Results 141 to 150 of about 50,608 (301)

Forced Expression of Bcl-2 and Bcl-X(L) by Novel Water-Soluble Fullerene, C-60(Glucosamine)(6), Reduces Renal Ischemia/Reperfusion-Induced Oxidative Stress

, 2009
Apoptosis induced by oxidative stress, especially reactive oxygen species , resulting from ischemia/reperfusion would lead to organ dysfunction. C- 60(glucosamine)(6), a water- soluble fullerene with strong free radical scavenging activity, was applied ...
許世明;鄭劍廷, HSU, SU-MING;CHIEN, CHIANG-TING   +1 more
core  

Solution behaviour of C60 fullerene in N-Methylpyrrolidinone/toluene mixtures

, 2005
The aggregation of C60 and C70 fullerenes in solution of some solvent mixtures was determined by the polarity of the medium. Solute-solute interactions were favored with respect to solute-solvent interactions, resulting in the fullerenes aggregation.
Alfè M, Minutolo P, Ciajolo A, Barbella R, Bruno A   +4 more
core   +1 more source

Exploring the Boundaries of Aromaticity in Complex Structures and Excited States Through Computational Analysis

Chemistry – A European Journal, EarlyView.
Understanding aromaticity has evolved from benzene‐centric concepts to a broad multidimensional framework spanning organic, inorganic, and excited‐state systems. This review highlights ambiguities between magnetic, electronic, geometric, and energetic descriptors, emphasizing the need for unified, multi‐criteria approaches.
Sílvia Escayola, Miquel Solà, Albert Poater   +2 more
wiley   +1 more source

Radical ions in fullerene chemistry

, 1998
Siedschlag C, Torres-Garcia G, Wolff C, et al. Radical ions in fullerene chemistry. JOURNAL OF INFORMATION RECORDING. 1998;24(3-4):265-270.[60]fullerene is irradiated in the presence of several electron transfer photosensitizers. Upon addition of various
Mattay, Jochen, Ito, O, Ziegs, F, Torres-Garcia, G, Fujitsuka, M, Watanabe, A, Dunsch, L, Luftmann, H, Wolff, C, Siedschlag, C   +9 more
core  

Regioisomerism Rewires Optical and Ion Recognition Properties in Azulenylsumanenes—Curved Non‐Alternant π‐Systems

Chemistry – A European Journal, EarlyView.
Regioisomerism rewires orbital topology and electronic polarity in curved non‐alternant π‐systems, switching both optical response and alkali metal ion recognition from Na+ to Rb+ selectivity. ABSTRACT Herein, we explore the fundamental concept of combining the molecular curvature of a molecular fragment of buckminsterfullerene with the pronounced ...
Jakub Cyniak, Anna Mazur, Bartłomiej Pigulski, Hidehiro Sakurai, Artur Kasprzak   +4 more
wiley   +1 more source

Benzylic Oxidation of Pillar[5]Arene: From Homo‐ to Cross‐Conjugated Macrocyclic Systems

Chemistry – A European Journal, EarlyView.
Selective benzylic oxidations of pillar[5]arene have been carried out to generate all the possible oxidized derivatives containing from one up to five carbonyl subunits. Effects resulting from the homo‐ and the cross‐conjugation within this series of compounds have been investigated in details and analyzed with the help of DFT calculations.
Jorge Juan Marco‐Guimbao, Eric Meichsner, Unai Calvo, Michel Holler, Béatrice Delavaux‐Nicot, Jon M. Matxain, Juan Luis Delgado, Jean‐François Nierengarten, Iwona Nierengarten   +8 more
wiley   +1 more source

Synthesis, Structures, and Properties of Cyclopenta‐Fused Anthra[1,2‐a]anthracene Derivatives as New Polycyclic Aromatic Compounds

Chemistry – A European Journal, EarlyView.
Three new polycyclic aromatic compounds consisting of one or two five‐membered rings were synthesized by Scholl reaction or Pd‐catalyzed cyclization from fused anthracene derivatives. X‐ray analysis and DFT calculations revealed that these compounds have slightly twisted or curved structures.
Moe Kobayashi, Yu Watanabe, Eiji Tsurumaki, Masahiro Yamashina, Hiroshi Ikeda, Daiki Tauchi, Masashi Hasegawa, Shinji Toyota   +7 more
wiley   +1 more source

Chiral Cycloparaarylenes Incorporating Binaphthyl Units: Dramatic Effects of Peripheral Functionalization on (Chir)Optical Properties

Chemistry – A European Journal, EarlyView.
Chiral cycloparaarylenes (CPAs) incorporating binaphthyl units were synthesized. The methoxy‐substituted and methylenedioxy‐bridged systems adopt D3‐ and C3/C1‐symmetric structures, respectively. They exhibited distinct solid‐state emission and aggregation‐induced emission enhancement (AIEE).
Kazuto Takaishi, Kotaro Nakahara, Kasumi Nishiyama, Tadashi Ema   +3 more
wiley   +1 more source

Gas-phase Oxygenation and Sulfurization Processes of Fullerene Cations

The Astrophysical Journal
Atomic oxygen and sulfur are known to efficiently react with fullerenes and may thus form a long list of oxygenated and sulfurated fullerene species in the interstellar medium (ISM).
Nian Zhao, Xiaoyi Hu, Yanan Ge, Congcong Zhang, Aigen Li, Junfeng Zhen, Xuejuan Yang   +6 more
doaj   +1 more source

Fe–Ca‐Catalyzed Conversion of Cellulose Into Highly Ordered Graphitic Carbon Revealed by Solid‐State 13C NMR and Mössbauer Spectroscopy

Chemistry – A European Journal, EarlyView.
New insights into the mechanism of the structural transformation of cellulose into highly ordered graphitic carbon using an Fe–Ca bimetallic catalyst were obtained through complementary spectroscopic techniques, including Raman, solid‐state NMR, and Mössbauer.
Shamala Gowri Krishnan, Yannick Coppel, Jean‐François Meunier, Ange Nzihou   +3 more
wiley   +1 more source