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Showing 1 to 12 of 51 entries
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Spin-Selective Photoreduction of a Stable Radical within a Covalent Donor-Acceptor-Radical Triad.

Journal of the American Chemical Society

Rugg BK, Phelan BT, Horwitz NE, Young RM, Krzyaniak MD, Ratner MA, Wasielewski MR.
PMID: 29072446
J Am Chem Soc. 2017 Nov 08;139(44):15660-15663. doi: 10.1021/jacs.7b10458. Epub 2017 Oct 31.

Controlling spin-spin interactions in multispin molecular assemblies is important for developing new approaches to quantum information processing. In this work, a covalent electron donor-acceptor-radical triad is used to probe spin-selective reduction of the stable radical to its diamagnetic anion....

Probing Nuclear Spin Effects on Electronic Spin Coherence via EPR Measurements of Vanadium(IV) Complexes.

Inorganic chemistry

Graham MJ, Krzyaniak MD, Wasielewski MR, Freedman DE.
PMID: 28657714
Inorg Chem. 2017 Jul 17;56(14):8106-8113. doi: 10.1021/acs.inorgchem.7b00794. Epub 2017 Jun 28.

Quantum information processing (QIP) has the potential to transform numerous fields from cryptography, to finance, to the simulation of quantum systems. A promising implementation of QIP employs unpaired electronic spins as qubits, the fundamental units of information. Though molecular...

Effect of Redox "Non-Innocent" Linker on the Catalytic Activity of Copper-Catecholate-Decorated Metal-Organic Frameworks.

ACS applied materials & interfaces

Zhang X, Vermeulen NA, Huang Z, Cui Y, Liu J, Krzyaniak MD, Li Z, Noh H, Wasielewski MR, Delferro M, Farha OK.
PMID: 29278492
ACS Appl Mater Interfaces. 2018 Jan 10;10(1):635-641. doi: 10.1021/acsami.7b15326. Epub 2017 Dec 26.

Two new UiO-68 type of Zr-MOFs featuring redox non-innocent catechol-based linkers of different redox activities have been synthesized through a de novo mixed-linker strategy. Metalation of the MOFs with Cu(II) precursors triggers the reduction of Cu(II) by the phenyl-catechol...

Photodriven quantum teleportation of an electron spin state in a covalent donor-acceptor-radical system.

Nature chemistry

Rugg BK, Krzyaniak MD, Phelan BT, Ratner MA, Young RM, Wasielewski MR.
PMID: 31548665
Nat Chem. 2019 Nov;11(11):981-986. doi: 10.1038/s41557-019-0332-8. Epub 2019 Sep 23.

Quantum teleportation transfers the quantum state of a system over an arbitrary distance from one location to another through the agency of quantum entanglement. Because quantum teleportation is essential to many aspects of quantum information science, it is important...

Vanadium Catalyst on Isostructural Transition Metal, Lanthanide, and Actinide Based Metal-Organic Frameworks for Alcohol Oxidation.

Journal of the American Chemical Society

Wang X, Zhang X, Li P, Otake KI, Cui Y, Lyu J, Krzyaniak MD, Zhang Y, Li Z, Liu J, Buru CT, Islamoglu T, Wasielewski MR, Li Z, Farha OK.
PMID: 31083934
J Am Chem Soc. 2019 May 22;141(20):8306-8314. doi: 10.1021/jacs.9b02603. Epub 2019 May 14.

The understanding of the catalyst-support interactions has been an important challenge in heterogeneous catalysis since the supports can play a vital role in controlling the properties of the active species and hence their catalytic performance. Herein, a series of...

Charge Transfer and Spin Dynamics in a Zinc Porphyrin Donor Covalently Linked to One or Two Naphthalenediimide Acceptors.

The journal of physical chemistry. A

Bancroft L, Zhang J, Harvey SM, Krzyaniak MD, Zhang P, Schaller RD, Beratan DN, Young RM, Wasielewski MR.
PMID: 33449684
J Phys Chem A. 2021 Jan 28;125(3):825-834. doi: 10.1021/acs.jpca.0c10471. Epub 2021 Jan 15.

Quantum coherence effects on charge transfer and spin dynamics in a system having two degenerate electron acceptors are studied using a zinc 5,10,15-tri(

Competition between Singlet Fission and Spin-Orbit-Induced Intersystem Crossing in Anthanthrene and Anthanthrone Derivatives.

ChemPlusChem

Jue Bae Y, Krzyaniak MD, Majewski MB, Desroches M, Morin JF, Wu YL, Wasielewski MR.
PMID: 31944060
Chempluschem. 2019 Sep;84(9):1432-1438. doi: 10.1002/cplu.201900410. Epub 2019 Aug 21.

Singlet and triplet excited-state dynamics of anthanthrene and anthanthrone derivatives in solution are studied. Triisopropylsilyl- (TIPS) or H-terminated ethynyl groups are used to tune the singlet and triplet energies to enable their potential applications in singlet fission and triplet...

Stabilization of Photocatalytically Active Uranyl Species in a Uranyl-Organic Framework for Heterogeneous Alkane Fluorination Driven by Visible Light.

Inorganic chemistry

Zhang X, Li P, Krzyaniak M, Knapp J, Wasielewski MR, Farha OK.
PMID: 32484338
Inorg Chem. 2020 Dec 07;59(23):16795-16798. doi: 10.1021/acs.inorgchem.0c00850. Epub 2020 Jun 02.

When photoactivated, the uranyl ion is a powerful oxidant capable of abstracting hydrogen atoms from nonactivated C-H bonds. However, the highly reactive singly reduced [U

Spin-Selective Photoinduced Electron Transfer within Naphthalenediimide Diradicals.

The journal of physical chemistry. B

La Porte NT, Christensen JA, Krzyaniak MD, Rugg BK, Wasielewski MR.
PMID: 31418270
J Phys Chem B. 2019 Sep 12;123(36):7731-7739. doi: 10.1021/acs.jpcb.9b06303. Epub 2019 Aug 30.

There has been increasing interest in the excited states of stable diradicals as means of manipulating their spin states for potential applications in quantum information science (QIS). In this work, we examine a set of diradicals composed of two...

Picosecond Control of Photogenerated Radical Pair Lifetimes Using a Stable Third Radical.

The journal of physical chemistry. A

Horwitz NE, Phelan BT, Nelson JN, Krzyaniak MD, Wasielewski MR.
PMID: 27108738
J Phys Chem A. 2016 May 12;120(18):2841-53. doi: 10.1021/acs.jpca.6b02621. Epub 2016 May 03.

Photoinduced electron transfer reactions in organic donor-acceptor systems leading to long-lived radical ion pairs (RPs) have attracted broad interest for their potential applications in fields as diverse as solar energy conversion and spintronics. We present the photophysics and spin...

X-Shaped Oligomeric Pyromellitimide Polyradicals.

Journal of the American Chemical Society

Wu Y, Han JM, Hong M, Krzyaniak MD, Blackburn AK, Fernando IR, Cao DD, Wasielewski MR, Stoddart JF.
PMID: 29215275
J Am Chem Soc. 2018 Jan 10;140(1):515-523. doi: 10.1021/jacs.7b12124. Epub 2017 Dec 21.

The synthesis of stable organic polyradicals is important for the development of magnetic materials. Herein we report the synthesis, isolation, and characterization of a series of X-shaped pyromellitimide (PI) oligomers (X

Combining Intra- and Intermolecular Charge Transfer with Polycationic Cyclophanes To Design 2D Tessellations.

Journal of the American Chemical Society

Cetin MM, Beldjoudi Y, Roy I, Anamimoghadam O, Bae YJ, Young RM, Krzyaniak MD, Stern CL, Philp D, Alsubaie FM, Wasielewski MR, Stoddart JF.
PMID: 31580664
J Am Chem Soc. 2019 Nov 27;141(47):18727-18739. doi: 10.1021/jacs.9b07877. Epub 2019 Nov 15.

A series of donor-acceptor (D-A) naphthalene-viologen-based cyclophanes of different shapes, sizes, and symmetries have been synthesized and characterized. Solution optical studies on these cyclophanes reveal the existence of photoinduced intramolecular charge transfer (CT) at 465 nm from naphthalene (D)...

Showing 1 to 12 of 51 entries