Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Laszlo Ujj"'
Autor:
Laszlo Ujj
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 199:448-454
We report the construction and characterization of a coherent Raman tabletop system utilizing a novel astigmatic optical focusing geometry, a broadband nanosecond optical parametric oscillator and volumetric Bragg filters assisting 3CBCRS measuring s
Publikováno v:
Vibrational Spectroscopy. 108:103056
We report the extension of our formerly developed two-beam 3-color broadband coherent Raman methodology and the improvement of our tabletop system for fully polarization controlled low-frequency vibrational measurements. Each of the differently polar
Publikováno v:
Chemical Physics. 313:51-62
A new model of the primary events of the bacteriorhodopsin (BR) photocycle is derived from the analysis of vibrational spectroscopic data obtained from native BR (BR-570) and three artificial BR pigments containing structurally modified retinals with
Publikováno v:
The Journal of Physical Chemistry A. 107:10787-10797
The picosecond molecular dynamics in an artificial bacteriorhodopsin (BR) pigment, BR6.11, are measured by picosecond time-resolved coherent anti-Stokes Raman spectroscopy (PTR/CARS) and picosecond transient absorption (PTA). The BR6.11 pigment conta
Autor:
John M. Kelly, Paul E. Kruger, Laszlo Ujj, George H. Atkinson, John J. McGarvey,§ and, Colin G. Coates
Publikováno v:
The Journal of Physical Chemistry B. 106:4854-4862
Vibrational spectra (1100−1800 cm-1) of the ground state and two excited electronic states, populated following the 5 ps, 440 nm excitation, of the [Ru(phen)2dppz]+2 (phen = 1,10-phenanthroline and dppz = dipyrido[3,2-a:2‘,3‘-c] phenazine) comp
Publikováno v:
The Journal of Physical Chemistry A. 106:3325-3336
The molecular mechanism describing the initial 200 ps of the room-temperature photocycle in the artificial bacteriorhodopsin (BR) pigment, BR6.9, is examined by both absorption and vibrational spectroscopy. The BR6.9 pigment contains a structurally m
Publikováno v:
The Journal of Physical Chemistry A. 105:5719-5726
The dynamics over the initial 100 ns (3 ps time resolution) of the room-temperature photocycle of the E46Q mutant of photoactive yellow protein (PYPE46Q) are measured using picosecond transient absorption (PTA) spectroscopy. Three intermediates, I0E4
Publikováno v:
Journal of the American Chemical Society. 122:96-106
The vibrational spectrum of an intermediate, T5.12, in the photoreaction of an artificial bacteriorhodopsin (BR) pigment containing a five-membered carbon ring spanning the C12−C13C14 bonds (BR5.12) is measured by picosecond time-resolved coherent
Publikováno v:
The Journal of Physical Chemistry A. 104:4130-4139
The vibrational spectrum (800−1700 cm-1 region) of the J-625 intermediate, formed within 200−500 fs (3.5 ps decay time to K-590) in the room-temperature bacteriorhodopsin (BR) photocycle, is measured via picosecond time-resolved coherent anti-Sto
Publikováno v:
Journal of Molecular Structure. 478:107-119
The structural changes in the retinal chromophore that underlie the initial picosecond processes in the room temperature rhodopsin (Rh RT ) photo-reaction (i.e., photo RT and batho RT intermediates) are examined through the vibrational spectra of fou