نتایج جستجو برای: fullerene

تعداد نتایج: 4727  

Journal: :Molecules 2013
Martha Mojica Francisco Méndez Julio A Alonso

Density Functional Theory has been used to model the Diels-Alder reactions of the fullerene fragments triindenetriphenilene and pentacyclopentacorannulene with ethylene and 1,3-butadiene. The purpose is to prove the feasibility of using Diels-Alder cycloaddition reactions to grow fullerene fragments step by step, and to dimerize fullerene fragments, as a way to obtain C₆₀. The dienophile charac...

2014
L. B. Piotrovsky B. L. Milman D. N. Nikolaev N. V. Lugovkina E. V. Litasova M. A. Dumpis

MALDI LIFT-TOF/TOF mass spectra of fullerene C60 and six of its derivatives, methano[60]fullerene carboxylic acid, its ethyl ester, diethyl methano[60]fullerene dicarboxylate, and three isomeric tetraethyl bis-methano[60]fullerene tetracarboxylates (compounds I–VII, respectively) as model analytes were recorded and discussed. This technique used in mass spectrometry for the first time is propos...

Journal: :Colloids and surfaces. B, Biointerfaces 2011
Vukosava Milic Torres Mihalj Posa Branislava Srdjenovic Ana Luísa Simplício

Fullerene (C(60)), the third carbon allotrope, is a classical engineered material with the potential application in biomedicine. However, extremely high hydrophobicity of fullerene hampers its direct biomedical evaluation and application. In this work, we investigated the solubilization of fullerene using 9 different solubility enhancers: Tween 20, Tween 60, Tween 80, Triton X-100, PVP, polyoxy...

Journal: :SIAM J. Discrete Math. 2009
Dong Ye Zhongbin Qi Heping Zhang

A fullerene graph F is a cubic 3-connected plane graph with exact 12 pentagons and other hexagons. Let M be a perfect matching of F . A cycle C of F is M -alternating if and only if the edges of C appear alternately in and off M . A set H of disjoint hexagons of F is called a resonant pattern if F has a perfect matching M such that all hexagons in H are M -alternating. A fullerene graph F is k-...

2013
Nateshan Anil S. S. Vutukuru K. S. R. Sivasai Jayasree Ganugapati

Nanotechnology offers many societal benefits and this have prompted the rapid growth of engineered nanomaterials. Fullerene (C60) due to its unique properties has become an important nanomaterial in biomedical and biotechnological applications. Once in water, Fullerene forms stable suspended aggregates and thus become bioavalable to aquatic biota. The fate and transport of fullerene in the aqua...

ژورنال: :international journal of new chemistry 0

in this study, the drug atenolol on c60 fullerene were the drug and its derivatives were optimized fullerene. nbo and nmr for complex computations required in the hf/6-31g (d) and b3lyp/6-31g (d) quantum chemistry method was used. mechanical quantum calculations in theory level of b3lyp/6-31g were performed on structure of atenolol and nano fullerene atenolol with different positions of linking...

Journal: :Chemical communications 2014
Naohiko Ikuma Saori Inaba Ken Kokubo Takumi Oshima

Triazoliumfullerene was first prepared by the [3+2] cycloaddition of in situ generated 1,3-diaza-2-azoniaallene with fullerene and was characterized by the dispersed positive charge over the fullerene sphere associated with periconjugation. This new type of amphiphilic fullerene tended to form vesicles and crystalline aggregates after the casting of THF or MeOH solutions.

Journal: :Chemical communications 2016
Di Chao Tong-Xin Liu Nana Ma Pengling Zhang Zheng Fu Jinliang Ma Qingfeng Liu Fengjin Zhang Zhiguo Zhang Guisheng Zhang

A novel Ag(I)-induced three-component annulation reaction of [60]fullerene with sulfonylhydrazones and nitriles has been developed for the efficient synthesis of diverse disubstituted [60]fullerene-fused dihydropyrroles. The reaction exhibits a broad substrate scope and excellent functional-group tolerance, and also allows for the synthesis of fullerene-bound macromolecules.

Journal: :Nanoscale 2015
Yannan Yang Meihua Yu Hao Song Yue Wang Chengzhong Yu

Well-dispersed mesoporous hollow silica-fullerene nanoparticles with particle sizes of ∼50 nm have been successfully prepared by incorporating fullerene molecules into the silica framework followed by a selective etching method. The fabricated fluorescent silica-fullerene composite with high porosity demonstrates excellent performance in combined chemo/photodynamic therapy.

Journal: :iranian journal of mathematical chemistry 2014
f. koorepazan-moftakhar kh. fathalikhani

in this paper, we calculate the eccentric connectivity index and the eccentricity sequence of two infinite classes of fullerenes with 50 + 10k and 60 + 12k (k in n) carbon atoms.

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