Results 161 to 170 of about 132,748 (328)

Synthesis and Characterization of Carbazole‐Containing Aza[7]helicenes

Chemistry – A European Journal, EarlyView.
Double ortho fusion led to different aza[7]helicene frameworks showing strong acidochromic behavior, singlet excited energies being more than twice the triplet energy, and high racemization barriers, allowing chiral resolution and ECD measurements. ABSTRACT Azahelicenes have attracted significant interest due to their intrinsic axial chirality and ...
Inka Marten, Melina E. A. Dilanas, Joachim Podlech   +2 more
wiley   +1 more source

Mechanism of Ti-Catalyzed Oxidative Nitrene Transfer in [2 + 2 + 1] Pyrrole Synthesis from Alkynes and Azobenzene.

Journal of the American Chemical Society, 2018
Zachary W. Davis-Gilbert, Xuelan Wen, Jason D. Goodpaster, Ian A. Tonks   +3 more
semanticscholar   +1 more source

Mimicking The Photosynthetic Special Pair With Aluminum(III) Porphyrin Homodimer – Fullerene (C60) Supramolecular Assemblies Capable of Long‐Lived Charge Separation

Chemistry – A European Journal, EarlyView.
The axial‐bonding of aluminum(III) porphyrins was used to create two covalently linked special‐pair mimics to probe charge‐transfer between a porphyrin dimer and a C60 unit for artificial photosynthesis. Although excitonic coupling between the porphyrins is weak, incorporation of a second porphyrin markedly increases both the yield and lifetime of the ...
Stefan Charon, Jatan K. Sharma, Niloofar Zarrabi, Peyton Ellis, Paul A. Karr, Art van der Est, Francis D'Souza, Prashanth K. Poddutoori   +7 more
wiley   +1 more source

Cooperation-Enhanced N-H···π Hydrogen Bonds: Liquid Pyrrole and Its Mixture with Benzene. [PDF]

J Phys Chem Lett
Sella A, Wilson M, Novoveska M, Headen TF, Clancy AJ, Skipper NT, Di Mino C.   +6 more
europepmc   +1 more source

Metalloporphyrin‐Based Cathode for Rechargeable Magnesium‐Ion Batteries: Copper Leaching and Interphase Formation

ChemSusChem, EarlyView.
The initial cycling of [5,15‐bis(ethynyl)‐10,20‐diphenylporphinato]copper(II) electrodes in rechargeable Mg‐ion batteries is studied using electrochemical, spectroscopic, microscopic, and spectrometric methods such as total reflection X‐ray fluorescence spectrometry and time‐of‐flight secondary ion mass spectrometry .
Tom Philipp, Riccarda Müller, Till Ortmann, Christine Kern, Marcus Rohnke, Simon Schauer, Mika Lindén, Ebrahim Abouzari‐Lotf, Thomas Smok, Maximilian Fichtner, Shirin Shakouri, Mario Ruben, Kerstin Leopold, Christine Kranz   +13 more
wiley   +1 more source

Orthogonal Biosynthesis of Pyrrolamides through Dehydration by a Pathway-Specific Glycoside Hydrolase-Like Enzyme in Gram-Positive Bacteria. [PDF]

J Am Chem Soc
Kanki D, Kurosawa S, Yoshida A, Awakawa T, Kosono S, Nishiyama M.   +5 more
europepmc   +1 more source

Design of B,N Co‐Doped Carbon Spheres for Highly Effective Back Interface Engineering in Planar Carbon‐Based Perovskite Solar Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The energy level mismatch of the perovskite/carbon back interface is decreased remarkably by using B, N co‐doped carbon sphere electrode in C‐PSCs, leading to effective charge carrier separation, extraction, and transport at the back interface. Combined with further buried modification using AMPA, the power conversion efficiency of the C‐PSCs is up to ...
Yujie Gao, Chang Xu, Xueze Liu, Chang Zhao, Wanran Zhang, Xuan Li, Yanli Zeng, Mingxing Wu   +7 more
wiley   +1 more source

Pyrrole without Life: Reaction of Aminomethylene with the Propargyl Radical. [PDF]

J Phys Chem Lett
McClish R, Schleier D, Kamer J, Kasper T, Hemberger P, Bodi A, Bouwman J.   +6 more
europepmc   +1 more source

Bottlenecks‐Breaking in Zinc‐Iodine Batteries Toward Practical Implementation: A Review and Perspective

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Aqueous zinc–iodine batteries (Zn–I2Bs) offer promise for grid storage due to safety and cost advantages yet face critical bottlenecks: severe self‐discharge (polyiodide shuttling and HER), limited energy density, sluggish kinetics, and zinc anode instability.
Jia‐Lin Yang, Jun‐Ming Cao, Dai‐Huo Liu, Xing‐Long Wu   +3 more
wiley   +1 more source

Regioselective Synthesis of 1,2,3-Trisubstituted Pyrroles via Addition-Cyclization of Crotonate-Derived Sulfonium Salts with a Carboxylic Acid and an Amine. [PDF]

J Org Chem
Chavan LN, Pashikanti G, Goodman MM, Liebeskind LS.   +3 more
europepmc   +1 more source