Satellite hole investigations of the hole-burning mechanism and vibrational mode coupling of 9-aminoacridine doped in glycerol–water glasses at different pH values

Laser-induced hole filling by energy transfer between chromophores bound to DNA

“…To some extent, one could consider various NRHs as individual electronic transitions at different sites across the absorption band. Recently, we have demonstrated that distinct NRHs are very useful for identifying the tautomer structures [3,4], determining the photoreaction resulting from proton exchange [3,4], probing the binding modes of chromophores to various DNA structures [5,6], distinguishing different conformational structures of dye-DNA complexes [7], and diagnosing the DNA-protein recognition [8].…”

“…When tuning the laser excitation to a vibronic transition, a number of NRHs resulting from FranckCondon (FC) active vibrational modes can be produced in the SH spectra. The intensity of NRH amplified by the inverse FC factor [3] is of great interest. Each NRH can be viewed as an individual electronic transition of its own vibronic transition.…”

Photoreaction of neutral 9-aminoacridine in glycerol:water glass characterized by satellite holes and antiholes

“…Photo-induced reaction of chromophores doped in amorphous glasses can deplete the population at the original site and produce a persistent hole in the absorption spectrum at low temperature [1][2][3][4][5]. When tuning the excitation to the vibronic absorption band, several satellite holes resulting from Franck-Condon (FC) active vibrational modes can be produced in the hole burned (HB) spectrum [6][7][8][9][10]. Recently, the high resolution of satellite holes have been used to characterize the tautomeric structures of 9aminoacridine (9AA) doped in glycerol:water (GI:H20) glasses at various pH values [10].…”

“…When tuning the excitation to the vibronic absorption band, several satellite holes resulting from Franck-Condon (FC) active vibrational modes can be produced in the hole burned (HB) spectrum [6][7][8][9][10]. Recently, the high resolution of satellite holes have been used to characterize the tautomeric structures of 9aminoacridine (9AA) doped in glycerol:water (GI:H20) glasses at various pH values [10]. Specifically, the 514 and 1368 cm -1 satellite holes can be used to characterize the monoprotonated 9AA, while the absence of the 514 cm -1 satellite hole and the * Corresponding author.…”

Vibrational Investigation of DODC Cation for Recognition of Guanine Dimeric Hairpin Quadruplex Studied by Satellite Holes

“…This is because each SH has its own electronic-vibrational transition at the burning wavelength, and therefore, it can be viewed as an individual electronic transition. [10][11] The high-resolution SH spectrum with a free background is very useful in monitoring the localized interactions of DNA-chromophore complexes. [12][13][14] In this work, we introduce for the first time the SH spectrum, along with normal mode calculation, to identify binding modes of the DODC + to the HQ.…”