Results 141 to 150 of about 29,373 (276)

Bromine [PDF]

Annals of the ICRP, 1983
openaire   +2 more sources

Quantifying Optical Disorder in CsFaPb(Br,I)3 Perovskites via Urbach Energy Analysis Using OPAL2 Fresnel‐Based Simulations

Advanced Physics Research, EarlyView.
ABSTRACT This study examines light‐matter interactions in CsFAPb(Br, I)3 perovskite thin films by analyzing their absorption, reflection, and emission properties using Fresnel‐based OPAL2 simulations. The optical spectra show sharp absorption edges at 1.55 – 1.60 eV for CH3NH3PbI3 and triple‐cation perovskites, which blue‐shift to ∼1.8 eV with ...
Miller Shatsala, Celline Awino, Maxwell Mageto, Hussein Golicha   +3 more
wiley   +1 more source

Rational Design of Donor‐Acceptor Oligomers for Enhanced Charge Separation

Advanced Physics Research, EarlyView.
How can molecular symmetry be broken to maximize photoinduced charge separation? Through first‐principles analysis of 22 DTP‐based donor‐acceptor ternary oligomers, this work establishes that combining architectural asymmetry with site‐selective acceptor fluorination creates an ideal electrostatic landscape for frontier orbital segregation.
Jannik Theile, Michele Guerrini, Surender Kumar, Caterina Cocchi   +3 more
wiley   +1 more source

Metal‐Free Covalent Organic Frameworks for Photocatalytic CO2 Reduction

ChemistryEurope, EarlyView.
This review presents an environmentally sustainable strategy to address the critical issue of escalating atmospheric CO2 levels. It explores the application of metal‐free covalent organic frameworks in a photocatalytic approach, offering a green and efficient strategy for carbon dioxide reduction and contributing to climate change mitigation.
Supriti Dutta, Akhtar Alam, Pekham Chakrabortty, Pradip Pachfule   +3 more
wiley   +1 more source

Synthesis and Characterization of π‐Extended Azulenes via Nucleophilic Substitution and Intramolecular Cyclization of 5‐Alkynyl‐6‐Fluoroazulenes

ChemistryEurope, EarlyView.
A modular synthetic approach enables the preparation of azulene‐fused heterocycles via nucleophilic aromatic substitution followed by intramolecular cyclization of alkynyl fluoroazulenes. The method allows the incorporation of various heteroatoms (N, O, S, Se, and Te), leading to structurally diverse heteroannulated azulenes.
Martin C. Dietl, Matthias Scherr, Christopher Hüßler, Henrik T. Habeck, Carmen L. M. Henel, Jürgen Graf, Frank Rominger, Matthias Rudolph, A. Stephen K. Hashmi   +8 more
wiley   +1 more source

Site-selective bromination of anthracene-maleimide Diels-Alder crystals for tunable afterglow and white light emission. [PDF]

Chem Sci
Yang G, Zhu T, Chen X, Duan J, Zhao Z, Yuan WZ.   +5 more
europepmc   +1 more source

Rubrolides A, D, P, T, U: Total Syntheses and Antibacterial Evaluation of Highly Brominated Marine Natural Products

ChemistryEurope, EarlyView.
Following the Danube Flow. The first total syntheses of highly brominated rubrolides T, U, and U‐analog, together with the efficient and divergent syntheses of rubrolides A, D, and P. The dibrominated key intermediate, obtained via a Suzuki‐Miyaura cross‐coupling reaction, is the centerpiece of the synthesis.
Jasmin Janneschütz, Paul G. Schebek, Alexander Meyer, Celina Haller, Sophia Khom, Wolfgang R. Streit, Ifey Alio, Nina Schützenmeister   +7 more
wiley   +1 more source

Convenient Benzylic Bromination of 2‑Hydroxy-5-methylisophthalaldehyde. [PDF]

ACS Omega
Žoglo N, Mastitski A, Ivanistsev V, Kongi N.   +3 more
europepmc   +1 more source

Research Progress of Polyoxometalate‐Integrated Frameworks: Syntheses, Properties, and Applications

ChemistryEurope, EarlyView.
This review systematically summarizes the integration of polyoxometalates with covalent organic frameworks, metal‐organic frameworks, hydrogen‐bonded organic frameworks, and emerging porous hosts. It highlights synergistic effects, synthesis strategies, and applications in catalysis, energy storage, sensing, and biomedicine, while addressing current ...
De‐Yin Wang, Zhang‐Di Liu, Rui Xing, Zi‐Hao Wei, Zaixiang Zhang, Yang Yang, Jin Zhu   +6 more
wiley   +1 more source

A Green, Facile Method for Selective α‑Bromination of Flavanones. [PDF]

ACS Omega
Sigmon AJ, Laremore TN, Yennawar H, Guerin GC, Pelletier B, Dallal S, Aggroia S, Englert M, George C.   +8 more
europepmc   +1 more source