Fragmentation and Coulomb explosion of multicharged small boron clusters

2012 ◽  
Vol 85 (23) ◽  
Author(s):  
Murat Tas ◽  
Nurten Akman ◽  
Cem Özdoğan ◽  
Ihsan Boustani
Keyword(s):  
Coulomb Explosion ◽  
Boron Clusters

Carborane Guests for Cucurbit[7]uril Facilitate Strong Binding and on Demand Removal

2020 ◽  
Author(s):  
Anna Kataki-Anastasakou ◽  
Jonathan C. Axtell ◽  
Selena Hernandez ◽  
RafalM. Dziedzic ◽  
Gary J. Balaich ◽  
...  
Keyword(s):  
Free State ◽  
Stimuli Responsive ◽  
Additional Consideration ◽  
Boron Clusters ◽  
High Affinity ◽  
On Demand ◽  
Azide Anion ◽  
Strong Binding

High affinity guest have been reported for the macrocyclic host cucurbit[7]uril (CB[7]), enabling widespread applications, but preventing CB[7] materials from being returned to their guest-free state for reuse. Here we present polyhedral boron clusters (carboranes) as strongly-binding, yet easily removable, guests for CB[7]. Aided by a Pd-catalyzed coupling of an azide anion, we prepared boron-functionalized 9<i>-</i>amino and 9-ammonium modified <i>ortho-</i>carboranes that bind to CB[7] with a <i>K<sub>a</sub></i>=10<sup>10</sup> M<sup>-1</sup>. Upon treatment with base, the <i>ortho</i>-carboranes<i> </i>readily undergo deboronation to yield anionic <i>nido</i>-carborane, a poor guest of CB[7], facilitating recovery of guest-free CB[7]. We showcase the utility of the modified <i>ortho</i>-carborane guest by recycling a CB[7]-functionalized resin. With this report, we introduce stimuli-responsive decomplexation as an additional consideration in the design of high affinity host-guest complexes.

Structure ofC3as Measured by the Coulomb-Explosion Technique

1986 ◽  
Vol 56 (15) ◽  
pp. 1559-1562 ◽  
Author(s):  
I. Plesser ◽  
Z. Vager ◽  
R. Naaman
Keyword(s):  
Coulomb Explosion

scholarly journals An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 810
Author(s):  
Federico Bella ◽  
Stefano De Luca ◽  
Lucia Fagiolari ◽  
Daniele Versaci ◽  
Julia Amici ◽  
...  
Keyword(s):  
Reduction Potential ◽  
Literature Analysis ◽  
Organic Electrolytes ◽  
Boron Clusters ◽  
Passivation Film ◽  
Metallic Magnesium ◽  
Passivation Layers ◽  
Magnesium Batteries ◽  
Nanostructured Metal Oxides ◽  
Nanostructured Metal

Magnesium-based batteries represent one of the successfully emerging electrochemical energy storage chemistries, mainly due to the high theoretical volumetric capacity of metallic magnesium (i.e., 3833 mAh cm−3 vs. 2046 mAh cm−3 for lithium), its low reduction potential (−2.37 V vs. SHE), abundance in the Earth’s crust (104 times higher than that of lithium) and dendrite-free behaviour when used as an anode during cycling. However, Mg deposition and dissolution processes in polar organic electrolytes lead to the formation of a passivation film bearing an insulating effect towards Mg2+ ions. Several strategies to overcome this drawback have been recently proposed, keeping as a main goal that of reducing the formation of such passivation layers and improving the magnesium-related kinetics. This manuscript offers a literature analysis on this topic, starting with a rapid overview on magnesium batteries as a feasible strategy for storing electricity coming from renewables, and then addressing the most relevant outcomes in the field of anodic materials (i.e., metallic magnesium, bismuth-, titanium- and tin-based electrodes, biphasic alloys, nanostructured metal oxides, boron clusters, graphene-based electrodes, etc.).

Density functional theory studies of boron clusters with exotic properties in bonding, aromaticity and reactivity

2021 ◽  
Author(s):  
Dongbo Zhao ◽  
Xin He ◽  
Meng Li ◽  
Bin Wang ◽  
Chunna Guo ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Atomic Clusters ◽  
Functional Theory ◽  
Boron Clusters ◽  
Size And Structure

Atomic clusters are unique in many perspectives because of their size and structure features and are continuously being applied for different purposes.

Structural Evolution of Boron Clusters on Ag(111) Surface‐from Atomic Chains to Triangular Sheet with Hexagonal Holes

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Xiuyun Zhang ◽  
Yi Sun ◽  
Jingyi Tang ◽  
Tianxia Guo ◽  
Min Zhou ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Boron Clusters ◽  
Atomic Chains

Extreme dynamics and energetics of Coulomb explosion of Xe clusters

2009 ◽  
Vol 11 (1) ◽  
pp. 111-124 ◽  
Author(s):  
Andreas Heidenreich ◽  
Isidore Last ◽  
Joshua Jortner
Keyword(s):  
Coulomb Explosion
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