Neutron Absorption ◽  
Coating Materials ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Planar Structures ◽  
Electromagnetic Radiations

Theoretically, within the diatomic model, there is studied the relative stability of most abundant boron clusters B11, B12, and B13 with planar structures in neutral, positively and negatively charge-states. According to the specific (pet atom) binding energy criterion, B12+ (6.49 eV) is found to be the most stable boron cluster, while B11– + B13+ (5.83 eV) neutral pair is expected to present the preferable ablation channel for boron-rich solids. Obtained results would be applicable in production of boron-clusters-based nanostructured coating materials with super-properties such as lightness, hardness, conductivity, chemically inertness, neutron-absorption, etc. making them especially effective for protection against cracking, wear, corrosion, neutron- and electromagnetic-radiations, etc.

scholarly journals Relative stability of planar clusters B11, B12, and B13 in neutral- and charged-states

2018 ◽  
Author(s):  
Levan Chkhartishvili
Keyword(s):  
Binding Energy ◽  
Relative Stability ◽  
Energy Criterion ◽  
Nanostructured Coating ◽  
Neutron Absorption ◽  
Coating Materials ◽  
Boron Cluster ◽  
Boron Clusters ◽  
Planar Structures ◽  
Electromagnetic Radiations

Theoretically, within the diatomic model, there is studied the relative stability of most abundant boron clusters B11, B12, and B13 with planar structures in neutral, positively and negatively charge-states. According to the specific (pet atom) binding energy criterion, B12+ (6.49 eV) is found to be the most stable boron cluster, while B11– + B13+ (5.83 eV) neutral pair is expected to present the preferable ablation channel for boron-rich solids. Obtained results would be applicable in production of boron-clusters-based nanostructured coating materials with super-properties such as lightness, hardness, conductivity, chemically inertness, neutron-absorption, etc. making them especially effective for protection against cracking, wear, corrosion, neutron- and electromagnetic-radiations, etc.

Atomic and Electronic Structures of Boron Clusters in Crystalline Silicon: The Case of X@B6 and X@B12, X=H–Br

2008 ◽  
pp. 89-102
Author(s):  
Yoshitsune Higashiguchi ◽  
Hiroaki Ochiai ◽  
Kazuyuki Igei ◽  
Kengo Ohmori ◽  
Yoshinori Hayafuji
Keyword(s):  
Electronic Structures ◽  
Crystalline Silicon ◽  
Boron Clusters

Boron clusters with 46, 48, and 50 atoms: competition among the core–shell, bilayer and quasi-planar structures

Nanoscale ◽  
2017 ◽  
Vol 9 (37) ◽  
pp. 13905-13909 ◽  
Author(s):  
Linwei Sai ◽  
Xue Wu ◽  
Nan Gao ◽  
Jijun Zhao ◽  
R. Bruce King
Keyword(s):  
Genetic Algorithm ◽  
Density Functional Theory ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Global Search ◽  
Core Shell ◽  
Functional Theory ◽  
Boron Clusters ◽  
The Core ◽  
Planar Structures

Using a genetic algorithm combined with density functional theory calculations, we perform a global search for the lowest-energy structures of Bnclusters withn= 46, 48, 50.

scholarly journals Novel spherical boron clusters and structural transition from 2D quasi-planar structures to 3D double-rings

2009 ◽  
Vol 176 ◽  
pp. 012028 ◽  
Author(s):  
Saikat Mukhopadhyay ◽  
Haying He ◽  
Ravindra Pandey ◽  
Yoke Khin Yap ◽  
Ihsan Boustani
Keyword(s):  
Structural Transition ◽  
Boron Clusters ◽  
Planar Structures

Electronic Structures and Thermochemical Properties of the Small Silicon-Doped Boron Clusters BnSi (n=1-7) and Their Anions

ChemPhysChem ◽  
2011 ◽  
Vol 12 (16) ◽  
pp. 2948-2958 ◽  
Author(s):  
Truong Ba Tai ◽  
Paweł Kadłubański ◽  
Szczepan Roszak ◽  
Devashis Majumdar ◽  
Jerzy Leszczynski ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Thermochemical Properties ◽  
Boron Clusters ◽  
Silicon Doped

3-D examination of the cytoskeletal sheets of mammalian eggs

1992 ◽  
Vol 50 (1) ◽  
pp. 914-915
Author(s):  
Carolyn A. Larabell ◽  
David G. Capco ◽  
G. Ian Gallicano ◽  
Robert W. McGaughey ◽  
Karsten Dierksen ◽  
...  
Keyword(s):  
Actin Filaments ◽  
Somatic Cells ◽  
Freeze Fracture ◽  
Blastocyst Stage ◽  
Cell Cytoplasm ◽  
Planar Structures ◽  
Cytoskeletal Network ◽  
Entire Cell ◽  
Cytoskeletal Networks ◽  
Mammalian Eggs

Mammalian eggs and embryos contain an elaborate cytoskeletal network of “sheets” which are distributed throughout the entire cell cytoplasm. Cytoskeletal sheets are long, planar structures unlike the cytoskeletal networks typical of somatic cells (actin filaments, microtubules, and intermediate filaments), which are filamentous. These sheets are not found in mammalian somatic cells nor are they found in nonmammalian eggs or embryos. Evidence that they are, indeed, cytoskeletal in nature is derived from studies demonstrating that 1) the sheets are retained in the detergent-resistant cytoskeleton fraction; 2) there are no associated membranes (determined by freeze-fracture); and 3) the sheets dissociate into filaments at the blastocyst stage of embryogenesis. Embedment-free sections of hamster eggs viewed at 60 kV show sheets running across the egg cytoplasm (Fig. 1). Although this approach provides excellent global views of the sheets and their reorganization during development, the mechanism of image formation for embedment-free sections does not permit evaluation of the sheets at high resolution.

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