EXCITED-STATE STRUCTURE AND ENERGY-TRANSFER DYNAMICS OF 2 DIFFERENT PREPARATIONS OF THE REACTION CENTER OF PHOTOSYSTEM-II - A HOLE-BURNING STUDY

被引：101

作者：

TANG, D

JANKOWIAK, R

SEIBERT, M

YOCUM, CF

SMALL, GJ

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011

[2] SOLAR ENERGY RES INST,PHOTOCONVERS RES BRANCH,GOLDEN,CO 80401

[3] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011

[4] UNIV MICHIGAN,DEPT BIOL & CHEM,ANN ARBOR,MI 48109

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 17期

关键词：

D O I：

10.1021/j100380a002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two distinctly different preparations of the D1-D2-cytochrome 6-559 photosystem II reaction center (RC) complex are shown to exhibit very similar 4.2 K absorption and hole-burned spectra in glasses. Absorption profiles for P680 and the active pheophytin are fully characterized with the mean zero-point energy of P680*lying ≈25 cm-1 lower in energy than the Qy, state of the latter. Decay of the accessory chlorophyll and pheophytin Qy states due to energy transfer is shown to be about 3 orders of magnitude slower than in bacterial RC. © 1990 American Chemical Society.

引用

页码：6519 / 6522

页数：4

共 40 条

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