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flexible iron(ii) complex in which zero-field splitting is resistant to structural variation.

Title: A flexible iron(ii) complex in which zero-field splitting is resistant to structural variation.
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Name(s): Zadrozny, Joseph M, author
Greer, Samuel M, author
Hill, Stephen, author
Freedman, Danna E, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2016-01-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The relationship between electronic structure and zero-field splitting dictates key design parameters for magnetic molecules. In particular, to enable the directed synthesis of new electronic spin based qubits, developing complexes where zero-field splitting energies are invariant to structural changes is a critical challenge. Toward those ends, we report three salts of a new compound, a four-coordinate iron(ii) complex [Fe(CS)] ([(18-crown-6)K] (), PhP (), BuN ()) with a continuous structural variation in a single parameter, the dihedral angle () between the two CS ligands, as a function of counterion ( = 89.98(4)° for to 72.41(2)° for ). Electron paramagnetic resonance data for reveal zero-field splitting parameters that are unusually robust to the structural variation. Mössbauer spectroscopic measurements indicate that the structural variation in primarily affects the highest-energy 3d-orbitals (d and d ) of the iron(ii) ion. These orbitals have the smallest impact on the zero-field splitting parameters, thus the distortion has a minor effect on and . These results represent the first part of a directed effort to understand how spin state energies may be fortified against structural distortions for future applications of qubits in non-crystalline environments.
Identifier: FSU_pmch_29861991 (IID), 10.1039/c5sc02477c (DOI), PMC5952318 (PMCID), 29861991 (RID), 29861991 (EID), c5sc02477c (PII)
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5952318.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_29861991
Host Institution: FSU
Is Part Of: Chemical science.
2041-6520
Issue: iss. 1, vol. 7

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Zadrozny, J. M., Greer, S. M., Hill, S., & Freedman, D. E. (2016). A flexible iron(ii) complex in which zero-field splitting is resistant to structural variation. Chemical Science. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_29861991