Publications | Freedman Laboratory

Chemical Control of Spin-Lattice Relaxation to Create Room Temperature Molecular Qubit Candidates
Amdur, M. J.; Mullin, K. R.; Waters, M. J.; Puggioni, D.; Wojnar, M. K.; Gu, M.; Sun, L.; Oyala, P. H.; Rondinelli, J. M.; Freedman, D. E. Submitted.

Spectral Addressability in a Modular Two Qubit System
von Kugelgen, S. W.; Krzyaniak, M. D.; Gu, M.; Puggioni, D.; Rondinelli, J. M.; Wasielewski, M. R.; Freedman, D. E. J. Am. Chem. Soc. 2021, 143, 8069–8077.

A Molecular Approach to Quantum Sensing
Yu, C.-J.; von Kugelgen, S. W.; Freedman, D. E. ACS Cent. Sci. 2021, 7, 712–723.

Fast and Programmable Locomotion of Hydrogel-Metal Hybrids under Light and Magnetic Fields
Li, C.; Lau, G. C.; Yuan, H.; Aggarwal, A.; Dominguez, V. L.; Liu, S.; Sai, H.; Palmer, L. C.; Sather, N. A.; Pearson, T. J.; Freedman, D. E.; Amiri, P. K.; Olvera de la Cruz, M.; Stupp, S. I. Sci. Robot. 2020, 5, eabb9822.

Computationally Directed Discovery of MoBi₂
Altman, A. B.; Tamerius, A. D.; Koocher, N. Z.; Meng, Y.; Pickard, C.; Walsh, J. P. S.; Rondinelli, J. M.; Jacobsen, S. D.; Freedman, D. E. J. Am. Chem. Soc. 2021, 143, 214–222. Click here to read a Materials Discovery Highlight from Science on this work!

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Optically Addressable Molecular Spins for Quantum Information Processing
Bayliss, S. L.*; Laorenza, D. W.*; Mintun, P. J.; Kovos, B. D.; Freedman, D. E.; Awschalom, D. D. Science 2020, 370, 1309-1312.

*These authors contributed equally to this work.

Check it out! This work was highlighted by Phys.org, Physics World, and the University of Chicago.

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Trigonal Bipyramidal V³⁺ Complex as an Optically Addressable Molecular Qubit Candidate
Fataftah, M. S.; Bayliss, S. L.; Laorenza, D. W.; Wang, X.; Wilson, B.; Mintun, P. J.; Kovos, B. D.; Phelan, B.; Wasielewski, M. R.; Han, S.; Sherwin, M.; Awschalom, D. D.; Freedman, D. E. J. Am. Chem. Soc. 2020, 142, 20400-20408.

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Dynamic Nuclear Polarization with Vanadium(IV) Metal Centers
Jain, S. K.; Yu, C.-J.; Wilson, C. B.; Tabassum, T.; Freedman, D. E.; Han, S. Chem 2020, 7, 1-15.

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Spin and Phonon Design in Modular Arrays of Molecular Qubits
Yu, C.-J.; von Kugelgen, S. W.; Krzyaniak, M. D.; Ji, W.; Dichtel, W. R.; Wasielewski, M. R.; Freedman, D. E. Chem. Mater. 2020, 32, 10200-10206. Selected to be featured in ACS Editors’ Choice!

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Orbital Energy Mismatch Engenders High-Spin Ground States in Heterobimetallic Complexes
Coste, S. C.; Pearson, T. J.; Altman, A. B.; Klein, R. A.; Finney, B. A.; Hu, M. Y.; Alp, E. E.; Vlaisavljevich, B.; Freedman, D. E. Chem. Sci. 2020, 11, 9971-9977. Click here to read a Research Highlight from Nature Reviews Chemistry on this work!

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Nickel(II) Metal Complexes as Optically Addressable Qubit Candidates
Wojnar, M. K.; Laorenza, D. W.; Schaller, R.; Freedman, D. E. J. Am. Chem. Soc. 2020, 142, 14826-14830. This work was recently spotlighted by JACS!

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Exploiting Chemistry and Chemical Systems for Quantum Information Science
Wasielewski, M. R.; Forbes, M. D. E.; Frank, N. L.; Kowalski, K.; Scholes, G. D.; Yuen-Zhou, J.; Baldo, M. A.; Freedman, D. E.; Goldsmith, R. H.; Goodson, III, T.; Kirk, M. L.; McCusker, J. K.; Ogilvie, J. P; Schultz, D. A.; Stoll, S.; Whaley, K. B. Nat. Rev. Chem. 2020, 4, 490-504.

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Pressure Induced Collapse of Magnetic Order in Jarosite
Klein, R. A.; Walsh, J. P. S.; Clarke, S. M.; Liu, Z.; Alp, E. E.; Bi, W.; Meng, Y.; Altman, A. B.; Chow, P.; Xiao, Y.; Norman, M. R.; Rondinelli, J. M.; Jacobsen, S. D.; Puggioni, D.; Freedman, D. E. Phys. Rev. Lett. 2020, 125, 077202.

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Control of the Porosity in Manganese Trimer-Based Metal Organic Frameworks by Linker Functionalization
Mian, M. R.; Afrin, U.; Fataftah, M.; Idrees, K.; Islamoglu, T.; Freedman, D. E.; Farha, O. K. Inorg. Chem. 2020, 59, 8444−8450.

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News & Views:
Taking Titanium for a Spin
Collins, K. A.; Freedman, D. E. Nat. Chem. 2020, 12, 670-671.

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Synthetic Investigation of Competing Magnetic Interactions in 2D Metal-Chloranilate Radical Frameworks
Collins, K. A.; Saballos, R. J.; Fataftah, M. S.; Puggioni, D.; Rondinelli, J. M.; Freedman, D. E. Chem. Sci. 2020, 11, 5922–5928. Part of the 2020 Chemical Science HOT Article Collection!

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Introduction of Spin Centers in Single Crystals of Ba₂CaWO_6-δ
Sinha, M; Pearson, T. J.; Scheie, A. O.; Reeder, T. R.; Vivanco, H. K.; Freedman, D. E.; Phelan, W. A.; McQueen, T. M. Phys. Rev. Mat. 2019, 3, 125002.

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Perspective:
A Chemical Path to Quantum Information
von Kugelgen, S. W.; Freedman, D. E. Science 2019, 366, 1070–1071.

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Magnetic Anisotropy in Heterobimetallic Complexes
Coste, S. C.; Pearson, T. J.; Freedman, D. E. Inorg. Chem. 2019, 58, 11893–11902. Part of the Invited Special Forum Issue Paradigm Shifts in Magnetism: From Molecules to Materials!

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Metal–Ligand Covalency Enables Room Temperature Molecular Qubit
Candidates
Fataftah, M. S.; Krzyaniak, M. D.; Vlaisavljevich, B.; Wasielewski, M. R.; Zadrozny, J. M.; Freedman, D. E. Chem. Sci. 2019, 10, 6707–6714.

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High-Pressure Synthesis of the BiVO₃ Perovskite
Klein, R. A.; Altman, A. B.; Saballos, R. J.; Walsh, J. P. S.; Tamerius, A. D.; Meng, Y.; Puggioni, D.; Jacobsen, S. D.; Rondinelli, J. M.; Freedman, D. E. Phys. Rev. Mater. 2019, 3, 64411.

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MnBi₂: A Metastable High-Pressure Phase in the Mn–Bi System
Walsh, J. P. S.; Clarke, S. M.; Puggioni, D.; Tamerius, A. D.; Meng, Y.; Rondinelli, J. M.; Jacobsen, S. D.; Freedman, D. E. Chem. Mater. 2019, 31, 3083–3088.

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Controlling Dimensionality in the Ni–Bi System with Pressure
Clarke, S. M.; Powderly, K. M.; Walsh, J. P. S.; Yu, T.; Wang, Y.; Meng; Y.; Jacobsen, S. D.; Freedman, D. E. Chem. Mater. 2019, 31, 955–959. This work was highlighted in a Science Highlight by the Advanced Photon Source at Argonne National Laboratory!

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A Concentrated Array of Copper Porphyrin Candidate Qubits
Yu, C.-J.; Krzyaniak, M. D.; Fataftah, M. S.; Wasielewski, M. R.; Freedman, D. E. Chem. Sci. 2019, 10, 1702–1708.

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Progress Towards Creating Optically Addressable Molecular Qubits
Fataftah, M. S.; Freedman, D. E. Chem. Commun. 2018, 54, 13773–13781.

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First Reaction:
Size Determines Efficacy of Nanoparticle Magnetoresistance
Pearson, T. J.; Freedman, D. E. ACS Cent. Sci. 2018, 4, 1092–1094.

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Discovery of Cu₃Pb
Tamerius, A. D.; Clarke, S. M.; Gu, M.; Walsh, J. P. S.; Esters, M.; Meng, Y.; Hendon, C. H.; Rondinelli, J. M.; Jacobsen, S. D.; Freedman, D. E. Angew. Chem. Int. Ed. 2018, 57, 12809–12813. This work was highlighted in an article from ChemistryViews!

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Impact of Pressure on Magnetic Order in Jarosite
Klein, R. A.; Walsh, J. P. S; Clarke, S. M.; Guo, Y.; Bi, W.; Fabbris, G.; Meng, Y.; Haskel, D.; Alp, E. E.; Van Duyne, R. P.; Jacobsen, S. D.; Freedman, D. E. J. Am. Chem. Soc. 2018, 140, 12001–12009. This work was highlighted in a JACS Spotlight, in a Science Highlight by the Advanced Photon Source at Argonne National Laboratory, in a HPCAT Science Highlight, and was selected for a JACS front cover!

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Octacyanometallate Qubit Candidates
Pearson, T. J.; Laorenza, D.; Krzyaniak, M.; Wasielewski M. R.; Freedman, D. E. Dalton Trans. 2018, 47, 11744–11748. In honor of Kim Dunbar’s 60th birthday.

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High-Pressure Synthesis: A New Frontier in the Search for Next-Generation Intermetallic Compounds
Walsh, J. P. S.; Freedman, D. E. Acc. Chem. Res. 2018, 51, 1315–1323.

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High-Pressure Discovery of β-NiBi
Powderly, K. M.; Clarke, S. M.; Amsler, M.; Wolverton C.; Malliakas, C. D.; Meng, Y.; Jacobsen, S. D.; Freedman, D. E. Chem. Commun. 2017, 53, 11241–11244.

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Magnetic Anisotropy from Main Group Elements: Halide versus Group 14 Elements
Coste, S. C.; Vlaisavljevich, B.; Freedman, D. E. Inorg. Chem. 2017, 56, 8195–8202.

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Probing Nuclear Spin Effects on Electronic Spin Coherence via EPR Measurements of Vanadium (IV) Complexes
Graham, M. J.; Krzyaniak, M.; Wasielewski, M. R.; Freedman, D. E. Inorg. Chem. 2017, 56, 8106–8113.

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Creating Binary Cu–Bi Compounds via High-Pressure Synthesis: A Combined Experimental and Theoretical Study
Clarke, S. M.; Amsler, M.; Walsh, J. P. S.; Yu, T.; Wang, Y.; Meng, Y.; Jacobsen, S. D.; Wolverton, C.; Freedman, D. E. Chem. Mater. 2017, 29, 5276–5285. This work was highlighted as part of the Emerging Investigators in Solid-State Inorganic Chemistry virtual issue!

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A Porous Array of Clock Qubits
Zadrozny, J. M.; Gallagher, A. T.; Harris, T. D.; Freedman, D. E. J. Am. Chem. Soc. 2017, 139, 7089–7094. This work was highlighted in the JACS Young Investigator virtual issue!

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Forging Solid-State Qubit Design Principles in a Molecular Furnace
Graham, M. J.; Zadrozny, J. M.; Fataftah, M. S.; Freedman, D. E. Chem. Mater. 2017, 29, 1885–1897.

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Synthetic Approach to Determine the Effect of Nuclear Spin Distance on Electronic Spin Decoherence
Graham, M. J.; Yu, C.-J; Krzyaniak, M.; Wasielewski, M. R.; Freedman, D. E. J. Am. Chem. Soc. 2017, 139, 3196–3201. This work was highlighted in the JACS Young Investigator virtual issue!

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Preview Article:
Using Supramolecular Chemistry to Build Quantum Logic Gates
Walsh, J. P. S.; Freedman, D. E. Chem 2016, 1, 668–669.

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Discovery of FeBi₂
Walsh, J. P. S.; Clarke, S. M.; Meng, Y.; Jacobsen, S. D.; Freedman, D. E. ACS Cent. Sci. 2016, 2, 867–871. This work was highlighted by Science Magazine, ACS Central Science, Chemistry World, C&E News, Chemistry Views, Phys.org, Futurism, HPCAT, and CDAC, and was also featured on the ACS Central Science homepage!

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Long Coherence Times in Nuclear Spin-Free Vanadyl Qubits
Yu, C.-J.; Graham, M. J.; Zadrozny, J. M.; Niklas, J.; Krzyaniak, M.; Wasielewski, M. R.; Poluektov, O. G.; Freedman, D. E. J. Am. Chem. Soc. 2016, 138, 14678–14685.

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Discovery of a Superconducting Cu–Bi Intermetallic Compound by High-pressure Synthesis
Clarke, S. M.; Walsh, J. P. S.; Amsler, M.; Malliakas, C. D.; Yu, T.; Goedecker, S.; Wang, Y.; Wolverton, C.; Freedman, D. E. Angew. Chem. Int. Ed. 2016, 55, 13446–13449.

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Enhancement of Magnetic Anisotropy in a Mn–Bi Heterobimetallic Complex
Pearson, T. J.; Fataftah, M. S. Freedman, D. E. Chem. Commun. 2016, 52, 11394–11397.

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Unexpected Suppression of Spin-Lattice Relaxation via High Magnetic Field in a High-Spin Iron(III) Complex
Zadrozny, J. M.; Graham, M. J.; Krzyaniak, M. D.; Wasielewski, M. R.; Freedman, D. E. Chem. Commun. 2016, 52, 10175–10178.

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Transformation of the Coordination Complex [Co(C₃S₅)₂]²⁻ from a
Molecular Magnet to a Potential Qubit
Fataftah, M. S.; Coste, S. C.; Vlaisavljevich, B.; Zadrozny, J. M.; Freedman, D. E. Chem. Sci. 2016, 7, 6160–6166.

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Employing Forbidden Transitions as Qubits in a Nuclear Spin-Free Chromium Complex
Fataftah, M. S.; Zadrozny, J. M.; Coste, S. C.; Graham, M. J.; Rogers, D. M.; Freedman, D. E. J. Am. Chem. Soc. 2016, 138, 1344–1348.

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Qubit Control Limited by Spin–Lattice Relaxation in a Nuclear Spin–Free Iron(III) Complex
Zadrozny, J. M.; Freedman, D. E. Inorg. Chem. 2015, 54, 12027–12031.

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Millisecond Coherence Time in a Tunable Molecular Electronic Spin Qubit
Zadrozny, J. M.; Niklas, J.; Poluektov, O. G.; Freedman, D. E. ACS Cent. Sci. 2015, 1, 488–492. This work was highlighted by ACS Central Science, Daily Mail, and Phys.org!

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A Flexible Iron(II) Complex in which Zero-Field Splitting is Resistant to Structural Variation
Zadrozny, J. M.; Greer, S. M.; Hill, S.; Freedman, D. E. Chem. Sci. 2016, 7, 416–423.

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(BiSe)_1.23CrSe₂ and (BiSe)_1.22(Cr_1.2Se₂)₂: Magnetic Anisotropy in the First Structurally Characterized Bi-Se-Cr Ternary Compounds
Clarke, S. M.; Freedman, D. E. Inorg. Chem. 2015, 54, 2765–2771.

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Multiple Quantum Coherences from Hyperfine Transitions in a Vanadium(IV) Complex
Zadrozny, J. M.; Niklas, J.; Poluektov, O. G.; Freedman, D. E. J. Am. Chem. Soc. 2014, 136, 15841–15844.

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A Mononuclear Transition Metal Single-Molecule Magnet in a Nuclear Spin-Free Ligand Environment
Fataftah, M. S.; Zadrozny, J. M.; Rogers, D. M.; Freedman, D. E. Inorg. Chem. 2014, 53, 10716–10721.

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Influence of Electronic Spin and Spin–Orbit Coupling on Decoherence in Mononuclear Transition Metal Complexes
Graham, M. J.; Zadrozny, J. M.; Shiddiq, M.; Anderson, J. S.; Fataftah, M. S.; Hill, S.; Freedman, D. E. J. Am. Chem. Soc. 2014, 136, 7623–7626. This work was highlighted by JACS and the National High Magnetic Field Laboratory!

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Accelerating Functional Materials Discovery
Rondinelli, J. R.; Benedek, N. A.; Freedman, D. E.; Kavner, A.; Rodriguez, E. E.; Toberer, E. S.; Martin, L. W. Am. Ceram. Soc. Bull. 2013, 92, 14.

Publications from previous research

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Magnetic Transitions in the Topological Magnon Insulator Cu(1,3-bdc)
Chisnell, R.; Helton, J. S.; Freedman, D. E.; Singh, D. K.; Demmel, F.; Stock, C.; Nocera, D. G.; Lee, Y. S. Phys. Rev. B 2016, 93, 214403.

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Topological Magnon Bands in a Kagome Lattice Ferromagnet
Chisnell, R; Helton, J. S.; Freedman, D. E.; Singh, D. K.; Bewley, R. I.; Nocera, D. G.; Lee, Y. S. Phys. Rev. Lett. 2015, 115, 147201.

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Thermodynamic Properties of the Quantum Spin Liquid Candidate ZnCu₃(OH)₆Cl₂ in High Magnetic Fields
Han, T.-H.; Chisnell, R.; Bonnoit, C. J.; Freedman, D. E.; Zapf, V. S.; Harrison, N.; Nocera, D. G.; Takano, Y.; Lee, Y. S. arXiv:1402.2693 [cond-mat.str-el] 2014.

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Frustrated Magnetism in a Ni²⁺ Kagomé Lattice BaNi₃(OH)₂(VO₄)₂
Freedman, D. E.; Chisnell, R.; McQueen, T. M.; Lee, Y. S.; Payen, C.; Nocera, D. G. Chem. Commun. 2012, 48, 64–66.

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CdCu₃(OH)₆Cl₂: A New Layered Hydroxide Chloride
McQueen, T. M.; Han, T. H.; Freedman, D. E.; Stephens, P. W.; Lee, Y. S.; Nocera, D. G. J. Solid State Chem. 2011, 184, 3319–3323.

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Dinitrogen Binding at Vanadium in a Tris(alkoxide) Ligand Environment
Groysman, S.; Villagran, D.; Freedman, D. E.; Nocera, D. G. Chem. Commun. 2011, 47, 10242–10244.

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Slow Magnetic Relaxation in a Family of Trigonal Pyramidal Iron(II) Pyrrolide Complexes
Harman, W. H.; Harris, T. D.; Freedman, D. E.; Fong, H.; Chang, A.; Rinehart, J. D.; Ozarowski, A.; Sougrati, M. T.; Grandjean, F.; Long, G.; Long, J. R.; Chang, C. J. Am. Chem. Soc., 2010, 132, 18115–18126.

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Site Specific X-ray Anomalous Dispersion of the Geometrically Frustrated Kagomé Magnet, Herbertsmithite, ZnCu₃(OH)₆Cl₂
Freedman, D. E.; Han, T. H.; Prodi, A.; Muller, P.; Huang, Q.-Z. Chen, Y.-S.; Webb, S. M.; Lee, Y. S.; McQueen, T. M.; Nocera, D. G. J. Am. Chem. Soc. 2010, 132 (45), 16185–16190.

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Slow Magnetic Relaxation and Charge Transfer in Cyano-Bridged Coordination Clusters Incorporating [Re(CN)₇]^4−/3−
Zadrozny, J. M.; Freedman, D. E.; Jenkins, D. M; Harris, T. D.; Iavarone, A. T.; Harte, E; Mathonière, C.; Clérac, R.; Long, J. R. Inorg. Chem. 2010, 49, 8886–8896.

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A Cu²⁺(S = 1/2) Kagomé Antiferromagnet: Mg_xCu_4−x(OH)₆Cl₂
Chu, S.; McQueen, T. M.; Chisnell, R.; Freedman, D. E.; Muller, P.; Lee, Y. S.; Nocera, D. G. J. Am. Chem. Soc. 2010, 132, 5570–5571.

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Slow Magnetic Relaxation in a High-Spin Iron (II) Complex
Freedman, D. E.; Harman, W. H.; Harris, T. D.; Long, G. J.; Chang, C. J.; Long, J. R. J. Am. Chem. Soc. 2010, 132, 1224–1225.

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Strong Magnetic Coupling in Two Molecules Incorporating [Cr(CN)₆]³⁻ and [Mo(CN)₆]³⁻
Freedman, D. E.; Jenkins, D. M.; Long, J. R. Chem. Commun. 2009, 4829–4831.

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A Redox-Switchable Single-Molecule Magnet Incorporating [Re(CN)₇]³⁻
Freedman, D. E.; Jenkins, D. M.; Iavarone, A. T.; Long, J. R. J. Am. Chem. Soc. 2008, 130, 2884–2885.

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Symmetry-Breaking Substitutions of [Re(CN)₈]³⁻ into the Centered, Face-Capped Octahedral Clusters (CH₃OH)₂₄M₉M’₆(CN)₄₈ (M = Mn, Co; M’ = Mo, W)
Freedman, D. E.; Bennett, M. V.; Long, J. R. Dalton Trans. 2006, 2829–2834.

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2,3-Dihydroxy-N-methylbenzamide monohydrate
Escalada, J.; Freedman, D.; Werner, E. J. Acta Cryst. 2004, E60, o1296–o1298.