Results 51 to 60 of about 618 (167)

Next‐Generation Carbon‐Based Anodes for Alkali Metal‐Ion Batteries: Recent Progress on Biphenylene and Emerging Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advances in carbon‐based anodes for alkali metal‐ion batteries are critically reviewed, with emphasis on biphenylene and other emerging carbon allotropes. Biphenylene exhibits exceptional theoretical electrochemical properties beyond conventional graphite, highlighting its strong potential as a next‐generation anode material once scalable ...
Adewale Hammed Pasanaje, Nirpendra Singh
wiley   +1 more source

Aromaticity in Octahedral Cyclopentadienylberyllium Transition Metal Clusters

European Journal of Inorganic Chemistry, EarlyView.
Density functional theory studies on (CpBe)6M (M = Mn to Cu) complexes related to the experimentally known (CpBe)6Ni predict octahedral or distorted octahedral structures. The CpBe ligands are weak‐field ligands stabilizing high formal transition metal oxidation states by pπ → dπ forward electron donation to the central transition metal. (CpBe)6Ni is a
Huidong Li, Jinfeng Luo, Haoyu Chen, Qunchao Fan, Zhixiang Fan, Gregory H. Robinson, R. Bruce King, Henry F. Schaefer III   +7 more
wiley   +1 more source

Reversal of Clar's Aromatic‐Sextet Rule in Ultrashort Single‐End‐Capped [5,5] Carbon Nanotubes

ChemistryOpen, 2020
The three‐fold HOMO‐LUMO gap oscillation, typical of finite length armchair carbon nanotubes (CNT), has a major effect on the magnetic response of ultrashort, single‐end‐capped [5,5] carbon nanotubes to a perturbing magnetic field parallel to the main ...
Dr. Guglielmo Monaco, Prof. Emeritus Lawrence T. Scott, Prof. Riccardo Zanasi   +2 more
doaj   +1 more source

A Physical Organic Odyssey: From the Ultrafast Dynamics of Carbenes and Nitrenes to Contemporary Chemical Biology and Drug Discovery

Journal of Physical Organic Chemistry, Volume 39, Issue 9, September 2026.
Physical organic chemistry transforms photoaffinity labeling from empirical photochemistry into rational probe design. By measuring reactive‐intermediate lifetimes, pathways, and selectivity, Platz's legacy connects carbene and nitrene mechanisms to modern chemoproteomics, enabling more precise protein labeling and drug‐discovery maps.
Bin Yang, Jin Wang
wiley   +1 more source

Aromaticity‐Dependent Memristive Switching

Advanced Electronic Materials
In recent years, memristors have drawn attention as non‐volatile memory devices for advanced computing engineering. The features of memristors, such as hysteresis, high resistance state to low resistance state ratio, retention time, etc., are determined ...
Ewelina Cechosz, Lulu Alluhaibi, Tomasz Mazur, Andrzej Sławek, Nanjan Pandurangan, Konrad Szaciłowski   +5 more
doaj   +1 more source

Interpreting Aromaticity and Antiaromaticity through Bifurcation Analysis of the Induced Magnetic Field

ChemistryOpen, 2019
In all molecules, a current density is induced when the molecule is subjected to an external magnetic field. In turn, this current density creates a particular magnetic field.
Dr. Ricardo Pino‐Rios, Prof. Gloria Cárdenas‐Jirón, Prof. Lina Ruiz, Prof. William Tiznado   +3 more
doaj   +1 more source

Variously Substituted Cyclopenta[2,1‐b:3,4‐b’]difluorenyl Radicals: A Validation of Clar's Rule

European Journal of Organic Chemistry, Volume 29, Issue 30, 12 August 2026.
Clar's empiric rule implies that the most contributing resonance formula is that with the maximum number of fully intact benzene rings. This is now further supported experimentally by the synthesis of two further, differently substituted cyclopenta[2,1‐b:3,4‐b’]difluorenyl radicals.
Ali S. Acan, Johannes Werner, Rabea J. Schneider, Joachim Podlech   +3 more
wiley   +1 more source

Pyridine‐Fused Bis(azacorrole)s: Easily Accessible NIR III Absorbing Cation Radicals and Biradicaloids of Antiaromatic Ground State

Advanced Science
A family of pyridine‐fused bis(porphyrinoids) is obtained, including constitutionally isomeric bis(azacorrole)s, azacorrole‐oxacorrole, as well as azacorrole‐norcorrole heterodimers by two distinct synthetic approaches.
Sha Li, Shaowei Zhang, Xiaofang Li, Oskar Smaga, Kinga Szydełko, Miłosz Pawlicki, Piotr J. Chmielewski   +6 more
doaj   +1 more source

Highly Electron‐Donating Antiaromatic N,N′‐Dimethyldiazaporphyrins via Reductive Dimethylation

ChemistryEurope
Ni(II) N,N′‐dimethyl‐5,15‐diazaporhyrins are efficiently prepared through reductive dimethylation of 5,15‐diazaporphyrin Ni(II) complexes with sodium dispersion in the presence of dimethyl sulfate.
Kohei Ohtake, Hideaki Takano, Hiroshi Shinokubo   +2 more
doaj   +1 more source

TOPOLOGIA DOS ORBITAIS MOLECULARES DE POLIENOS PARA DEDUZIR ENERGIAS RELATIVAS E AVALIAR AROMATICIDADE

Química Nova
A didactic alternative approach is proposed for deducing the molecular orbital topology of acyclic and cyclic polyenes and then evaluating their bonding, antibonding, and nonbonding character.
Silvio Cunha
doaj   +1 more source