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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/07/19 22:00:03」(JST)
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Hypsochromic shift is a change of spectral band position in the 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 shorter wavelength than most other colors, this effect is also commonly called a blue shift.
This can occur because of a change in environmental conditions: for example, a change in solvent polarity will result in solvatochromism. A series of structurally related molecules in a 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.
- where is the wavelength of the spectral peak of interest and
For example, β-acylpyrrole will show a hypsochromic shift of 30-40 nm in comparison with α-acylpyrroles.
See also
- Bathochromic shift, a change in band position to a longer wavelength (lower frequency).
English Journal
- Interaction of anticancer drug methotrexate with DNA analyzed by electrochemical and spectroscopic methods.
- Rafique B, Khalid AM, Akhtar K, Jabbar A.SourceDepartment of Chemistry, Government College University, Faisalabad, Pakistan. amkhalid1945@gmail.com
- Biosensors & bioelectronics.Biosens Bioelectron.2013 Jun 15;44:21-6. doi: 10.1016/j.bios.2012.12.028. Epub 2012 Dec 27.
- Electrochemical DNA biosensor was used to study the interaction of methotrexate (MTX) with DNA immobilized on the bare surface of glassy carbon electrode (GCE). The binding mechanism of MTX with DNA was elucidated by using constant current potentiometric technique further supported by UV-Visible and
- PMID 23384765
- Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes.
- Hernández LI, Godin R, Bergkamp JJ, Llansola Portolés MJ, Sherman BD, Tomlin J, Kodis G, Méndez-Hernández DD, Bertolotti S, Chesta CA, Mariño-Ochoa E, Moore AL, Moore TA, Cosa G, Palacios RE.SourceDepartamento de Química, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto , Río Cuarto, Córdoba 5800, Argentina.
- The journal of physical chemistry. B.J Phys Chem B.2013 Apr 25;117(16):4568-81. doi: 10.1021/jp3086792. Epub 2012 Dec 19.
- We report on the photosensitization of titanium dioxide nanoparticles (TiO2 NPs) synthesized inside AOT (bis(2-ethylhexyl) sulfosuccinate sodium salt) reverse micelles following photoexcitation of perylene derivatives with dicarboxylate anchoring groups. The dyes, 1,7-dibromoperylene-3,4,9,10-tetrac
- PMID 23189921
- Functional Characterization of a Flavonoid Glycosyltransferase Gene from Withania somnifera (Ashwagandha).
- Singh S, Vishwakarma RK, Kumar RJ, Sonawane PD, Ruby, Khan BM.SourcePlant Tissue Culture Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, Maharashtra, India.
- Applied biochemistry and biotechnology.Appl Biochem Biotechnol.2013 Apr 23. [Epub ahead of print]
- Glycosylation of flavonoids is mediated by family 1 uridine diphosphate (UDP)-dependent glycosyltransferases (UGTs). Until date, there are few reports on functionally characterized flavonoid glycosyltransferases from Withania somnifera. In this study, we cloned the glycosyltransferase gene from W. s
- PMID 23609908
Japanese Journal
- Optical Properties of Three Differently Colored Crystal Modifications of a 2,3-Dicyanopyrazine Dye
- Okada Naoya,Eto Ryohei,Horiguchi-Babamoto Emi [他],Kobayashi Takashi,Naito Hiroyoshi,Shiro Motoo,Takahashi Hiromi,Matsumoto Shinya
- Bulletin of the Chemical Society of Japan 88(5), 716-721, 2015
- … In contrast, the third modification showed a hypsochromic absorption shift with a large bathochromic fluorescence shift. …
- NAID 130005069500
- Influence of intermolecular interactions on solid state luminescence of imidazopyridines: theoretical interpretations using FMO-TDDFT and ONIOM approaches
- Shigemitsu Yasuhiro,Mutai Toshiki,Houjou Hirohiko,Araki Koji
- Physical Chemistry Chemical Physics 16(28), 14388-14395, 2014-07-28
- … The FMO pair interaction analysis of the S1-S 0 emission maxima indicated that the intermolecular side-to-side interactions cause hypsochromic shifts; … and crystal packing effects in total induce hypsochromic shifts. …
- NAID 120005476985
- Theoretical interpretations of electronic and fluorescence spectra of new 2(1H)-pyridone derivatives in solution and solid state
- Shigemitsu Yasuhiro,Hagimori Masayori,Mizuyama Naoko,Wang Bo-Cheng,Tominaga Yoshinori
- Dyes and Pigments 99(3), 940-949, 2013-12
- … The FMO pair interaction analysis of the spectra indicate that (1) intermolecular hydrogen bonds provoke bathochromic shifts (2) electrostatic interactions induce hypsochromic shifts (3) crystal packing effects induce hypsochromic shifts in total from the maxima in vacuo. …
- NAID 120005341843
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- Hypsochromic shift is a change of spectral band position in the 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 ...
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