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Denoting the shift of an absorption spectrum maximum to a longer wavelength. Opposite of hypsochromic.
[batho- + G. chrōma, color]
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References in periodicals archive ?
This delocalisation will lead to a larger effective conjugation length and hence a bathochromic shift for the absorption and luminescence features [29].
In UV-Vis spectra, a bathochromic shift has been observed for complexes (1)-(4).
The addition of low contents of water to the organic solvents also resulted in a solvatochromic effect, inducing a bathochromic shift (red shift) that is related to the peak of MB monomer in comparison with the spectroscopic signals observed in the respective pure organic solvents.
For baicalein (13) a hypochromic shift in band at 266 nm (blue and green spectra, Figure 1(d)) and a slight bathochromic shift in band at 359 nm after the addition of [Cu.sup.2+] were detected.
40816 [cm.sup.-1] was assigned to n[right arrow][[pi].sup.*] transition in the ligand had completely disappeared while bathochromic shift was observed in n[right arrow][[pi].sup.*] transition.
This is more likely owing to several factors such as (i) change in the chemical environment; (ii) more efficient absorption of excitation light due to the change in the absorption spectrum, namely, the bathochromic shift. Similar behaviour was observed with metsulfuron methyl for which the quantum yield was estimated to be 8.0 x [10.sup.-3] compared to 3.0 x [10.sup.-3] in aqueous solution.
The positions of the emission band maxima of II, V, and VII do not depend on the solvent properties; the band maxima of III and VI undergo bathochromic shifts with increasing medium polarity (Figure 5(a)).
The main goal of doping is a bathochromic shift, moving an absorption edge from the UV to the visible light area, thus reducing the band gap.
Moreover, it is possible to notice that the maximum of these bands shows a bathochromic shift, and that its width increases as the concentration of AgN[O.sub.3] in the reaction does.
No bathochromic shift in band II after addition of NaOAc indicated the glucosylation of 7-OH.
This bathochromic shift with increase in curing temperature has been reported in polyimide previously (14).