TY  - JOUR
AU  - Haiser, K.
AU  - Koller, F.O.
AU  - Huber, M.
AU  - Regner, N.
AU  - Schrader, T.E.
AU  - Schreier, W.J.
AU  - Zinth, W.
TI  - Nitro-Phenylalanine: A Novel Sensor for Heat Transfer in Peptides
JO  - The journal of physical chemistry  / A
VL  - 115
SN  - 1089-5639
CY  - Washington, DC
PB  - Soc.
M1  - PreJuSER-20193
SP  - 2169 - 2175
PY  - 2011
N1  - This work was supported by the Deutsche Forschungsgemeinschaft through the DFG-Cluster of Excellence Munich-Centre for Advanced Photonics and SFB 749 (A5).
AB  - Femtosecond IR-pump-IR-probe experiments with independently tunable pulses are used to monitor the ultrafast response of selected IR absorption bands to vibrational excitation of other modes of Fmoc-nitrophenylalanine. The absorptions of both NO(2)-bands change rapidly within <2 ps upon excitation of other vibrational modes. The results point to considerable coupling between the monitored NO(2) modes and the initially excited modes or low-frequency modes. The latter are populated by a rapid energy redistribution process. The strong IR absorption of the NO(2) stretching bands and the intense coupling to other modes makes the nitro group of nitrophenylalanine a sensitive monitor for vibrational energy arriving at this amino acid.
KW  - Energy Transfer
KW  - Hot Temperature
KW  - Peptides: chemistry
KW  - Phenylalanine: analogs & derivatives
KW  - Spectrophotometry, Infrared: instrumentation
KW  - Vibration
KW  - Peptides (NLM Chemicals)
KW  - 4-nitrophenylalanine (NLM Chemicals)
KW  - Phenylalanine (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:21370826
UR  - <Go to ISI:>//WOS:000288400900011
DO  - DOI:10.1021/jp110597a
UR  - https://juser.fz-juelich.de/record/20193
ER  -