Characterization of a Rh(III) porphyrin-CO complex: its structure and reactivity with an electron acceptor

Yamazaki Shin-ichi; Yao Masaru; Asahi Masafumi; Sato Hiroyasu; Yamano Akihito; Ioroi Tsutomu

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Characterization of a Rh(III) porphyrin-CO complex: its structure and reactivity with an electron acceptor

机译：Rh（III）卟啉-CO配合物的表征：其结构和与电子受体的反应性

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To analyse the electrocatalytic oxidation of carbon monoxide by Rh porphyrins, we isolated a CO-adduct of Rh octaethylporphyrin, and examined its properties and reactivity by IR, NMR, and X-ray crystallographic analyses. The results indicate that the CO adduct of Rh octaethylporphyrin is vulnerable to nucleophilic attack by H2O. The CO-adduct was easily oxidized by an electron acceptor (1,4-naphthoquinone) to generate CO2. This indicates that CO is sufficiently activated in the CO complex of Rh octaethylporphyrin to reduce an electron acceptor. This mechanism is in contrast to that for the CO oxidation by Pt-based electrocatalysts.

机译：为了分析Rh卟啉对一氧化碳的电催化氧化，我们分离了Rh八乙基卟啉的CO加合物，并通过IR，NMR和X射线晶体学分析检查了其性质和反应活性。结果表明，Rh八乙基卟啉的CO加合物易受H2O的亲核攻击。 CO加合物容易被电子受体（1,4-萘醌）氧化生成CO2。这表明Rh八乙基卟啉的CO络合物中的CO被充分活化以还原电子受体。该机理与Pt基电催化剂对CO的氧化机理相反。

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《Dalton transactions: An international journal of inorganic chemistry》 |2015年第31期|共5页
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Yamazaki Shin-ichi; Yao Masaru; Asahi Masafumi; Sato Hiroyasu; Yamano Akihito; Ioroi Tsutomu;
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1. Characterization of a Rh(III) porphyrin-CO complex: its structure and reactivity with an electron acceptor [J] . Yamazaki Shin-ichi, Yao Masaru, Asahi Masafumi, Dalton transactions: An international journal of inorganic chemistry . 2015,第31期

机译：Rh（III）卟啉-CO配合物的表征：其结构和与电子受体的反应性
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4. Reactivity of Rh(III)-Nitrene Radical Complexes Having a Redox-active Tetradentate Ligand [C] . Daiki Fujita, Hideki Sugimoto, Yuma Morimoto 日本化学会春季年会講演予稿集 . 2018

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7. Metabotropic glutamate receptor 3 neuroprotection A. Berent-Spillson and J. W. Russell Received June 12, 2006; revised manuscript received October 3, 2006; accepted October 5, 2006. Address correspondence and reprint requests to James W. Russell, Department of Neurology, University of Maryland School of Medicine, 22 South Greene Street, Baltimore, MD 21201-1595, USA. E-mail: jruss@umich.edu Abbreviations used : APDC , 2 R ,4 R -4-aminopyrrolidine-2,4-dicarboxylate (specific metabotropic glutamate receptor 3 agonist) ; BSO , buthionine sulfoximine (GSH synthesis inhibitor) ; caspase , cysteine-requiring aspartate protease ; CysGly , cysteinylglycine (GSH degradation product) ; DAPI , 4′-6-diamidino-2-phenylindole ; DCF , dichlorodihydrofluorescein ; DCFDA , 5-(and 6)-chloromethyl-2′,7′-dichlorodihydrofluorescein diacetate, acetyl ester ; DHE , dihydroethidium ; DRG , dorsal root ganglion ; FCCP , carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (electron transport uncoupler) ; GCP II/III , glutamate carboxypeptidase II/III ; GSH , glutathione ; GSH-EE , glutathione ethyl ester ; GST , glutathione-s-transferase ; H 2 O 2 , hydrogen peroxide ; HBSS , Hank’s balanced salt solution ; JC-1 , 5,5′,6,6′-tetrachloro-1,1′,3,3′-tetraethylbenzimidazolylcarbocyanine iodide ; MCB , monochlorobimane ; mGluR , metabotropic glutamate receptor ; NAAG , N -acetyl-aspartyl-glutamate ; PBS , phosphate-buffered saline ; PCD , programmed cell death ; Rh123 , rhodamine123 ; ROS , reactive oxygen species ; δψ μ , inner mitochondrial membrane potential . Metabotropic glutamate receptor 3 protects neurons from glucose-induced oxidative injury by increasing intracellular glutathione concentration [O] . Berent-Spillson Alison, Russell James W. 2007

机译：代谢型谷氨酸受体3神经保护a. Berent-spillson和J. W. Russell于2006年6月12日收到;修订稿于2006年10月3日收到; 2006年10月5日接受。美国马里兰州巴尔的摩市南格林街22号，马里兰大学医学院神经病学系James W. Russell的地址通信和重印申请。电子邮件：jruss@umich.edu使用的缩写：apDC，2R，4R-4-氨基吡咯烷-2,4-二羧酸酯（特异性代谢型谷氨酸受体3激动剂）; BsO，丁硫氨酸亚砜亚胺（GsH合成抑制剂）;半胱天冬酶，半胱氨酸需要的天冬氨酸蛋白酶; CysGly，半胱氨酰甘氨酸（GsH降解产物）; DapI，4'-6-二脒基-2-苯基吲哚; DCF，二氯二氢荧光素; DCFDa，5-（和6） - 氯甲基-2'，7'-二氯二氢荧光素二乙酸酯，乙酰酯; DHE，二氢乙锭; DRG，背根神经节; FCCp，羰基氰化物4-（三氟甲氧基）苯腙（电子传输解偶联剂）; GCp II / III，谷氨酸羧肽酶II / III;谷胱甘肽;谷胱甘肽; GsH-EE，谷胱甘肽乙酯; GsT，谷胱甘肽-s-转移酶; H 2 O 2，过氧化氢; HBss，Hank的平衡盐溶液; JC-1,5,5'，6,6'-四氯-1,1'，3,3'-四乙基苯并咪唑基酞菁碘化物; mCB，monochlorobimane; mGluR，代谢型谷氨酸受体; NaaG，N-乙酰基 - 天冬氨酰谷氨酸; pBs，磷酸盐缓冲盐水; pCD，程序性细胞死亡; Rh123，罗丹明123;活性氧，活性氧; δψμ，线粒体内膜电位。代谢型谷氨酸受体3通过增加细胞内谷胱甘肽浓度来保护神经元免受葡萄糖诱导的氧化损伤

Characterization of a Rh(III) porphyrin-CO complex: its structure and reactivity with an electron acceptor

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