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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). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「hypsochromic shift」の詳細全文を読む スポンサード リンク
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