نتایج جستجو برای: مولکول c60

تعداد نتایج: 6841  

2016
Kook-Han Kim Dong-Kyun Ko Yong-Tae Kim Nam Hyeong Kim Jaydeep Paul Shao-Qing Zhang Christopher B. Murray Rudresh Acharya William F. DeGrado Yong Ho Kim Gevorg Grigoryan

Learning to engineer self-assembly would enable the precise organization of molecules by design to create matter with tailored properties. Here we demonstrate that proteins can direct the self-assembly of buckminsterfullerene (C60) into ordered superstructures. A previously engineered tetrameric helical bundle binds C60 in solution, rendering it water soluble. Two tetramers associate with one C...

Journal: :Chemical communications 2007
Francesco Nastasi Fausto Puntoriero Sebastiano Campagna Stefano Schergna Michele Maggini François Cardinali Béatrice Delavaux-Nicot Jean-François Nierengarten

The first system containing a luminescent Ir(m) cyclometallated species and a functionalized C60 unit has been prepared; triplet-triplet energy transfer from the Ir-based MLCT state to the C60 triplet state occurs, leading to phosphorescence (lifetime, 4.8 ms) of the derivatized-C60 at 77 K.

2012
Jun Ren Sheng Meng Efthimios Kaxiras

Molecular heterojunctions, such as the one based on copper phthalocyanine (CuPc) and carbon fullerene (C60) molecules, are commonly employed in organic photovoltaic cells as electron donor–acceptor pairs. We have investigated the different atomic structures and electronic and optical properties of the C60/CuPc heterojunction through first-principles calculations based on density functional theo...

Journal: :Physical chemistry chemical physics : PCCP 2015
Yong Jin Jeong Dong-Jin Yun Jaeyoung Jang Seonuk Park Tae Kyu An Lae Ho Kim Se Hyun Kim Chan Eon Park

Solution-processed organic field effect transistors (OFETs), which are amenable to facile large-area processing methods, have generated significant interest as key elements for use in all-organic electronic applications aimed at realizing low-cost, lightweight, and flexible devices. The low performance levels of n-type solution-processed bottom-contact OFETs unfortunately continue to pose a bar...

2005
J. G. Che Hai-Ping Cheng

The geometric and electronic structures of a monolayer of C60 on a h-BN monolayer-covered Ni 111 surface are studied by first-principles calculations. The interaction between ions and electrons is described by the projector-augmented plane-wave method. The most stable structure of the h-BN/Ni 111 surface is found to be N on the top and B on the fcc site of Ni 111 . Upon adsorption, the structur...

2015
Ting Huang Bo Jin Fang Peng Cong Di Chen Rong Zong Zheng Yi He Jin Chu

A new functionalized [60]fullerene-glycidyl azide polymer (C60-GAP) was synthesized for the first time using a modified Bingel reaction of [60]fullerene (C60) and bromomalonic acid glycidyl azide polymer ester (BM-GAP). The product was characterized by Fourier transform infrared (FTIR), ultraviolet-visible (UV-Vis), and nuclear magnetic resonance spectroscopy (NMR) analyses. Results confirmed t...

2015
Chengbo Zhu Xiaolin Wang

The change of conductance of single-molecule junction in response to various external stimuli is the fundamental mechanism for the single-molecule electronic devices with multiple functionalities. We propose the concept that the conductance of molecular systems can be tuned from inside. The conductance is varied in C60 with encapsulated H2O, H2O@C60. The transport properties of the H2O@C60-base...

Journal: :Physical chemistry chemical physics : PCCP 2013
Kei-ichi Terada Makiko Oyama Katsuhiko Kanaizuka Masa-aki Haga Takao Ishida

We have investigated the effect of mixing an alcohol-soluble C60 derivative into a self-assembled monolayer (SAM), which consisted of a redox-active Ru-complex with multipoint anchoring groups, on an indium tin oxide surface. Angle-resolved X-ray photoelectron spectroscopy of the mixed SAM revealed that the C60 derivative was well incorporated into the redox-active Ru-complex SAM. In addition, ...

Journal: :Physical chemistry chemical physics : PCCP 2017
Hong-Tao Xue Gabriele Boschetto Michal Krompiec Graham E Morse Fu-Ling Tang Chris-Kriton Skylaris

In this work, the crystal properties, HOMO and LUMO energies, band gaps, density of states, as well as the optical absorption spectra of fullerene C60 and its derivative phenyl-C61-butyric-acid-methyl-ester (PCBM) co-crystallised with various solvents such as benzene, biphenyl, cyclohexane, and chlorobenzene were investigated computationally using linear-scaling density functional theory with p...

2011
Yongjun Li Xuegong Lei Ronald G. Lawler Yasujiro Murata Koichi Komatsu Nicholas J. Turro

W recently reported 1 distance-dependent nuclear spin relaxation (1/T1) of a series ofH2@C60 derivatives covalently linked to a nitroxide radical. The results show that T1 increases with the distance between the encapsulated H2 and the radical centers (r), and the relaxivity rate constant is proportional to r . Another aspect of interest for such H2@C60 derivatives is the distance dependence of...

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