Linear-Dichroism Measurements on the LH2 Antenna Complex ofRhodopseudomonasAcidophilaStrain 10050 Show that the Transition Dipole Moment of the Carotenoid Rhodopin Glucoside Is Not Collinear with the Long Molecular Axis

2003 ◽  
Vol 107 (3) ◽  
pp. 655-658 ◽  
Author(s):  
Sofia Georgakopoulou ◽  
Richard J. Cogdell ◽  
Rienk van Grondelle ◽  
Herbert van Amerongen
2001 ◽  
Vol 105 (48) ◽  
pp. 12134-12142 ◽  
Author(s):  
Pamela M. Dolan ◽  
Deborah Miller ◽  
Richard J. Cogdell ◽  
Robert R. Birge ◽  
Harry A. Frank

2017 ◽  
Vol 19 (1) ◽  
pp. 813-827 ◽  
Author(s):  
Mark T. Sims ◽  
Laurence C. Abbott ◽  
Stephen J. Cowling ◽  
John W. Goodby ◽  
John N. Moore

Analyses of MD simulations assess different definitions of the axes along which molecules align in a nematic host, and the effects of molecular flexibility on transition dipole moment orientations.


2004 ◽  
Vol 82 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Xin Zhou ◽  
Ai-Min Ren ◽  
Ji-Kang Feng ◽  
Xiao-Juan Liu

The one-photon absorption (OPA) properties of tetrabenzoporphyrins (TBPs) and phthalocyanines (Pcs) were studied using the semiempirical ZINDO method and time-dependent density functional theory (TDDFT), respectively. The compared results confirmed that the semiempirical ZINDO method was reasonably reliable when calculating the OPA of tetrabenzoporphyrins and phthalocyanines. On the basis of the OPA properties obtained from the ZINDO method, two-photon absorption (TPA) properties of two series of molecules were investigated, using ZINDO and sum-over-states (SOS) methods. The results showed that the TPA cross-sections of all molecules were in the range of 220.6 × 10–50 – 345.9 × 10–50 cm4·s·photon–1, which were in the same order of magnitude as the values reported in the literature. The relatively larger δ(ω) value for Pcs with respect to that for corresponding TBPs originates from larger intramolecular charge transfer, which can be characterized by the difference of dipole moment between S0 and S1 and the transition dipole moment between S1 and S5.Key words: two-photon absorption, ZINDO, sum-over-states, tetrabenzoporphyrin, phthalocyanines.


1998 ◽  
Vol 109 (16) ◽  
pp. 6725-6735 ◽  
Author(s):  
M. Tamanis ◽  
M. Auzinsh ◽  
I. Klincare ◽  
O. Nikolayeva ◽  
R. Ferber ◽  
...  

1974 ◽  
Vol 52 (17) ◽  
pp. 1669-1671 ◽  
Author(s):  
J. Bejar ◽  
H. P. Gush

The fundamental rotation–vibration band of HD has been resolved in the gas at 1 atm pressure. The line width appears to be totally due to the Doppler effect and equals 0.026 cm−1. The transition dipole moment has been calculated from the intensities of lines in the R branch: it is found to vary from 4 × 10−5 D for J = 0 to 7 × 10−5 for J = 4.


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