Photodissociation of a (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)-cobalt(III)] complex: A tool to study fast biological reactions involving O_2

RYAN MACARTHUR; ARTUR SUCHETA; FRANCIS F. S. CHONG; OLOEF EINARSDOTTIR

首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Photodissociation of a (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)-cobalt(III)] complex: A tool to study fast biological reactions involving O_2

【24h】

Photodissociation of a (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)-cobalt(III)] complex: A tool to study fast biological reactions involving O_2

机译：（μ-过氧）（μ-羟基）双[双（联吡啶基）-钴（III）]络合物的光解离：研究涉及O_2的快速生物反应的工具

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Upon photolysis at 355 nm, dioxygen is released from a (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)cobalt-(III)] complex in aqueous solutions and at physiological pH with a quantum yield of 0.04. The [Co(bpy)_2(H_2O)_2]~(2+) (bpy = bipyridyl) photoproduct was generated on a nanosecond or faster time scale as determined by time-resolved optical absorption spectroscopy. A linear correspondence between the spectral changes and the oxygen production indicates that O_2 is released on the same time scale. Oxyhemoglobin was formed from deoxyhemoglobin upon photodissociation of the (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)cobalt(III)] complex, verifying that dioxygen is a primary photoproduct. This complex and other related compounds provide a method to study fast biological reactions involving O_2, such as the reduction of dioxygen to water by cytochrome oxidase.

机译：在355 nm下光解后，在水溶液中且在生理pH下，（μ-过氧）（μ-羟基）双[双（联吡啶基）钴-（III）]络合物释放出双氧，量子产率为0.04。 [Co（bpy）_2（H_2O）_2]〜（2+）（bpy =联吡啶）光产物是在纳秒级或更短的时间尺度上生成的，该时间尺度是通过时间分辨光学吸收光谱法确定的。光谱变化和氧气产生之间的线性对应关系表明O_2在相同的时间尺度上释放。氧合血红蛋白是在（μ-过氧）（μ-羟基）双[双（联吡啶基）钴（III）]络合物发生光离解后由脱氧血红蛋白形成的，证明了双氧是主要的光产物。这种络合物和其他相关化合物为研究涉及O_2的快速生物反应提供了一种方法，例如通过细胞色素氧化酶将双氧还原为水。

著录项

来源
《Proceedings of the National Academy of Sciences of the United States of America》 |1995年第18期|p.8105-8109|共5页
作者
RYAN MACARTHUR; ARTUR SUCHETA; FRANCIS F. S. CHONG; OLOEF EINARSDOTTIR;
展开▼
作者单位

Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064;

展开▼
收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
关键词

相似文献

外文文献
中文文献
专利

1. Photothermal studies of the photodegradation of (mu-peroxo)(mu-hydroxo)bis[bis(bipyridyl)Co(III)] and (mu-peroxo)(mu-hydroxo)bis [bis(phenanthroline)Co(III)] complexes in water [J] . Miksovska J., Larsen RW. Inorganica Chimica Acta . 2003,第0期

机译：（mu-peroxo）（mu-hydroxo）bis [bis（bipyridyl）Co（III）]和（mu-peroxo）（mu-hydroxo）bis [bis（phenothroline）Co（III）]配合物光降解的光热研究在水里
2. Synthesis, Crystal Structure, and Hydrogen Bonding of mu-Hydroxo-mu-peroxo-bis[bis(ethylenediamine)cobalt(III)] Squarate [J] . Koeferstein Roberto, Robl Christian Zeitschrift fur Anorganische und Allgemeine Chemie . 2016,第7期

机译：mu-羟基-mu-peroxo-双[双（乙二胺）钴（III）]方酸的合成，晶体结构和氢键
3. Synthesis and X-ray crystal structures of bis(bis(#mu#-2-aminoethanolato-N,O,O)-cobalt(III))-cobalt(II) hydrate, tris(biscyclohexylammonium)#mu#-hydroxo-bis(#mu#_2-nitro-N,O)-hexanitro-dicobaltate(III) and biscyclohexylammonium nitrate(III) [J] . A. Golobic, B. Stefane, S. Polanc Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 1999,第27期

机译：双（双（＃mu＃-2-氨基乙醇基-N，O，O）-钴（III））-水合钴（II），三（双环己基铵）＃mu＃-羟基-双的合成及X射线晶体结构（＃mu＃_2-硝基-N，O）-六硝基二钴酸盐（III）和双环己基硝酸铵（III）
4. Photochemical Oxygen Elimination and Addition Reactions of Dinuclear Cobalt μ-peroxo Complexes [C] . Hiroaki Arima, Takashi Nakazono, Tohru Wada 日本化学会春季年会講演予稿集 . 2018

机译：Phothemical氧气消除和硫钴μ-Peroxo络合物的添加反应
5. THE PREPARATION AND REACTIONS OF SOME GROUP-VIII METAL COMPLEXES. PART I: THE REACTION OF TRIVALENT PENTAAMMINENITROSYL RUTHENIUM WITH HYDROXIDE ION. PART II: PREPARATION AND REACTIONS OF HALOBIS (ORTHO- PHENYLENEBISDIMETHYL ARSINE)NITROSYLOSMIUM COMPLE [D] . KIREMIRE, ENOS MASHEIJA RWANTALE. 1977

机译：某些VIII族金属络合物的制备和反应。第一部分：三价戊氨基亚硝酰钌与氢氧根离子的反应。第二部分：卤代亚砜（邻苯二甲撑二甲基A基）硝基亚砜的制备与反应
6. Photodissociation of a (mu-peroxo)(mu-hydroxo)bisbis(bipyridyl)-cobalt(III) complex: a tool to study fast biological reactions involving O2. [O] . R MacArthur, A Sucheta, F F Chong, 1995

机译：（mu-peroxo）（mu-hydroxo）bis bis（bipyridyl）-cobalt（III）配合物的光解离：研究涉及O2的快速生物反应的工具。
7. Photodissociation of a (mu-peroxo)(mu-hydroxo)bis[bis(bipyridyl)-cobalt(III)] complex: a tool to study fast biological reactions involving O2. [O] . MacArthur, R, Sucheta, A, Chong, F F, 1995

机译：（mu-peroxo）（mu-hydroxo）bis [bis（bipyridyl）-cobalt（III）]配合物的光解离：研究涉及O2的快速生物反应的工具。
8. Dialkylamino Phosphorus Metal Carbonyls. 2. Bis(diisopropylamino)phosphido and (Diisopropylamino)phosphinidene Metal Carbonyl Complexes from Reactions of Manganese and Cobalt Carbonyls with Bis(diisopropylamino)phosphine [R] . King, R. B., Fu, W. K., Holt, E. M. 1986

机译：二烷基氨基磷酸金属羰基化合物。 2.来自锰和羰基钴与双（二异丙基氨基）膦的反应的双（二异丙基氨基）膦基和（二异丙基氨基）亚膦基金属羰基配合物

Photodissociation of a (μ-peroxo)(μ-hydroxo)bis[bis(bipyridyl)-cobalt(III)] complex: A tool to study fast biological reactions involving O_2

摘要

著录项

相似文献

相关主题

期刊订阅