Results 41 to 50 of about 4,190 (143)

Stabilizing the Hexacyanotrimethylenecyclopropane Electron Acceptor—Structural and Photophysical Characterization

Angewandte Chemie International Edition, EarlyView.
An improved low‐temperature synthesis enables the first comprehensive structural and spectroscopic characterisation of neutral hexacyanotrimethylenecyclopropane (CN6CP). Combined IR/Raman, UV–Vis and ssNMR analyses reveal a deeper understanding of its oxidation‐state‐dependent charge redistribution, σ‐aromaticity of the cyclopropane core, and redox ...
Jan P. Soyka, Alok Mahata, Anja Wiesner, Jennifer Hartfiel, Christian E. Halbig, Katharina J. Franke, Ute Resch‐Genger, Biprajit Sarkar, Siegfried Eigler   +8 more
wiley   +1 more source

Hydrogen Isotope Exchange in Pyridine Catalyzed by an Iron(II) Imido Complex: Counterion‐Directed Regioselectivity

Angewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Anionic high‐spin iron(II) imido complexes are catalysts for the hydrogen isotope exchange (HIE) reaction with pyridine as the substrate. The alkali metal counter‐cation plays critical roles in activating the substrate and facilitating deuteration. These complexes catalyze site‐selective α‐, α,β,γ‐, and β,γ‐deuteration of pyridine, where the counter ...
Bin Feng, Guorong Li, Yafei Gao, Nobuyuki Yamamoto, Maren Pink, Qian Peng, Jeremy M. Smith   +6 more
wiley   +2 more sources

Boosting the Photoluminescence of Au@Cu12 Nanoclusters via Strategic Fluorine‐Atom Ligand‐Shell Engineering

Journal of the Chinese Chemical Society, EarlyView.
The photophysical performance of gold‐doped copper‐rich nanoclusters can be tuned by surface functionalization. Subtle ligand modification enhances intermolecular interactions, thereby reducing nonradiative decay and markedly improving photoluminescence. Comparative photographs and quantum yield values (Φ = 55% vs.
Navya Indla, Wei‐Jung Yen, Yu‐Rong Ni, Jian‐Hong Liao, Xiaoping Wang, Michael N. Pillay, C. W. Liu   +6 more
wiley   +1 more source

Isolation and Structural Characterization of Se‐Hügerschoff Intermediates Derived From 4‐Bromoaniline

Journal of Heterocyclic Chemistry, EarlyView.
Isolation and characterization of Se‐brominated Hügerschoff intermediates enable structural and mechanistic insight into seleno‐Hügerschoff cyclization to 2‐aminobenzoselenazoles. ABSTRACT A brominated intermediate within the Hügerschoff reaction has long been postulated but never directly observed.
Adam W. E. Stewart, Tom Fellows, Lucy Li, Craig J. Morton, Glen P. Carter, Jonathan M. White   +5 more
wiley   +1 more source

Computational design of poly(p‐phenylene vinylene)‐based gas sensors: tunable reactivity and selectivity via side‐group functionalization

Polymer International, EarlyView.
Side‐group functionalization enhances the reactivity and optoelectronic properties of poly(p‐phenylene vinylene) (PPV) derivatives for chemical sensing. PPV‐CN and PPV‐NO2 display strong interactions and pronounced responses, providing molecular‐level insights for designing high‐performance polymer‐based sensors.
Bruno Hori Barboza, Rosangela A Maia, João Paulo Cachaneski‐Lopes, Augusto Batagin‐Neto   +3 more
wiley   +1 more source

Defects That Magnetize Beyond Monolayer PtSe2

Small, EarlyView.
The presence of a complex point defect consisting of a Pt vacancy (black circle) and a PtSe antisite (red circle) revives and increases the quenched magnetism in bilayer PtSe2. Magnetic properties can be further modulated by the presence of an Se vacancy (blue circle), which can convert the ferromagnetic behavior into antiferromagnetic when it occurs ...
Ilias M. Oikonomou, Danielle Douglas‐Henry, Mohammadreza Daqiqshirazi, Iva Plutnarová, Zdeněk Sofer, Thomas Brumme, Valeria Nicolosi, Thomas Heine   +7 more
wiley   +1 more source

Gas Adsorption‐Driven Electronic Modulation in WO3@Cu3(HHTP)2 Heterostructure: Mechanistic Origin of Selective Drift Resistance Room‐Temperature Formaldehyde Sensing

Small, EarlyView.
A WO3@Cu3(HHTP)2 heterostructure is engineered to achieve ultra‐sensitive, drift‐resistant formaldehyde detection at room temperature. Interfacial orbital hybridization and defect modulation enable adsorption‐driven electronic tuning, resulting in ppb‐level detection, rapid response, and high selectivity.
Mohammad Jamir Ahemad, Eunyoung Lee, Chanyoung Kim, Tae‐Wook Kim, Seoung‐Ki Lee, Sang Hyun Lee, Jae‐Hyun Lee, Byung Joon Moon, Sukang Bae   +8 more
wiley   +1 more source

Phase‐Controllable Synthesis and Property Modulation of Two‐Dimensional PAs3S3 Crystal

SusMat, EarlyView.
For the first time, phase‐controllable synthesis of 2D inorganic molecular crystals PAs3S3 are successfully realized by kinetics‐controlled vertical microspacing sublimation method. Due to the different arrangements of molecules, the two phases exhibit distinct SHG property, intermolecular forces, and Young's modulus of the R3m phase (21.31 GPa) is 69%
Jie Liu, Chao Wang, Yiran Ma, Yongshan Xu, Zongdong Sun, Pengfei Guan, Ke Ning, Maoqing Lu, Min Luo, Xing Lu, Yingshuang Fu, Meihui Wang, Huiqiao Li, Tianyou Zhai   +13 more
wiley   +1 more source

Organic Clusters With Well‐Defined Structure via Scaffold Confinement

Transformative Chemistry, EarlyView.
Using 3D‐shaped cyclic hydrocarbon scaffolds to spatially isolate electron‐rich moieties yields organic clusters with well‐defined structure, which will inspire further investigations into the in‐depth understanding of the underlying luminescence mechanism and facilitate quantitative and theoretical description of nonconventional luminophores ...
Xiang Chen, Lingzhong Wei, Guangxin Yang, Junhao Duan, Zhipeng Zhao, Yu Song Cai, Zihao Zhao, Yongyang Gong, Ben Zhong Tang, Wang Zhang Yuan   +9 more
wiley   +1 more source

Cyclometalated Au(III) Complexes With C*N^N, N^C*N, and C*N Ligands Through C–H Activation

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The complexes [Au(QPhPy)Cl][AuCl4], [Au(QPhCF3Py)Cl][AuCl4], [Au(QPhtBuPy)Cl][AuCl4], [Au(QPhPy)Cl]Cl, [Au(QPyPh)Cl2], [Au(QPyPhCF3)Cl2], [Au(QPyPhtBu)Cl2], [Au(bpyAn)Cl][AuCl4], and [Au(phenAn)Cl][AuCl4] (Q = 8‐quinolinyl, Ph = phenyl, An = anthracen‐9‐yl, Py = pyridyl, bpy = 2,2′′‐bipyridyl, phen = 1,10‐phenanthrolinyl) containing N*C^N, N*C, and NN ...
Pascal L. Jurzick, Leo Payen, Bruno Poti e Silva, Francisco Luan Rodrigues Lino, Vladimir Stojadinovic, Axel Klein   +5 more
wiley   +1 more source