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| {{Unreferenced|date=December 2009}}
| | Irwin Butts is what my wife enjoys to contact me though I don't truly like being known as like that. He is truly fond of doing ceramics but he is having difficulties to find time for it. California is our birth location. My day occupation is a librarian.<br><br>my homepage [http://www.z136593.infobox.ru/node/2920 www.z136593.infobox.ru] |
| '''Hypsochromic shift''' is a change of spectral band position in the [[absorption spectrum|absorption]], [[reflectance]], [[transmittance]], or [[emission spectrum]] of a molecule to a shorter [[wavelength]] (higher [[frequency]]). Because the [[blue]] color in the [[visible spectrum]] has a lower wavelength than most other colors, this effect is also commonly called a '''blue shift'''.
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| This can occur because of a change in environmental conditions: for example, a change in solvent [[Chemical polarity|polarity]] will result in [[solvatochromism]]. A series of structurally related molecules in a [[Substitution (chemistry)|substitution]] series can also show a hypsochromic shift. Hypsochromic shift is a phenomenon seen in ''molecular'' spectra, not ''atomic'' spectra - it is thus more common to speak of the movement of the peaks in the spectrum rather than lines.
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| :<math>\Delta\lambda = \lambda^{\mathrm{state 1}}_{\mathrm{observed}} - \lambda^{\mathrm{state 2}}_{\mathrm{observed}}</math> where <math>\lambda</math> is the wavelength of the spectral peak of interest and <math>\lambda^{\mathrm{state 1}}_{\mathrm{observed}} > \lambda^{\mathrm{state 2}}_{\mathrm{observed}}</math>
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| β-acylpyrrole will show a hypsochromic shift of 30-40nm in comparison with α-acylpyrroles.
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| ==See also==
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| *[[Bathochromic shift]], a change in band position to a longer wavelength (lower frequency).
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| {{physics-stub}}
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| {{Chemistry-stub}}
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| {{DEFAULTSORT:Hypsochromic Shift}}
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| [[Category:Spectroscopy]]
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| [[Category:Chromism]]
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Latest revision as of 20:33, 6 January 2015
Irwin Butts is what my wife enjoys to contact me though I don't truly like being known as like that. He is truly fond of doing ceramics but he is having difficulties to find time for it. California is our birth location. My day occupation is a librarian.
my homepage www.z136593.infobox.ru