Magnetic properties and electronic structure of manganese-based blue pigments: a high-frequency and -field EPR study

Inorganic Chemistry
J KrzystekM A Subramanian

Abstract

A variety of new oxide-based materials based on hexagonal phase of YInO3 have been recently described. In some of these materials, the In(III) ions are substituted by Mn(III), which finds itself in a trigonal-bipyramidal (TBP) coordination environment. While YInO3 is colorless and YMnO3 is black, mixed systems YIn1-xMnxO3 (0.02 < x < 0.25) display intense blue color and have been proposed as novel blue pigments. Since the Mn(III) ion is paramagnetic, its presence imparts distinct magnetic properties to the whole class of materials. These properties were investigated by electron paramagnetic resonance (EPR) in its high-frequency and -field version (HFEPR), a technique ideally suited for transition metal ions such as Mn(III) that, in contrast to, for example, Mn(II), are difficult to study by EPR at (conventional) low frequency and field. YIn1-xMnxO3 with 0.02 < x < 0.2 exhibited high-quality HFEPR spectra up to room temperature that could be interpreted as arising from isolated S = 2 paramagnets. A simple ligand-field model, based on the structure and optical spectra, explains the spin Hamiltonian parameters provided by HFEPR, which were D = +3.0 cm(-1), E = 0; g⊥ = 1.99, g∥ = 2.0. This study demonstrates the general applicabili...Continue Reading

References

Sep 1, 1989·Biophysical Journal·M P Hendrich, P G Debrunner
Jan 1, 1993·Methods in Enzymology·E MünckM P Hendrich
Mar 16, 2001·Acta Crystallographica. Section C, Crystal Structure Communications·B B van AkenT T Palstra
Jun 14, 2001·Journal of the American Chemical Society·K A CampbellR D Britt
Aug 9, 2001·Journal of the American Chemical Society·J KrzystekS Licoccia
Jul 26, 2002·Journal of the American Chemical Society·Susanne MossinAnne-Laure Barra
Jun 18, 2003·Journal of Magnetic Resonance·J Krzystek, Joshua Telser
Oct 2, 2003·Journal of the American Chemical Society·Claire MantelCarole Duboc-Toia
May 3, 2005·Angewandte Chemie·Itana KrivokapicAnne-Laure Barra
Oct 18, 2005·Journal of Magnetic Resonance·J KrzystekJoshua Telser
Nov 11, 2009·Journal of the American Chemical Society·Andrew E SmithM A Subramanian
Dec 9, 2010·Inorganic Chemistry·Hiroshi MizoguchiM A Subramanian
Jul 14, 2011·Chemical Communications : Chem Comm·Yukinari SunatsukiMarkku R Sundberg
Apr 10, 2012·Inorganic Chemistry·J KrzystekJoshua Telser
May 16, 2012·Inorganic Chemistry·Bruce R McGarvey, Joshua Telser
Jan 31, 2014·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Joshua TelserAndrew Ozarowski

❮ Previous
Next ❯

Citations

Nov 15, 2017·Physical Chemistry Chemical Physics : PCCP·Yihong XiaoLilong Jiang
Oct 25, 2016·Chemical Society Reviews·Carole Duboc
Aug 30, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Sergiu ShovaVladimir B Arion

❮ 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.