Quasi-three-coordinate iron and cobalt terphenoxide complexes {Ar(iPr8)OM(μ-O)}2 (Ar(iPr8) = C6H-2,6-(C6H2-2,4,6-(i)Pr3)2-3,5-(i)Pr2; M = Fe or Co) with M(III)2(μ-O)2 core structures and the peroxide dimer of 2-oxepinoxy relevant to benzene oxidation

Inorganic Chemistry
Pei ZhaoPhilip P Power

Abstract

The bis(μ-oxo) dimeric complexes {Ar(iPr8)OM(μ-O)}2 (Ar(iPr8) = C6H-2,6-(C6H2-2,4,6-(i)Pr3)2-3,5-(i)Pr2; M = Fe (1), Co (2)) were prepared by oxidation of the M(I) half-sandwich complexes {Ar(iPr8)M(η(6)-arene)} (arene = benzene or toluene). Iron species 1 was prepared by reacting {Ar(iPr8)Fe(η(6)-benzene)} with N2O or O2, and cobalt species 2 was prepared by reacting {Ar(iPr8)Co(η(6)-toluene)} with O2. Both 1 and 2 were characterized by X-ray crystallography, UV-vis spectroscopy, magnetic measurements, and, in the case of 1, Mössbauer spectroscopy. The solid-state structures of both compounds reveal unique M2(μ-O)2 (M = Fe (1), Co(2)) cores with formally three-coordinate metal ions. The Fe···Fe separation in 1 bears a resemblance to that in the Fe2(μ-O)2 diamond core proposed for the methane monooxygenase intermediate Q. The structural differences between 1 and 2 are reflected in rather differing magnetic behavior. Compound 2 is thermally unstable, and its decomposition at room temperature resulted in the oxidation of the Ar(iPr8) ligand via oxygen insertion and addition to the central aryl ring of the terphenyl ligand to produce the 5,5'-peroxy-bis[4,6-(i)Pr2-3,7-bis(2,4,6-(i)Pr3-phenyl)oxepin-2(5H)-one] (3). The structure of...Continue Reading

References

Feb 20, 2002·Chemical Reviews·Alexander E. Shilov, Georgiy B. Shul'pin
Dec 20, 2002·Angewandte Chemie·Lawrence Que, William B Tolman
Feb 3, 2004·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Etsu YamadaYasuro Fuse
Apr 15, 2004·Journal of the American Chemical Society·Xuliang DaiTimothy H Warren
Jul 22, 2004·Journal of the American Chemical Society·Per E M Siegbahn, Fredrik Haeffner
May 19, 2005·Journal of the American Chemical Society·Steven M KronerBarry K Carpenter
Dec 1, 1976·Proceedings of the National Academy of Sciences of the United States of America·L Pauling
Sep 23, 2006·Angewandte Chemie·Nathan A EckertPatrick L Holland
Jan 26, 2007·Inorganic Chemistry·Jeremiah S DuncanSonny C Lee
Dec 21, 2007·Proceedings of the National Academy of Sciences of the United States of America·Genqiang XueLawrence Que
Feb 19, 2008·Nature Chemical Biology·Elena G Kovaleva, John D Lipscomb
Sep 19, 2008·Nature·Lawrence Que, William B Tolman
Oct 16, 2008·Inorganic Chemistry·Hao LeiPhilip P Power
Nov 26, 2008·Chemical Communications : Chem Comm·Chengbao NiPhilip P Power
Sep 16, 2009·Chemical Communications : Chem Comm·Chengbao Ni, Philip P Power
Feb 11, 2010·Chemical Reviews·Ahmet Gunay, Klaus H Theopold
Mar 3, 2011·Chemical Society Reviews·A S Borovik
Mar 12, 2011·Accounts of Chemical Research·Christine E Tinberg, Stephen J Lippard
Oct 10, 2012·Journal of the American Chemical Society·Evan R KingTheodore A Betley
Apr 23, 2013·Physical Chemistry Chemical Physics : PCCP·Robert M EdkinsAndrew Beeby
Nov 1, 2013·Journal of the American Chemical Society·Fang DaiKlaus H Theopold
Sep 13, 2014·Journal of the American Chemical Society·Kallol RayWonwoo Nam
Oct 31, 2014·The Journal of Physical Chemistry. a·Bruce M PrinceC J Tymczak
Dec 3, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Lea FohlmeisterCameron Jones
Jan 22, 2015·Nature·Rahul BanerjeeDenis A Proshlyakov
Feb 5, 2015·Journal of the American Chemical Society·Nicholas C BoazJohn T Groves

❮ Previous
Next ❯

Citations

May 10, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Benjamin R M Lake, Michael P Shaver
Apr 3, 2020·Chemical Communications : Chem Comm·Jonathan A KephartElliott B Hulley

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.