Results 41 to 50 of about 766 (181)

Spin Crossover in New Iron(II) Coordination Compounds with Tris(pyrazol-1-yl)Methane

Crystals, 2020
We review here new advances in the synthesis and investigation of iron(II) coordination compounds with tris(pyrazol-1-yl)methane and its derivatives as ligands.
Olga G. Shakirova, Ludmila G. Lavrenova
doaj   +1 more source

One‐Shot Pd(II)‐Catalyzed Multiple C–H Activation Enables Modular Construction of Fluorenylidene Oxindole‐Based Multi(Polycyclic) Aromatic Enes

Chemistry – A European Journal, EarlyView.
A one‐shot Pd(II)‐catalyzed C─H activation strategy enables the rapid conversion of simple linear propiolamides into structurally diverse mono‐, di‐, and tri‐olefin‐bridged MPAEs. This cascade process orchestrates up to six sequential C–H activations in a single operation, providing streamlined access to highly conjugated architectures.
Haiyu Wang, Kouki Sakata, Takuma Sato, Masahiro Terada, Tienan Jin   +4 more
wiley   +1 more source

Catalyst‐Free Selective Reduction of Nitrogen Dioxide to Nitric Oxide

Chemistry – A European Journal, EarlyView.
Common main group reductants selectively convert nitrogen dioxide to nitric oxide in a catalyst‐free manner. Computational studies suggest divergent reaction pathways depending on the reductant employed. Where boranes and silanes proceed via a two‐electron process, and hydrogen surrogates undergo stepwise one‐electron processes.
Awais W. Seyyad, Agamemnon E. Crumpton, Reece Lister‐Roberts, Meera Mehta   +3 more
wiley   +1 more source

A High-Realism and Cost-Effective Training Simulator for Extracorporeal Membrane Oxygenation

IEEE Access, 2021
Medical simulators, employed in extracorporeal membrane oxygenation (ECMO), are burdened with costly equipment and low-fidelity methodologies. This dichotomy necessitated a new approach that eliminates high-costs and integrates with the critical care ...
Abdullah Alsalemi, Yahya Alhomsi, Faycal Bensaali, Ali Ait Hssain   +3 more
doaj   +1 more source

β‐Ketonitrile‐Modified Prodan Derivatives as Large‐Stokes‐Shift Solvatochromic Fluorophores With Enhanced Brightness and Ratiometric Thermometric Response

Chemistry – A European Journal, EarlyView.
We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa, Takuya Tanaka, Kensei Konishi, Gen‐ichi Konishi   +3 more
wiley   +1 more source

Structural Transformations in the Thermal Dehydration of [Cu₂(bpa)(btec)(H₂O)₄]_n Coordination Polymer

Molecules, 2019
Reactions between pyridinic ligands such as 1,2-bis(4-pyridyl)ethane (bpa) and transition metal cations are a very widespread technique to produce extended coordination polymers such as Metal-Organic Frameworks.
Laura Bravo-García, Edurne S. Larrea, Beñat Artetxe, Luis Lezama, Juan M. Gutiérrez-Zorrilla, María I. Arriortua   +5 more
doaj   +1 more source

thermochromism

, 2014
Citation: 'thermochromism' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.T06312 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Tailoring Liquid Crystalline Self‐Assembly and Photophysical Properties of Unsymmetrical Fluorenones via Polar Terminal Groups

Chemistry – A European Journal, EarlyView.
Novel liquid crystalline fluorenones bearing various head groups were synthesized and characterized. By alteration of the head group, N, SmC, or SmA phases were obtained, and emission properties could be tuned depending on solvent or temperature. ABSTRACT In this work, a series of novel unsymmetrical fluorenone derivatives bearing various head groups ...
Falk Feucht, Franziska Müller, Johanna Osterbrink, Anna Zens, Yann Molard, Sabine Laschat   +5 more
wiley   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

EcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang, Shan Wang, Long Yuan, Ling Zuo, Hui Qi, Changmin Hou   +5 more
wiley   +1 more source

Synthesis of Janus Polydiacetylene Sensor Particles with Thermochromism and Solvatochromism Properties

Small Structures
The first report is presented on the fabrication of anisotropic Janus polydiacetylene (PDA) microparticles with dual colorimetric properties. Spherical proto‐PDA particles are initially created by drying an emulsion containing 10,12‐pentacosadiynoic acid
Chetan C. Revadekar, Seung Soo Shin, Jong‐Man Kim, Bum Jun Park   +3 more
doaj   +1 more source