scholarly journals Ordered and disordered solvates of C60 and CBrCl2H

CrystEngComm ◽  
2019 ◽  
Vol 21 (7) ◽  
pp. 1180-1185
Author(s):  
Jin Ye ◽  
Maria Barrio ◽  
René Céolin ◽  
Navid Qureshi ◽  
Philippe Negrier ◽  
...  
Keyword(s):  
Buckminster Fullerene

The formation of co-crystals is often unexpected; however, the Buckminster fullerene, for which many solvates are known, is an excellent system to study this tendency.

scholarly journals Controlled Monofunctionalization of Molecular Spherical Nucleic Acids on a Buckminster Fullerene Core

2021 ◽  
Author(s):  
Vijay Gulumkar ◽  
Antti Äärelä ◽  
Olli Moisio ◽  
Jani Rahkila ◽  
Ville Tähtinen ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Buckminster Fullerene ◽  
Spherical Nucleic Acids

scholarly journals The Stone–Wales transformation: from fullerenes to graphite, from radiation damage to heat capacity

2016 ◽  
Vol 374 (2076) ◽  
pp. 20150317 ◽  
Author(s):  
M. I. Heggie ◽  
G. L. Haffenden ◽  
C. D. Latham ◽  
T. Trevethan
Keyword(s):  
Heat Capacity ◽  
Density Functional ◽  
Local Density ◽  
Density Functional Theory Calculations ◽  
High Energy ◽  
Functional Theory ◽  
High Temperature Heat Capacity ◽  
Bond Rotation ◽  
Buckminster Fullerene ◽  
Equilibrium Concentrations

The Stone–Wales (SW) transformation, or carbon-bond rotation, has been fundamental to understanding fullerene growth and stability, and ab initio calculations show it to be a high-energy process. The nature and topology of the fullerene energy landscape shows how the I h -C 60 must be the final product, if SW transformations are fast enough, and various mechanisms for their catalysis have been proposed. We review SW transformations in fullerenes and then discuss the analogous transformation in graphite, where they form the Dienes defect, originally posited to be a transition state in the direct exchange of a bonded atom pair. On the basis of density functional theory calculations in the local density approximation, we propose that non-equilibrium concentrations of the Dienes defect arising from displacing radiation are rapidly healed by point defects and that equilibrium concentrations of Dienes defects are responsible for the divergent ultra-high-temperature heat capacity of graphite. This article is part of the themed issue ‘Fullerenes: past, present and future, celebrating the 30th anniversary of Buckminster Fullerene’.

Carbon Black and Fullerenes: New Discoveries in Early Formation Mechanisms and Nucleation

2000 ◽  
Vol 73 (5) ◽  
pp. 875-888 ◽  
Author(s):  
M. Pontier Johnson ◽  
R. W. Locke ◽  
J. B. Donnet ◽  
T. K. Wang ◽  
C. C. Wang ◽  
...  
Keyword(s):  
Carbon Black ◽  
Mass Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Nucleation Site ◽  
Formation Mechanisms ◽  
Clear Understanding ◽  
Transmission Electron ◽  
Nucleation Sites ◽  
Buckminster Fullerene ◽  
Secondary Ion

Abstract Recent studies on the formation of carbon black have resulted in the previously unreported finding of buckminster-fullerene, C60, in trace quantities in the toluene extractable materials. High-resolution transmission electron microscopy (HRTEM) experiments indicate the molecule may be functioning as a nucleation site in the formation of primary particles of carbon black. Time-of-flight secondary ion mass spectroscopy (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) provided the surface chemical analysis of conventional and experimental carbon blacks. The toluene extracts represented the precursor compounds present in the gaseous phase at the time of quench. The extracts were analyzed by Fourier transform infrared (FTIR) spectroscopy, liquid chromatography (LC)/mass spectroscopy (MS) and elemental composition. The data, taken as a whole, have led to a more clear understanding of the competitive chemical pathways occurring during the inception and nucleation of a primary particle of carbon black. Direct observation of nucleation sites and types are possible with HRTEM analysis.

scholarly journals Fullerene ion chemistry: a journey of discovery and achievement

2016 ◽  
Vol 374 (2076) ◽  
pp. 20150321 ◽  
Author(s):  
Diethard K. Böhme
Keyword(s):  
Electrostatic Interactions ◽  
Coulomb Repulsion ◽  
Reaction Rates ◽  
Chemistry Laboratory ◽  
Carbon Surface ◽  
Reaction Products ◽  
Ion Chemistry ◽  
Ion Formation ◽  
Multiply Charged ◽  
Buckminster Fullerene

An account is provided of the extraordinary features of buckminster fullerene cations and their chemistry that we discovered in our Ion Chemistry Laboratory at York University (Canada) during a ‘golden’ period of research in the early 1990s, just after C 60 powder became available. We identified new chemical ways of C 60 ionization and tracked novel chemistry of C 60 n + as a function of charge state ( n =1–3) with some 50 different reagent molecules. We found that multiple charges enhance reaction rates and diversify reaction products and mechanisms. Strong electrostatic interactions with reagent molecules were seen to reduce barriers to carbon surface bonding and charge-separation reactions, while intramolecular Coulomb repulsion appeared to localize charge on the surface or the substituent and so influence higher order chemistry, including ‘spindle’, ‘star’, ‘fuzzy ball’, ‘ball-and-chain’ and dimer ion formation. We introduced the notion of ‘apparent’ gas-phase acidity with measurements of proton-transfer reactions of multiply charged fullerene cations. We also explored the attachment of atomic metal cations to C 60 and their subsequent reactions. All these findings were applied to the possible chemistry of fullerene cations in the interstellar medium with a focus on multiply charged fullerene ion formation and the intervention of fullerene cations in fullerene derivatization and molecular synthesis, with a view to their possible future detection. This article is part of the themed issue ‘Fullerenes: past, present and future, celebrating the 30th anniversary of Buckminster Fullerene’.

An NMR Study of the Buckminster Fullerene Complex with Cyclodextrin in Aqueous Solution

1994 ◽  
Vol 2 (2) ◽  
pp. 189-194 ◽  
Author(s):  
Kenji Kanazawa ◽  
Hiroshi Nakanishi ◽  
Yasuko Ishizuka ◽  
Takayoshi Nakamura ◽  
Mutsuyoshi Matsumoto
Keyword(s):  
Aqueous Solution ◽  
Nmr Study ◽  
Fullerene Complex ◽  
Buckminster Fullerene

scholarly journals Two-dimensional inorganic analogues of graphene: transition metal dichalcogenides

2016 ◽  
Vol 374 (2076) ◽  
pp. 20150318 ◽  
Author(s):  
Manoj K. Jana ◽  
C. N. R. Rao
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Layered Materials ◽  
Two Dimensional ◽  
2D Layered Materials ◽  
Wide Range ◽  
Buckminster Fullerene ◽  
Metal Dichalcogenides ◽  
Layered Transition Metal

The discovery of graphene marks a major event in the physics and chemistry of materials. The amazing properties of this two-dimensional (2D) material have prompted research on other 2D layered materials, of which layered transition metal dichalcogenides (TMDCs) are important members. Single-layer and few-layer TMDCs have been synthesized and characterized. They possess a wide range of properties many of which have not been known hitherto. A typical example of such materials is MoS 2 . In this article, we briefly present various aspects of layered analogues of graphene as exemplified by TMDCs. The discussion includes not only synthesis and characterization, but also various properties and phenomena exhibited by the TMDCs. This article is part of the themed issue ‘Fullerenes: past, present and future, celebrating the 30th anniversary of Buckminster Fullerene’.

scholarly journals Effectiveness of Buckminster Fullerene Reinforcement on Mechanical Properties of FRP Composites

2014 ◽  
Vol 6 ◽  
pp. 1243-1252 ◽  
Author(s):  
P. Prasanthi ◽  
G. Sambasiva Rao ◽  
B. Umamaheswar Gowd
Keyword(s):  
Mechanical Properties ◽  
Frp Composites ◽  
Buckminster Fullerene

Mechanical and Morphological Properties of Buckminster Fullerene (C60) Added Glass Fiber Reinforced Polyamide 66 Multiscale Composites

2015 ◽  
Vol 1119 ◽  
pp. 218-222 ◽  
Author(s):  
Reyhan Keskin ◽  
İkilem Gocek ◽  
Guralp Ozkoc
Keyword(s):  
Glass Fiber ◽  
Morphological Structure ◽  
Fiber Reinforcement ◽  
Morphological Properties ◽  
Fiber Reinforced ◽  
Polyamide 66 ◽  
Glass Fiber Reinforced ◽  
Buckminster Fullerene ◽  
Glass Fiber Reinforcement ◽  
Multiscale Composites

In the present study, Buckminster Fullerene and glass fiber reinforced Polyamide 66 multiscale composites were produced using laboratory type twin screw extruder and injection molding machines, respectively. The glass fiber reinforcement was set as 30 wt % and samples A, B and C were produced with 0.1, 0.5 and 2.0 wt % Buckminster Fullerene addition besides the glass fiber reinforcement. Tensile tests were conducted and their results were compared with samples having only 30 wt % glass fiber reinforcement to investigate the effect of Buckminster Fullerene addition. The morphological structure of the multiscale composites were investigated using scanning electron microscopy (SEM) analysis.

Sign in / Sign up

Export Citation Format

Share Document