Photochemistry - Wikipedia
Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible (400–750 nm), or infrared radiation (750–2500 nm). [1]
Photochemical reaction | Light-Induced Chemical Changes
photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules ’ absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules.
Photochemical Reaction: Definition, Examples, & Applications
A photochemical reaction is a chemical reaction initiated by the absorption of energy in the form of light (photons), resulting in specific products. Usually, molecules prefer to remain in the state of lowest energy, known as the ground state.
Photochemistry - Michigan State University
The study of chemical reactions, isomerizations and physical behavior that may occur under the influence of visible and/or ultraviolet light is called Photochemistry. Two fundamental principles are the foundation for understanding photochemical transformations:
A beginners guide to understanding the mechanisms of …
2023年8月22日 · Abstract. The increasing popularity of applied photochemistry has changed the composition of the practitioners of photochemistry, from traditional specialists, to users whose expertise lies elsewhere, yet they find light as a useful and powerful reagent.
28.3: Organic Photochemistry - Chemistry LibreTexts
2021年7月31日 · In many cases such isomerizations can be carried out photochemically. A typical example is afforded by cis- and trans- 1,2-diphenylethene (stilbene): Here the trans form is easily available by a variety of reactions and is more stable than the cis isomer because it is less sterically hindered.
Photochemical Reaction - Definition & Theoretical Concepts
A photochemical reaction is a chemical reaction triggered when light energy is absorbed by a substance’s molecules. This response leads the molecules to experience a temporary excited state, thus altering their physical and chemical properties from the substance’s initial molecule. Photochemical Reaction.
The photochemical reaction of phenol becomes ultrafast at the ... - Nature
2021年2月8日 · An ultraviolet pulse (267 nm) photoexcites phenol to the first electronic excited singlet state (S 1) to initiate its photochemical reaction.
Photochemical Reaction - an overview | ScienceDirect Topics
A photochemical reaction is defined as a transition from the excited state of a reactant to the ground state product/s in chemistry. AI generated definition based on: Comprehensive Computational Chemistry (First Edition), 2024. About this page.
Photochemical Approaches to Complex Chemotypes: Applications …
2016年4月27日 · The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A cen...