Results 141 to 150 of about 21,344 (285)

Evaluation of Weak Interactions Between the Ring Component and Axle Component in [2]Rotaxanes With 1,3‐Diyne Moiety

Chemistry – A European Journal, EarlyView.
The rotaxane architecture is a powerful tool to probe weak interactions. The interaction between the ring component and the axle components was estimated by quantitative conformational analysis of the rotaxanes by 1H NMR spectroscopy. Theoretical calculations revealed that C─H⋯N interactions and steric effects would be responsible for the preferred ...
Taichi Ohseki, Akira Nagayama, Jun Miyazaki, Yusuke Yoshigoe, Tairin Kawasaki, Shoichi Hosoya, Shinichi Saito   +6 more
wiley   +1 more source

Engineering Triplet Formation versus Symmetry-Breaking Charge Separation in Shape-Persistent Perylene Diimide Macrocycles. [PDF]

JACS Au
Guo Y, Wang S, Zheng T, Deng G, Zeng C, Fu J, Liu X, Wang Z, Xia A.   +8 more
europepmc   +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

o-Terphenyl-Based Family of Conjugated Macrocycles: Selective Recognition of Phenylalanine in Water and Interaction With Insulin. [PDF]

Angew Chem Int Ed Engl
Ghule S, Sarkar S, Rodriguez MEP, Spector M, Hampel F, Kataev EA.   +5 more
europepmc   +1 more source

Vibrational Circular Dichroism Spectra of 2,5‐Diaminoterephtalate Macrocycles Reveal Distant Vibrational Exciton Coupling

Chemistry – A European Journal, EarlyView.
The energy level diagrams for the ν(C═O) and the δ(N─H) vibrations, resulting of combining in‐phase and out‐of‐phase modes on the basis of their local symmetries, was built by applying the exciton coupling theory to a new class of chiral macrocycles, based on the 2,5‐diaminoterephthalate scaffold.
Samara Medina, Krzysztof Nowak, Marek Grzybowski, Juan Casado, Francisco J. Ramírez   +4 more
wiley   +1 more source

Predictive machine learning models for rational permeability design in de novo macrocycle engineering: a review. [PDF]

J Cheminform
Albrijawi MT, Alhajj R.
europepmc   +1 more source

A Self‐Enhanced Tandem Catalytic System for Olefin‐to‐Diol Conversion Powered by Single‐Atom Fe Catalysts With In Situ Generated Acid

EcoEnergy, EarlyView.
A single‐atom iron catalyst with well‐defined Fe–N4 sites enables a tandem epoxidation‐hydrolysis process for converting terminal olefins to 1,2‐diols. The in situ‐generated isobutyric acid drives the hydrolysis step, affording broad substrate scope and excellent recyclability.
Tao‐Tao Liu, Shuai‐Long Yang, Xiao‐Hui Huang, Jun Liang, Peng‐Chao Shi, Rui Xu, Yuan‐Biao Huang, Rong Cao   +7 more
wiley   +1 more source

Chemoselective C-Terminal Activation Platform for Direct Conversion of Native Linear Peptides into Thiazoline/Thiazole Macrocycles. [PDF]

Org Lett
Le BQG, Kwon M, Raj M.
europepmc   +1 more source

Molecular Modification Strategies for CO2 Electroreduction to C2+ Products: Classifications, Mechanisms, Advances, and Perspectives

EcoEnergy, EarlyView.
This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley   +1 more source

Connectivity-Rewired Construction of Hydrogen-Bonded Azo-Macrocycles Enables Photoswitchable Recognition of Lithium Ions. [PDF]

Molecules
Tan C, Fu K, Yang Z, Qin S, Cai Y, Feng W, Li X, Yuan L.   +7 more
europepmc   +1 more source