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| '''Bathochromic shift''' is a change of spectral band position in the [[absorption spectrum|absorption]], [[reflectance]], [[transmittance]], or [[emission spectrum]] of a molecule to a longer [[wavelength]] (lower [[frequency]]).<ref>{{GoldBookRef|title=bathochromic shift (effect)|url=http://goldbook.iupac.org/B00618.html}}</ref> | | Greetings. Allow me start by telling you the author's name - Phebe. Puerto Rico is exactly where he's been living for years and he will never move. Managing individuals has been his working day occupation for a while. One of the very best issues in the world for me is to do aerobics and I've been doing it for fairly a whilst.<br><br>Here is my page: [http://m44italy.it/members/ebbphill/activity/52442/ http://m44italy.it/] |
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| Because the [[red]] color in the [[visible spectrum]] has a longer wavelength than most other colors, this effect is also commonly called a '''red shift''', although this usage is considered informal,<ref>[http://www.iupac.org/reports/1996/6812verhoeven/R.htm#redshift Glossary of Terms Used in Photochemistry]</ref> and has no relation to [[Doppler shift]] or other wavelength-independent meanings of [[redshift]]. This usage is often found in the [[scientific literature]]<!-- Reference here when I get a chance - Stillnotelf -->.
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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 bathochromic shift. Bathochromic 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 2}}_{\mathrm{observed}} - \lambda^{\mathrm{state 1}}_{\mathrm{observed}}</math> where <math>\lambda</math> is the wavelength of the spectral peak of interest and <math>\lambda^{\mathrm{state 2}}_{\mathrm{observed}} > \lambda^{\mathrm{state 1}}_{\mathrm{observed}}</math> | |
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| Bathochromic shift is typically demonstrated using a [[spectrophotometer]], [[Tristimulus colorimeter|colorimeter]], or [[spectroradiometer]].
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| ==References==
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| {{Reflist}}
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| ==See also==
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| * [[Hypsochromic shift]], a change to shorter wavelength (higher frequency)
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| [[Category:Chromism]]
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| [[Category:Spectroscopy]]
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| [[it:Iperconiugazione]]
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Latest revision as of 20:51, 8 November 2014
Greetings. Allow me start by telling you the author's name - Phebe. Puerto Rico is exactly where he's been living for years and he will never move. Managing individuals has been his working day occupation for a while. One of the very best issues in the world for me is to do aerobics and I've been doing it for fairly a whilst.
Here is my page: http://m44italy.it/