Results 131 to 140 of about 905 (178)

Reply to the Correspondence on “How Aromatic Are Molecular Nanorings? The Case of a Six‐Porphyrin Nanoring”**

Angewandte Chemie, 2022
AbstractA recent article by Anderson and co‐workers challenges our conclusions on the aromaticity of the four oxidation states of a butadyine‐linked six‐porphyrin nanoring, based on the experimental 1H‐NMR data and some recent calculations they have performed using the BLYP35 functional.
Irene Casademont‐Reig, Luis Soriano‐Agueda, Eloy Ramos‐Cordoba, Miquel Torrent‐Sucarrat, Eduard Matito   +4 more
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Complexation of Carbon Nanorings with Fullerenes

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Takeshi Kawase, Masaji Oda
openaire   +1 more source

Cobalt-Based Superparamagnetic Nanorings

Nano Letters, 2004
Remarkable optical and magnetic properties were observed in a Co-thiol-polymer composite. The Co and the thiol ligand used to passivate the Co surface, instead of generating isolated nanoparticles, grow into nanorings with a radius around 2 nm. These structures consist of small clusters of metallic Co connected by alkylthiol chains.
Marin-Almazo, M, Garcia-Gutierrez, D, Gao, X, Elechiguerra, JL, Kusuma, VA, Sampson, WM, Miki-Yoshida, M, Dalton, AB, Escudero, R, Jose-Yacaman, M   +9 more
openaire   +3 more sources

Synthesis and Characterization of Gold Nanorings

Journal of Nanoscience and Nanotechnology, 2007
In the present work, we report the formation of Au nanorings on quartz substrate by thermal evaporation of Au on quartz and subsequent annealing in certain conditions as a function of metal volume fraction and annealing temperature. Optical extinction cross-sections measurements and atomic force microscopy (AFM) studies have been performed on the as ...
Mishra, Y.K., Kabiraj, D., Sulania, I., Pivin, J.C., Avasthi, D.K.   +4 more
openaire   +2 more sources

Bithiophene–Porphyrin Hybrid Nanorings

Chemistry – An Asian Journal, 2010
Covalently linked multiAin arrays have been extensively explored for their numerous applications in molecular devices such as models of photosynthetic systems, sensors, nonlinear optical (NLO) devices, and others. [1–3] The electronic coupling between the constituent porphyrin chromophores is a key parameter that determines the various important ...
Kenta, Osawa, Jianxin, Song, Ko, Furukawa, Hiroshi, Shinokubo, Naoki, Aratani, Atsuhiro, Osuka   +5 more
openaire   +2 more sources

Squeezing of magnetic flux in nanorings

Journal of Physics: Condensed Matter, 2012
We study superconducting and non-superconducting nanorings and look for non-classical features of magnetic flux passing through nanorings. We show that the magnetic flux can exhibit purely quantum properties in some peculiar states with quadrature squeezing.
J, Dajka, A, Ptok, J, Luczka
openaire   +2 more sources

Top‐Up Fabrication of Gold Nanorings

Chemistry – An Asian Journal, 2014
AbstractA simple method for the fabrication of gold nanorings with reliable material composition and reproducible morphology that relies on a combination of top‐down and bottom‐up techniques is presented. Here, lithographically defined hole arrays are used as templates for the deposition of gold nanoparticles.
Scheeler, S., Lehr, D., Kley, E., Pacholski, C.   +3 more
openaire   +3 more sources

Computational Generation of RNA Nanorings

2017
A variety of designed RNA ring structures (ranging from triangles to hexagonal rings) have been reported in the scientific literature. Designing self-assembling RNA ring structures from structural motifs is, however, a nontrivial problem as there are many combinations of motifs and linking helices.
Rishabh, Sharan, Eckart, Bindewald, Wojciech K, Kasprzak, Bruce A, Shapiro   +3 more
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Piezoelectric Nanorings and Nanosprings

Microscopy and Microanalysis, 2004
Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.
Z.L. Wang, X.Y. Kong, Y. Ding
openaire   +1 more source

Cyclooctatetraene‐Embedded Carbon Nanorings

Angewandte Chemie International Edition
Abstract With the prosperity of the development of carbon nanorings, certain topologically or functionally unique units‐embedded carbon nanorings have sprung up in the past decade. Herein, we report the facile and efficient synthesis of three cyclooctatetraene‐embedded carbon nanorings ( COTCNR
Sheng‐Nan Lei, Ling Zhu, Ning Xue, Xuedong Xiao, Le Shi, Duan‐Chao Wang, Zhe Liu, Xin‐Ru Guan, Yuan Xie, Ke Liu, Lian‐Rui Hu, Zhaohui Wang, J. Fraser Stoddart, Qing‐Hui Guo   +13 more
openaire   +2 more sources