photochromic compound

photochromic compound

[¦fōd·ō¦krō·mik ′käm‚pau̇nd]
(chemistry)
A chemical compound that changes in color when exposed to visible or near-visible radiant energy; the effect is reversible; used to produce very-high-density microimages.
References in periodicals archive ?
In this study novel photochromic compound 3-[2-(3,5-bis-methoxy-methoxymethylthiophene-2-yl)-3,3,4, 4,5,5-hexafluoro-cyclopent-1-enyl]-2-methylbenzo[b] thiophene (9) has been designed and synthesized.
Bistable photochromic compounds capable of reversible transformation between two stable isomeric forms are widely used in the design of materials for molecular electronics, optical data storage, optical switching, molecular logic devices, photopharmacology, biovisualization, and chemoand biosensors [1-7].
We have recently reported the synthesis and characterization of a series of novel 5-phenylpyrazolidin-3-one-based azomethine imines, including photochromic compounds and systems sensitive to cations and anions [32, 33].
[3] prepared melamine-formaldehyde microcapsules encapsulating photochromic compounds (two spirooxazine dyes and two naphtopyran dyes) with particle sizes of less than 5 ^m by in situ polymerisation.
The aim of the research was to produce photochromic compounds and loading them into polymeric nanocarriers.
Organic photochromic compounds are one kind of candidates for optical memory (8), (9), especially for rewritable optical memory.
The application of photochromic compounds in optical data storage or any other application will certainly be provided as films.
Photochromic compounds have been added to eyeglasses for darkening in sunlight.
Applied research projects now being conducted in collaboration with major industrial partners are aimed at the development of new compounds with anti-viral and anti-HIV activity, and the synthesis of novel photochromic compounds for use in the electronics and printing industries.