Bridge connectivity effects on photoinduced ground-state electron spin polarization.

Authors: Shultz, David A., Marri, Anil Reddy, Nogueira, Andre M., Mishra, Vivek K., Kirk, Martin L., van der Est, Art

Source: Journal of Chemical Physics; 2/28/2025, Vol. 162 Issue 8, p1-8, 8p

Subject Terms: POLARIZED electrons, ELECTRON spin, SPIN polarization, ELECTRON paramagnetic resonance, ELECTRONIC probes, NITROXIDES

Spin polarization generated by reversible doublet-quartet transitions in photoexcited chromophore-radical conjugates.

Authors: Kandrashkin, Yuri E.¹ (AUTHOR) yuk@kfti.knc.ru, van der Est, Art² (AUTHOR)

Source: Journal of Chemical Physics. 2/21/2025, Vol. 162 Issue 7, p1-15. 15p.

Subject Terms: *EXCHANGE interactions (Magnetism), *REVERSIBLE phase transitions, *SPIN polarization, *SPIN-orbit interactions

Electron spin polarization in the triplet state of methoxy-substituted phosphorus(V) tetraphenyl porphyrins

Authors: D. Panariti, B.J. Bayard, A. Barbon, Y.E. Kandrashkin, P.K. Poddutoori, A. van der Est, M. Di Valentin

Source: Journal of Magnetic Resonance Open, Vol 21, Iss , Pp 100169- (2024)

Subject Terms: EPR, Triplet state, Phosphorus porphyrins, Electron spin polarization, Radical hyperpolarization, Intersystem crossing, Medical physics. Medical radiology. Nuclear medicine, R895-920, Physics, QC1-999

File Description: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S2666441024000244; https://doaj.org/toc/2666-4410

Access URL: https://doaj.org/article/1cc1ff82539a49ecbfbfee4b5f9fcd57

Electronic structure and energetics of a heterodimeric BChl g′/Chl a′ special pair generated by exposure of Heliomicrobium modesticaldum to dioxygen

Authors: Kaur, Divya, Ferlez, Bryan, Landry, Patrick, Biskup, Till, Weber, Stefan, Golbeck, John H., Lakshmi, K. V., van der Est, Art

Source: Physical chemistry chemical physics. 25(39):26894-26905

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100195371024.0x000001&indx=1&recIds=ETOCvdc_100195371024.0x000001

Competitive reversed quartet mechanisms for photogenerated ground state electron spin polarizationElectronic supplementary information (ESI) available: Frozen solution EPR spectra are devoid of features characteristic of aggregation and are stable to extended irradiation at 532 nm. See Fig. S2 and S3 for details. See DOI: https://doi.org/10.1039/d3sc03049k

Authors: Kirk, Martin L., Shultz, David A., Hewitt, Patrick, Marri, Anil Reddy, van der Est, Art

Source: Chemical science. 14(36):9689-9695

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100193382374.0x000001&indx=1&recIds=ETOCvdc_100193382374.0x000001

Optically detected magnetic resonance and mutational analysis reveal significant differences in the photochemistry and structure of chlorophyll f synthase and photosystem II

Authors: Agostini, Alessandro, Shen, Gaozhong, Bryant, Donald A., Golbeck, John H., van der Est, Art, Carbonera, Donatella

Source: In BBA - Bioenergetics 1 November 2023 1864(4)

The electronic structure and dynamics of the excited triplet state of octaethylaluminum(III)-porphyrin investigated with advanced EPR methods

Authors: Carella, Angelo, Ciuti, Susanna, Wiedemann, Haakon T.A., Kay, Christopher W.M., van der Est, Arthur, Carbonera, Donatella, Barbon, Antonio, Poddutoori, Prashanth K., Di Valentin, Marilena

Source: In Journal of Magnetic Resonance August 2023 353

Single-Photon-Induced Electron Spin Polarization of Two Exchange-Coupled Stable Radicals

Authors: Kirk, Martin L., Shultz, David A., Marri, Anil Reddy, Hewitt, Patrick, van der Est, Art

Source: Journal of the American Chemical Society. 144(46):21005-21009

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN630689477&indx=1&recIds=ETOCRN630689477

Solvent dependent triplet state delocalization in a co-facial porphyrin heterodimerElectronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d2cp04291f

Authors: Ciuti, Susanna, Toninato, Jacopo, Barbon, Antonio, Zarrabi, Niloofar, Poddutoori, Prashanth K., van der Est, Art, Di Valentin, Marilena

Source: Physical chemistry chemical physics. 24(48):30051-30061

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100168302836.0x000001&indx=1&recIds=ETOCvdc_100168302836.0x000001

Sequential electron transfer in a bis(styryl)BODIPY—aluminum(III) porphyrin—naphthalenediimide reaction center mimic

Authors: Zarrabi, Niloofar, Holzer, Noah, Lim, Gary N., Obondi, Christopher O., van der Est, Art, D Souza, Francis, Poddutoori, Prashanth K.

Source: Journal of porphyrins and phthalocyanines. 26(5):407-417

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN630200980&indx=1&recIds=ETOCRN630200980

Excited State Magneto-Structural Correlations Related to Photoinduced Electron Spin Polarization

Authors: Kirk, Martin L., Shultz, David A., Hewitt, Patrick, Chen, Ju, van der Est, Art

Source: Journal of the American Chemical Society. 144(28):12781-12788

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN629835063&indx=1&recIds=ETOCRN629835063

Photoinduced energy and electron transfer in a cofacial aluminum(III) porphyrin – Phosphorus(V) porphyrin heterodimer

Authors: Bayard, Brandon J., Zarrabi, Niloofar, Seetharaman, Sairaman, Karr, Paul, van der Est, Art, D'Souza, Francis, Poddutoori, Prashanth K.

Source: In Journal of Photochemistry and Photobiology December 2021 8

Liposome fusion with orthogonal coiled coil peptides as fusogens: the efficacy of roleplaying peptidesElectronic supplementary information (ESI) available. See DOI: 10.1039/d0sc06635d

Authors: Daudey, Geert A., Shen, Mengjie, Singhal, Ankush, van der Est, Patrick, Sevink, G. J. Agur, Boyle, Aimee L., Kros, Alexander

Source: Chemical science. 12(41):13782-13792

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100132410636.0x000001&indx=1&recIds=ETOCvdc_100132410636.0x000001

Chromophore-radical excited state antiferromagnetic exchange controls the sign of photoinduced ground state spin polarizationElectronic supplementary information (ESI) available: Synthesis and characterization of 6-Me-mPh-Pt and related complexes, X-ray crystallographic analysis for LZn(SQ-6-Me-mPh-NN). CCDC 2087657. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/d1sc02965g

Authors: Kirk, Martin L., Shultz, David A., Hewitt, Patrick, Stasiw, Daniel E., Chen, Ju, van der Est, Art

Source: Chemical science. 12(41):13704-13710

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100132410647.0x000001&indx=1&recIds=ETOCvdc_100132410647.0x000001

Metal Ion Control of Photoinduced Electron Spin Polarization in Electronic Ground States

Authors: Kirk, Martin L., Shultz, David A., Chen, Ju, Hewitt, Patrick, Daley, David, Paudel, Sangita, van der Est, Art

Source: Journal of the American Chemical Society. 143(28):10519-10523

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN627258925&indx=1&recIds=ETOCRN627258925

A charge transfer state induced by strong exciton coupling in a cofacial μ-oxo-bridged porphyrin heterodimerElectronic supplementary information (ESI) available: Details of synthesis and experimental methods, ESI mass spectra, NMR data, absorption data, frontier orbitals of heterodimer, spectral overlaps to calculate E0-0, ECT and ET values, Lippert–Mataga plot, fluorescence spectra, and spectroelectrochemistry of AlPor-OH. See DOI: 10.1039/d0cp05783e

Authors: Zarrabi, Niloofar, Bayard, Brandon J., Seetharaman, Sairaman, Holzer, Noah, Karr, Paul, Ciuti, Susanna, Barbon, Antonio, Di Valentin, Marilena, van der Est, Art, D'Souza, Francis, Poddutoori, Prashanth K.

Source: Physical chemistry chemical physics. 23(2):960-970

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100116414741.0x000001&indx=1&recIds=ETOCvdc_100116414741.0x000001

Electron spin polarization transfer induced by triplet–radical interactions in the weakly coupled regimeElectronic supplementary information (ESI) available: Detailed description of the EPR spectral simulations and the parameters used. See DOI: 10.1039/d0cp03565c

Authors: Dal Farra, Maria Giulia, Martin, Caterina, Bergantino, Elisabetta, Kandrashkin, Yuri E., van der Est, Art, Di Valentin, Marilena

Source: Physical chemistry chemical physics. 22(35):19982-19991

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100108102685.0x000001&indx=1&recIds=ETOCvdc_100108102685.0x000001

Decelerating Charge Recombination Using Fluorinated Porphyrins in N, N-Bis(3, 4, 5-trimethoxyphenyl)aniline—Aluminum(III) Porphyrin—Fullerene Reaction Center Models

Authors: Zarrabi, Niloofar, Seetharaman, Sairaman, Chaudhuri, Subhajyoti, Holzer, Noah, Batista, Victor S., van der Est, Art, D Souza, Francis, Poddutoori, Prashanth K.

Source: Journal of the American Chemical Society. 142(22):10008-10024

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN623977780&indx=1&recIds=ETOCRN623977780

Two-dimensional 67Zn HYSCORE spectroscopy reveals that a Zn-bacteriochlorophyll aP′ dimer is the primary donor (P840) in the type-1 reaction centers of Chloracidobacterium thermophilumElectronic supplementary information (ESI) available: CW and HYSCORE spectra of Zn2+-protoporphyrin IX and C. thermophilum membranes, electron charge density distribution in the P800+ and Zn2+-protoporphyrin IX cation and hyperfine and quadrupolar parameters of the Zn2+-protoporphyrin IX and dimeric Zn2+-BChl g′ cation. See DOI: 10.1039/c9cp06556c

Authors: Charles, Philip, Kalendra, Vidmantas, He, Zhihui, Khatami, Mohammad Hassan, Golbeck, John H., van der Est, Art, Lakshmi, K. V., Bryant, Donald A.

Source: Physical chemistry chemical physics. 22(11):6457-6467

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100100428313.0x000001&indx=1&recIds=ETOCvdc_100100428313.0x000001

Synthesis and structural studies of copper(ii) complex with N2S2 based N-substituted pendant phosphonic acid armsElectronic supplementary information (ESI) available. CCDC 1969818. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c9dt04869c

Authors: Taschner, Ian S., Aubuchon, Ethan, Schrage, Briana R., Ziegler, Christopher J., van der Est, Art

Source: Dalton transactions. 49(11):3545-3552

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100100372045.0x000001&indx=1&recIds=ETOCvdc_100100372045.0x000001