Results 41 to 50 of about 20,271 (220)

A structural, spectroscopic and theoretical study of the triphenylphosphine chalcogenide complexes of tungsten carbonyl, [W(XPPh3)(CO)5], X=O, S, Se [PDF]

, 2004
The series [W(XPPh3)(CO)5], X=O, S, Se has been structurally determined by X-ray crystallography and fully characterised spectroscopically to provide data for comparing the bonding of the Ph3PX ligands to the metal.
Cook, Julian B., Nicholson, Brian K., Smith, Derek W.   +2 more
core   +2 more sources

Nanomaterials with Excellent Adsorption Characteristics for Sample Pretreatment: A Review

Nanomaterials, 2022
Sample pretreatment in analytical chemistry is critical, and the selection of materials for sample pretreatment is a key factor for high enrichment ability, good practicality, and satisfactory recoveries. In this review, the recent progress of the sample
Wen-Xin Liu, Shuang Song, Ming-Li Ye, Yan Zhu, Yong-Gang Zhao, Yin Lu   +5 more
doaj   +1 more source

Synthesis of Fused sp3‐Enriched Imidazoles

ChemistryOpen
A synthetic approach to imidazoles annulated to saturated six‐membered cycles featuring S, SO2, NH, NCbz was developed. It was achieved by combining the Neber rearrangement and the Marckwald reaction.
Viacheslav Lysenko, Anton Portiankin, Tetiana Shvydenko, Svitlana Shishkina, Kostiantyn Nazarenko, Aleksandr Kostyuk   +5 more
doaj   +1 more source

Analysis of Organophosphorus Compounds. 1. Application of Iodine-Azide Reaction for Detection of Thiophosphoorganic Compounds in Thin-Layer Chromatography [PDF]

, 2004
Wydrukowano z dostarczonych Wydawnictwu UŁ gotowych materiałówZadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało ...
Ciesielski, Witold, Kotyński, Andrzej, Kudzin, Zbigniew H.   +2 more
core  

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

Advanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim, Chanui Lee, Keunhong Jeong, Seonggi Kim, Hyunju Shin, Sunghan Kim, Youngho Jin   +6 more
wiley   +1 more source

Prebiotic Syntheses of Organophosphorus Compounds from Reduced Source of Phosphorus in Non-Aqueous Solvents

Life, 2023
Reduced-oxidation-state phosphorus (reduced P, hereafter) compounds were likely available on the early Earth via meteorites or through various geologic processes.
Maheen Gull, Tian Feng, Benjamin Smith, Laurent Calcul, Matthew A. Pasek   +4 more
doaj   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source

Preparation of phosphines through C–P bond formation

Beilstein Journal of Organic Chemistry, 2014
Phosphines are an important class of ligands in the field of metal-catalysis. This has spurred the development of new routes toward functionalized phosphines.
Iris Wauters, Wouter Debrouwer, Christian V. Stevens   +2 more
doaj   +1 more source

Reaction of 3-Amino-1,2,4-Triazole with Diethyl Phosphite and Triethyl Orthoformate: Acid-Base Properties and Antiosteoporotic Activities of the Products

Molecules, 2017
The reaction of diethyl phosphite with triethyl orthoformate and a primary amine followed by hydrolysis is presented, and the reaction was suitable for the preparation of (aminomethylene)bisphosphonates.
Patrycja Miszczyk, Dorota Wieczorek, Joanna Gałęzowska, Błażej Dziuk, Joanna Wietrzyk, Ewa Chmielewska   +5 more
doaj   +1 more source

Genotoxicity of the organophosphorus compound methylparaoxon evaluated by the comet assay [PDF]

, 2001
Pesticides are widely used in agriculture, food production and household. Due to the broad spectrum of their activity, their biological action is extensively investigated.
Blasiak, Janusz, Kowalik, Joanna, Trzeciak, Andrzej, Wojewódzka, Maria   +3 more
core