Pseudooctahedral complexes of vanadium(III): electronic structure investigation by magnetic and electronic spectroscopy

Inorganic Chemistry
J KrzystekJoshua Telser

Abstract

A variety of physical methods has been used to probe the non-Kramers, S = 1, V(III) ion in two types of pseudooctahedral complexes: V(acac)(3), where acac = anion of 2,4-pentanedione, and VX(3)(thf)(3), where thf = tetrahydrofuran and X = Cl and Br. These methods include tunable frequency and high-field electron paramagnetic resonance (HFEPR) spectroscopy (using frequencies of approximately 95-700 GHz and fields up to 25 T) in conjunction with electronic absorption, magnetic circular dichroism (MCD), and variable-temperature variable-field MCD (VTVH-MCD) spectroscopies. Variable-temperature magnetic susceptibility and field-dependent magnetization measurements were also performed. All measurements were conducted on complexes in the solid state (powder or mull samples). The field versus sub-THz wave quantum energy dependence of observed HFEPR resonances yielded the following spin Hamiltonian parameters for V(acac)(3): D = +7.470(1) cm(-1); E = +1.916(1) cm(-1); g(x) = 1.833(4); g(y) = 1.72(2); g(z) = 2.03(2). For VCl(3)(thf)(3), HFEPR detected a single zero-field transition at 15.8 cm(-1) (474 GHz), which was insufficient to determine the complete set of spin Hamiltonian parameters. For VBr(3)(thf)(3), however, a particularly ri...Continue Reading

References

Jul 15, 1969·Acta Crystallographica. Section B, Structural Science·C H Carlisle, D S Cook
Aug 9, 2001·Journal of the American Chemical Society·J KrzystekS Licoccia
Aug 21, 2001·Inorganic Chemistry·M MelchiorC Orvig
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May 8, 2002·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·J KrzystekJoshua Telser
Jul 26, 2002·Journal of the American Chemical Society·Susanne MossinAnne-Laure Barra
Jun 18, 2003·Journal of Magnetic Resonance·J Krzystek, Joshua Telser
Feb 20, 2004·Journal of the American Chemical Society·J KrzystekJoshua Telser

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Citations

Mar 7, 2013·Inorganic Chemistry·Timothy A JacksonThomas C Brunold
Dec 7, 2007·Chemical Communications : Chem Comm·Rachel ShawEric J L McInnes
Dec 5, 2015·Inorganic Chemistry·Laura J CloustonConnie C Lu
Oct 22, 2011·Journal of Magnetic Resonance·J KrzystekAndrew Ozarowski
Sep 10, 2014·Chemistry : a European Journal·Kátia Cristina M WestrupRoberta Sessoli
Oct 26, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·J Krzystek, Joshua Telser
Aug 1, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·M Angeles García-MonforteBabil Menjón
Feb 7, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·John E Ellis
Oct 28, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Ian S TidmarshEric J L McInnes
Oct 20, 2005·Magnetic Resonance in Chemistry : MRC·Joshua TelserJ Krzystek
Oct 29, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Tamara A BazhenovaEduard B Yagubskii
Oct 4, 2007·Inorganic Chemistry·Julie A CissellThomas P Vaid
Jul 25, 2009·Inorganic Chemistry·Kevin R KittilstvedAndreas Hauser
Aug 5, 2010·Journal of the American Chemical Society·Tuan K A HoangDavid M Antonelli
May 24, 2018·Inorganic Chemistry·Casey Van StappenFrank Neese
Sep 2, 2020·Inorganic Chemistry·Mohamed R SaberKim R Dunbar

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