Itoh Group Literature Review

Article Component Analysis of Dyads Designed for Light-Driven Water Oxidation ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [1551 KB] PDF w/ Links [414 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Lars Kohler   ,  Nattawut Kaveevivitchai   ,  Ruifa Zong   , and  Randolph P. Thummel   * Department of Chemistry,  University of Houston , 112 Fleming Building, Houston, Texas 77204-5003,  United States Inorg. Chem. , Article ASAP DOI:  10.1021/ic4022905 Publication Date (Web): December 23, 2013 Copyright © 2013 American Chemical Society *E-mail:  thummel@uh.edu . Synopsis Seven photosensitizer-catalyst dyads are synthesized using three bridging ligands based on either a pyrimidine or pyrazine linker. The efficiency of light-driven water oxidation by these dyads depends on the magnitude of the sensitizer excited state reduction potential. Abstract A serie

How Strain Affects the Reactivity of Surface Metal Oxide Catalysts Angewandte Chemie International Edition  by Kazuhiko Amakawa, Lili Sun, Chunsheng Guo, Michael Hävecker, Pierre Kube, Israel E. Wachs, Soe Lwin, Anatoly I. Frenkel, Anitha Patlolla, Klaus Hermann, Robert Schlögl, Annette Trunschke  /   30d   //   keep unread   //   hide   //   preview Abstract Highly dispersed molybdenum oxide supported on mesoporous silica SBA-15 has been prepared by anion exchange resulting in a series of catalysts with changing Mo densities (0.2–2.5 Mo atoms nm −2 ). X-ray absorption, UV/Vis, Raman, and IR spectroscopy indicate that doubly anchored tetrahedral dioxo MoO 4  units are the major surface species at all loadings. Higher reducibility at loadings close to the monolayer measured by temperature-programmed reduction and a steep increase in the catalytic activity observed in metathesis of propene and oxidative dehydrogenation of propane at 8 % of Mo loading are attributed to frustra

2013年の『科学ブレークスルー・オブ・ザ・イヤー』を10分で理解してみよう 科学 12月も終わりということで、Science誌に今年を代表する科学研究が特集されています。 Science Breakthrough of the year 2013 そこで簡単な解説文を書いてみました。駆け足ですがお付き合い下さい。 http://fm7.hatenablog.com/entry/2013/12/21/105318

同人や卒論のお共に？――締め切りまでユーザーを急かす「進捗アプリ」に注目集まる 冬コミの入稿もこれで管理できるかもしれないぞ！ [ねとらぼ] プリント／PDF ONETOPI メール アラート 　卒論、仕事、同人イベントに合わせた原稿の入稿期限――世の中にはいろんな締切がありますが、計画的に物事を進めるのはなかなか難しいですね。そんな人に向け、締切を管理する無料iOSアプリ「進捗アプリ」がApp Storeで公開されました。 この進捗はまだ余裕あるな 「進捗だめです」 うぉ……マルチ締め切り…… 　印刷所の冬コミ向け入稿締切が近づく時期ということもあってか、同アプリはTwitterでちょっとした話題に。開発者さんの 紹介ツイート は2700回以上もリツイートされています。 　このアプリ、通知にiOS 7の機能を使っているとのことで、iOS 7以降のみの対応です。締め切りまでの時間のカウントダウン機能に加え、現在の進捗パーセンテージを登録し、カウントダウンと一緒に表示する機能や、「進捗どうですか？」という通知を几帳面にプッシュする機能などがあるようです。 　Twitterを見ていると、卒論の進捗管理に使っている人もチラホラ。卒論には文字通り卒業がかかっていますからね……みなさん、頑張ってください！

Bioinspired Aerobic Oxidation of Secondary Amines and Nitrogen Heterocycles with a Bifunctional Quinone Catalyst Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Alison E. Wendlandt and Shannon S. Stahl  /   15h   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja411692v Visit Website   +TAG

Versatile Photocatalytic Systems for H2 Generation in Water Based on an Efficient DuBois-Type Nickel Catalyst 18  Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Manuela A. Gross, Anna Reynal, James R. Durrant and Erwin Reisner  /   15h   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja410592d Visit Website +TAG

Nonheme Iron Mediated Oxidation of Light Alkanes with Oxone: Characterization of Reactive Oxoiron(IV) Ligand Cation Radical Intermediates by Spectroscopic Studies and DFT Calculations Angewandte Chemie International Edition  by Chun-Wai Tse, Toby Wai-Shan Chow, Zhen Guo, Hung Kay Lee, Jie-Sheng Huang, Chi-Ming Che  /   21d   //   keep unread   //   hide   //   preview Abstract The oxidation of light alkanes that is catalyzed by heme and nonheme iron enzymes is widely proposed to involve highly reactive {Fe V O} species or {Fe IV O} ligand cation radicals. The identification of these high-valent iron species and the development of an iron-catalyzed oxidation of light alkanes under mild conditions are of vital importance. Herein, a combination of tridentate and bidentate ligands was used for the generation of highly reactive nonheme {FeO} species. A method that employs [Fe III (Me 3 tacn)(Cl-acac)Cl] +  as a catalyst in the presence of oxone was developed for the oxidation of

A Tetracoordinated Phosphasalen Nickel(III) Complex Angewandte Chemie International Edition  by Thi-Phuong-Anh Cao, Grégory Nocton, Louis Ricard, Xavier F. Le Goff, Audrey Auffrant  /   2d   //   keep unread   //   hide   //   preview Abstract The oxidation of a Ni II  complex bearing a tetradentate phosphasalen ligand, which differs from salen by the presence of an iminophosphorane (PN) in place of an imine unit, was easily achieved by addition of a silver salt. The site of this oxidation was investigated with a combination of techniques (NMR, EPR, UV/Vis spectroscopy, X-ray diffraction, magnetic measurements) as well as DFT calculations. All data are in agreement with a high-valent Ni III  center concentrating the spin density. This markedly differs from precedents in the salen series for which oxidation on the metal was only observed at low temperature or in the presence of additional ligands or anions. Therefore, thanks to the good electron-donating properties of the ph