1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Excited state dynamics in photosynthetic reaction center and light harvesting complex 1
Rent:
Rent this article for
USD
10.1063/1.4738953
/content/aip/journal/jcp/137/6/10.1063/1.4738953
http://aip.metastore.ingenta.com/content/aip/journal/jcp/137/6/10.1063/1.4738953

Figures

Image of FIG. 1.
FIG. 1.

(a) Position of bacteriochlorophylls ( , , , ) and bacteriopheophytins ( , ) in the reaction center (RC) from . (b) RC equilibrium infrared absorption spectrum from Ref. 5 . (c) Light harvesting complex 1 surrounding the RC; shown is also the B875 ring of pigments. (d) Orientation of bacteriochlorophyll and bacteriopheophytin transition dipole moments in the RC.

Image of FIG. 2.
FIG. 2.

Comparison of 300 K linear equilibrium absorption spectra calculated by the HEOM and observed experimentally as reported in Ref. 5 .

Image of FIG. 3.
FIG. 3.

Excitation dynamics of the reaction center calculated with system and bath parameters taken from Table I , where parameter set 1 (a) assumes high dynamic disorder and parameter set 2 (b) assumes low dynamic disorder. Populations are shown for the pigments initially excited in each calculation.

Image of FIG. 4.
FIG. 4.

Reaction center exciton states. The exciton states, , are defined as eigenstates of the stationary state density matrix, namely, ; parameters were taken from Table I , where parameter set 1 (a) assumes high dynamic disorder and parameter set 2 (b) assumes low dynamic disorder. Orange circles (radius scales with diagonal elements of ) indicate the participation of each pigment in an exciton state, and blue lines (thickness scales with absolute value of off-diagonal elements of ) indicate inter-pigment coherence. Listed are also the steady-state population and energy ε of each exciton state. The numbering of the states is in energetically ascending order.

Image of FIG. 5.
FIG. 5.

(a) LH1 absorption spectrum. Shown is a comparison of spectra from Ref. 66 and calculated here using the HEOM approach, but excluding static disorder. (b) Excitation transfer from LH1 to RC. Excitation transfer was determined both for parameter sets 1 and 2. Shown are close comparisons between the HEOM results and descriptions in terms of the kinetic model in Eq. (10) where is the LH1→RC transfer time and is the RC→LH1 transfer time.

Tables

Generic image for table
Table I.

Parameters for the RC Hamiltonian, , and spectral densities , obtained from fits to experimental spectra (all in cm−1).

Loading

Article metrics loading...

/content/aip/journal/jcp/137/6/10.1063/1.4738953
2012-08-08
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Excited state dynamics in photosynthetic reaction center and light harvesting complex 1
http://aip.metastore.ingenta.com/content/aip/journal/jcp/137/6/10.1063/1.4738953
10.1063/1.4738953
SEARCH_EXPAND_ITEM