Triggering the Generation of an Iron(IV)-Oxo Compound and Its Reactivity toward Sulfides by Ru<sup>II</sup> Photocatalysis
作者:Anna Company、Gerard Sabenya、María González-Béjar、Laura Gómez、Martin Clémancey、Geneviève Blondin、Andrew J. Jasniewski、Mayank Puri、Wesley R. Browne、Jean-Marc Latour、Lawrence Que、Miquel Costas、Julia Pérez-Prieto、Julio Lloret-Fillol
DOI:10.1021/ja412059c
日期:2014.3.26
enhancement has been established by studying the reaction of chemically generated compound 2 with sulfides under different conditions, which demonstrated that both light and [RuII(bpy)3]2+ are necessary for the observed increase in the reaction rate. A combination of nanosecond time-resolved absorption spectroscopy with laserpulse excitation and other mechanisticstudies has led to the conclusion that
A Unique Mechanism for Base Catalyzed Hydrolysis of Pentaaminecobalt(III) Complexes Containing Picolyl Residues
作者:Alistair J. Dickie、David C. R. Hockless、Anthony C. Willis、Josephine A. McKeon、W. Gregory Jackson
DOI:10.1021/ic0206995
日期:2003.6.1
[Co(pentaamine)OH](2+) is base catalyzed (k(OH) 0.70 M(-)(1) s(-)(1), 25 degrees C, I = 1.0 M, NaCl). Detailed NMR studies reveal that the base catalyzed substitution leads to the exchange of just one deuterium in one of the two -CH(2)- pyridyl arms, that is approximately trans to the leaving group, and this occurs during and not after basehydrolysis. Quenching experiments for the reaction of asym-[Co(dmpmetacn)Cl](2+)
functional theory computational analyses is formulated as [FeV(N)(MePy2tacn)]2+ (2). Results indicate that 2 is a low-spin (S = 1/2) iron(V) species, which exhibits a short Fe-N distance (1.64 Å), as deduced from extended X-ray absorption fine structure analysis. Compound 2 is only stable at cryogenic (liquid N2) temperatures, and frozen solutions as well as solid samples decompose rapidly upon warming,
A New Member of the Growing Family of Interconvertible {RuNO}
<sup>6,7,8</sup>
Species. Redox and Acid‐Base Characterization of [Ru((CH
<sub>2</sub>
py)
<sub>2</sub>
Me[9]aneN
<sub>3</sub>
)(NO)]
<sup>
<i>n</i>
+
</sup>
作者:Julián Perdoménico、Natalia Levin、Anabella C. Fierro、Oswaldo A. Cordero Chernek、Thomas Weyhermüller、Leonardo D. Slep
DOI:10.1002/ejic.202100753
日期:2021.12.14
A new example of the growing library of species designed to explore key aspects of the behavior of coordinated nitrosyl in biological processes confirms correlations between the pKa of bound HNO and redox properties of the complexes.
旨在探索生物过程中协调亚硝基行为的关键方面的不断增长的物种库的一个新例子证实了结合 HNO的 p K a与复合物的氧化还原特性之间的相关性。
Curing liquids
申请人:Unilever PLC, A Company Registered In England And
Wales under company no. 41424 of Unilever House
公开号:EP2343336A1
公开(公告)日:2011-07-13
The present invention relates to accelerators for curing unsaturated polyester resins, vinyl ester resins, and acrylic resins in conjunction with peroxide type initiators. The accelerators are based on iron/manganese complexes of a tetradentate, pentadentate, or hexadentate nitrogen donor ligands. Also disclosed are curable resin compositions including the forgoing accelerators and a curing process for employing these accelerators. These resin compositions show good curing properties and do not contain cobalt accelerators. The present invention further relates to gel coats and molded composites prepared from such unsaturated polyester, vinyl ester, and acrylic resins.