Picosecond time-resolved absorption spectrum measurements of the higher excited singlet state of diphenylacetylene in the solution phase

1992 ◽  
Vol 96 (16) ◽  
pp. 6559-6563 ◽  
Author(s):  
Yoshinori Hirata ◽  
Tadashi Okada ◽  
Noboru Mataga ◽  
Tateo Nomoto

1996 ◽  
Vol 100 (2) ◽  
pp. 669-671 ◽  
Author(s):  
A. S. Jeevarajan ◽  
L. D. Kispert ◽  
N. I. Avdievich ◽  
M. D. E. Forbes


1984 ◽  
Vol 111 (1-2) ◽  
pp. 123-127 ◽  
Author(s):  
Robert Wilbrandt ◽  
Niels-Henrik Jensen ◽  
Frans W. Langkilde


1999 ◽  
Vol 19 (1-4) ◽  
pp. 329-333 ◽  
Author(s):  
K. Mohanalingam ◽  
S. Yamaguchi ◽  
H. Hamaguchi

We have measured the femtosecond time-resolved absorption spectra of para-nitroaniline in acetonitrile just after the photoexcitation to the lowest excited singlet state. The Singular Value Decomposition (SVD) analysis shows that two temporal evolutions follow the photoexcitation. The fast component (0.7 ps time constant) describes the dissociation of the 1:2 associated form to generate the 1:0 form followed by its reassociation with AN molecules. A slower temporal evolution of 10 ps is most likely to represent the cooling down process of the whole system.



The absorption spectrum of gaseous aluminium monofluoride has been examined in the region 1250 to 2000 Ǻ. Six new singlet band-systems have been found. Four of the excited states have also been observed in emission in transitions to the lowest excited singlet state A 1 п, at longer wave-lengths. The energies and products of dissociation of some of the states are considered.



1999 ◽  
Vol 19 (1-4) ◽  
pp. 353-356
Author(s):  
G. Buntinx ◽  
L. Bussotti ◽  
V. De Waele ◽  
C. Didierjean ◽  
O. Poizat

The lowest excited singlet state (S1) of 4,4′-bipyridine (44BPY) has been studied in water and methanol by using pump-probe time-resolved resonance Raman spectroscopy in the picosecond time domain. Spectroscopic evidence for a disymmetric S1 structure with localization of the electronic excitation in one of the two pyridyl rings is given. The fast formation of the N-hydro radical 44BPYH• from the S1 state is clearly observed in methanol.



ChemInform ◽  
2010 ◽  
Vol 27 (20) ◽  
pp. no-no
Author(s):  
A. S. JEEVARAJAN ◽  
L. D. KISPERT ◽  
N. I. AVDIEVICH ◽  
M. D. E. FORBES


2019 ◽  
Vol 205 ◽  
pp. 09021
Author(s):  
So Hyeong Sohn ◽  
Taiha Joo

Time-resolved fluorescence of [Au(CN)2−]3 in water reveals a coherent vibration of 74 cm-1. A massive non-Condon effect, proved unambiguously by time-resolved fluorescence spectra, demonstrates that the wave packet motion arises from the coherent bond formation.



1990 ◽  
Vol 169 (5) ◽  
pp. 421-426 ◽  
Author(s):  
Anunay Samanta ◽  
Chelladurai Devadoss ◽  
Richard W. Fessenden


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