Results 51 to 60 of about 1,253 (148)
, 2003 The angular distribution of the emitted electrons, following the two-photon ionization of the hydrogen-like ions, is studied within the framework of second order perturbation theory and the Dirac equation.
Andrey Surzhykov +20 more
core +2 more sources
Isonitrile Photochemistry: A Functional Group Class Coming in from the Cold
Chemistry – A European Journal, Volume 30, Issue 64, November 15, 2024.Isonitriles, often neglected for their unpleasant smell, have fascinated many generations of chemists thanks to unique reactivity modes. The present concept article, by retracing the seeds of isonitrile photochemistry, points out the hidden opportunities offered by visible light photo(redox) catalysis to promote key advancements in the field.
Mariateresa Giustiniano
wiley +1 more source
Molecular Design of Multi-elements Synergistic Flame Retardants and Investigation of Flame-retarded Modification on Epoxy Resins [PDF]
, 2016 无卤、低毒、绿色环保阻燃剂的研发是当今阻燃剂发展的主要趋势，其中阻燃效率高的多元素协同阻燃剂引起了广泛的关注。因此，对含磷、氮和硅三种阻燃元素的研究成为了阻燃材料领域的研究热点之一。本文分别以含硅的POSS和含磷的DOPO为阻燃基元，通过对分子结构的设计制备了不同P、Si比例的且同时含有磷、氮和硅三种阻燃元素的阻燃剂：POSS-bisDOPO（P:Si=1:4），ODMAS（P:Si=2:1），PmDOH（P:Si=1:8）和PoDOH（P:Si=1:1）。研究了阻燃剂对环氧树脂透明性、热性能 ...
刘诚
core
, 2015 Conical intersections (CoIn) dominate the pathways and outcomes of virtually all photophysical and photochemical molecular processes. Despite extensive experimental and theoretical effort, CoIns have not been directly observed yet and the experimental ...
Bennett, Kochise +3 more
core +2 more sources
ChemMedChem, Volume 19, Issue 21, November 4, 2024.Phosphonates represent unique chemical space among the biologically active compounds. Several compounds were measured on various human cancer cell lines and many of them showed remarkable cytotoxic activities. To assess their potential protein targets the structure of the hits were compared with known agents annotated with targets using fingerprint ...
György Dormán +2 more
wiley +1 more source
The Use of 5‐Hydroxymethylfurfural (5‐HMF) in Multi‐Component Hantzsch Dihydropyridine Synthesis
ChemSusChem, Volume 17, Issue 16, August 26, 2024.Symmetrical 5‐HMF derived 1,4‐dihydropyridines can be obtained in excellent yields under very mild and simple conditions avoiding the use of any complex solvent or catalyst and applicable on the multigram scale using the Hantzsch dihydropyridines synthesis.
Jingjing Jiang +2 more
wiley +1 more source
MoleculesIn this research, we explore the synthesis of and characterize α-aminophosphonates derived from anthraquinone and benzanthrone, focusing on their fluorescence properties and potential applications in confocal laser scanning microscopy (CLSM).
Armands Maļeckis +11 more
doaj +1 more source
Flame Retardant Modification of Epoxy Using Phosphorus-containing POSS-based Polymers [PDF]
, 2015 环氧树脂因其具有良好的粘结性、化学稳定性、低收缩、优异的机械性能、易加工成型和成本低廉等优点，而广泛应用于粘结剂、涂料及电子封装等领域，但是由于环氧树脂存在内应力大、质脆，耐热性及阻燃性能不足而使得其应用受到限制。传统含卤素尤其是含溴阻燃剂虽被证明有很好的阻燃效果并得到广泛应用，但研究发现其在燃烧时会生成有毒物质，使得含卤阻燃剂的使用受到限制。建立新型无卤、无毒的环氧阻燃体系已成为科研工作者关注的研究热点之一。 本文以DOPO（9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物 ...
陈国荣
core
Negative-continuum dielectronic recombination into excited states of highly-charged ions
, 2009 The recombination of a free electron into a bound state of bare, heavy nucleus under simultaneous production of bound-electron--free-positron pair is studied within the framework of relativistic first--order perturbation theory. This process, denoted as "
Artemyev, A. N. +3 more
core +1 more source
Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery
Advanced Materials, Volume 36, Issue 33, August 15, 2024.This review explores the advancements in covalent organic frameworks (COFs) for precious metal (PM) recovery, organizing design and synthesis strategies for three types of COF‐based materials. It highlights the selectivity of COFs due to strong interactions with PMs.
Weikang Guo +8 more
wiley +1 more source