Name: Chromophore
SKU: 66933976
Price: 7575.00 TWD
Availability: InStock
ISBN: 9786130728274

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Type

Physical Book

Publisher

Alphascript Publishing

Language

English

Format

Paperback

ISBN13

9786130728274

Chromophore

New Book Imported to Taiwan

Delivery: 21 Oct - 29 Oct

NT$ 7,575

NT$ 7,575

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Synopsis "Chromophore"

A chromophore is part (or moiety) of a molecule responsible for its color. When a molecule absorbs certain wavelengths of visible light and transmits or reflects others, the molecule has a color. A chromophore is a region in a molecule where the energy difference between two different molecular orbitals falls within the range of the visible spectrum. Visible light that hits the chromophore can thus be absorbed by exciting an electron from its ground state into an excited state. In biological molecules that serve to capture or detect light energy, the chromophore is the moiety that causes a conformational change of the molecule when hit by light. Chromophores almost always arise in one of two forms: conjugated pi systems and metal complexes. In the former, the energy levels that the electrons jump between are extended pi orbitals created by a series of alternating single and double bonds, often in aromatic systems. Common examples include retinal (used in the eye to detect light), various food colorings, fabric dyes (azo compounds), lycopene, -carotene, and anthocyanins.

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