Results 31 to 40 of about 23,422 (216)

Controlling quantum transport through a single molecule

, 2005
We investigate multi-terminal quantum transport through single monocyclic aromatic annulene molecules, and their derivatives, using the nonequilibrium Green function approach in the self-consistent Hartree-Fock approximation.
Cardamone, D. M., Mazumdar, S., Stafford, C. A.   +2 more
core   +1 more source

Novel loop-like aromatic compounds: a further step on the road to nanobelts and nanotubes

Beilstein Journal of Organic Chemistry, 2010
The synthesis and crystal structural characterization of new compounds 2–6 were accomplished. As a common synthetic methodology, the Diels–Alder reaction was applied to 9,9′,10,10′-tetradehydrodianthracene (TDDA) (7) to furnish the [12]annulenes 2 and 3 [
Venkataramana Rajuri, Dariush Ajami, Gaston R. Schaller, Christian Näther, Rainer Herges   +4 more
doaj   +1 more source

Lumineszenzspektroskopie

CHIMIA, 1976
Three topics in luminescence spectroscopy are discussed: (i) Highly resolved spectra have been observed in Shpolskii matrices (microcrystalline n-alkanes). Recently, comparable resolution was achieved in organic glasses using narrowband excitation. (ii)
Urs P. Wild
doaj   +1 more source

Quantum-interference-controlled three-terminal molecular transistors based on a single ring-shaped-molecule connected to graphene nanoribbon electrodes

, 2010
We study all-carbon-hydrogen molecular transistors where zigzag graphene nanoribbons play the role of three metallic electrodes connected to a ring-shaped 18-annulene molecule.
Branislav K. Nikolić, J. Bernholc, Kamal K. Saha, Vincent Meunier, Wenchang Lu, Y. V. Nazarov   +5 more
core   +1 more source

Multiterminal single-molecule--graphene-nanoribbon thermoelectric devices with gate-voltage tunable figure of merit ZT

, 2011
We study thermoelectric devices where a single 18-annulene molecule is connected to metallic zigzag graphene nanoribbons (ZGNR) via highly transparent contacts that allow for injection of evanescent wave functions from ZGNRs into the molecular ring ...
Markussen, Troels, Nikolic, Branislav K., Saha, Kamal K., Thygesen, Kristian S.   +3 more
core   +1 more source

Cembranoids from a Chinese Collection of the Soft Coral Lobophytum crassum

Marine Drugs, 2016
Ten new cembrane-based diterpenes, locrassumins A–G (1–7), (–)-laevigatol B (8), (–)-isosarcophine (9), and (–)-7R,8S-dihydroxydeepoxysarcophytoxide (10), were isolated from a South China Sea collection of the soft coral Lobophytum crassum, together with
Min Zhao, Shimiao Cheng, Weiping Yuan, Yiyuan Xi, Xiubao Li, Jianyong Dong, Kexin Huang, Kirk R. Gustafson, Pengcheng Yan   +8 more
doaj   +1 more source

Density matrix renormalization group study of dimerization of the Pariser-Parr-Pople model of polyacetilene

, 1998
We apply the DMRG method to the Pariser-Parr-Pople hamiltonian and investigate the onset of dimerization. We deduce the parameters of the hopping term and the contribution of the sigma bonds from ab initio calculations on ethylene. Denoting by R_{ij} the
Bendazzoli, G. L., Evangelisti, S., Fano, G., Ortolani, F., Ziosi, L.   +4 more
core   +1 more source

Advancements in Graphdiyne‐Based Multiscale Catalysts for Green Hydrogen Energy Conversion

Advanced Intelligent Discovery, EarlyView.
This review systematically explores the fundamental characteristics of graphdiyne (GDY), cutting‐edge field of GDY‐based multiscale catalysts within sustainable energy conversion systems.Special emphasis is placed on the structure‒property relationships in different reactions.
Qian Xiao, Lu Qi, Siao Chen, Yurui Xue
wiley   +1 more source

Hückel and Möbius annulenes: relationships between their Hückel-level orbitals and their Hückel-level energies

Química Nova, 2000
The problem of convenient access to quantitative Hückel-level descriptions of Möbius and Hückel annulenes for undergraduate lectures about aromaticity is discussed.
Richard Francis Langler, Guillermo Salgado, Carlos Mendizabal   +2 more
doaj   +1 more source

Interplay between quantum interference and Kondo effects in nonequilibrium transport through nanoscopic systems

, 2011
We calculate the finite temperature and non-equilibrium electric current through systems described generically at low energy by a singlet and \emph{two} spin doublets for $N$ and $N \pm 1$ electrons respectively, coupled asymmetrically to two conducting ...
Aligia, A. A., Hallberg, K., Roura-Bas, P., Tosi, L.   +3 more
core   +1 more source