Outputs (16)

Vibrational Damping Reveals Vibronic Coupling in Thermally Activated Delayed Fluorescence Materials (2021)
Journal Article
Hempe, M., Kukhta, N. A., Danos, A., Fox, M. A., Batsanov, A. S., Monkman, A. P., & Bryce, M. R. (2021). Vibrational Damping Reveals Vibronic Coupling in Thermally Activated Delayed Fluorescence Materials. Chemistry of Materials, 33(9), 3066-3080. https://doi.org/10.1021/acs.chemmater.0c03783

We investigate a series of D–A molecules consisting of spiro[acridan-9,9′-fluorene] as the donor and 2-phenylenepyrimidine as the acceptor. In two of the materials, a spiro center effectively electronically isolates the D unit from (consequently) opt... Read More about Vibrational Damping Reveals Vibronic Coupling in Thermally Activated Delayed Fluorescence Materials.

Exploiting trifluoromethyl substituents for tuning orbital character of singlet and triplet states to increase the rate of thermally activated delayed fluorescence (2020)
Journal Article
Ward, J. S., Danos, A., Stachelek, P., Fox, M. A., Batsanov, A. S., Monkman, A. P., & Bryce, M. R. (2020). Exploiting trifluoromethyl substituents for tuning orbital character of singlet and triplet states to increase the rate of thermally activated delayed fluorescence. Materials Chemistry Frontiers, 4(12), https://doi.org/10.1039/d0qm00429d

Cyclophane Molecules Exhibiting Thermally Activated Delayed Fluorescence: Linking Donor Units to Influence Molecular Conformation (2020)
Journal Article
Hempe, M., Harrison, A. K., Ward, J. S., Batsanov, A. S., Fox, M. A., Dias, F. B., & Bryce, M. R. (2021). Cyclophane Molecules Exhibiting Thermally Activated Delayed Fluorescence: Linking Donor Units to Influence Molecular Conformation. Journal of Organic Chemistry, 86(1), 429-445. https://doi.org/10.1021/acs.joc.0c02174

The synthetic methodology to covalently link donors to form cyclophane-based thermally activated delayed fluorescence (TADF) molecules is presented. These are the first reported examples of TADF cyclophanes with “electronically innocent” bridges betw... Read More about Cyclophane Molecules Exhibiting Thermally Activated Delayed Fluorescence: Linking Donor Units to Influence Molecular Conformation.

Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands (2020)
Journal Article
Benjamin, H., Zheng, Y., Kozhevnikov, V. N., Siddle, J. S., O'Driscoll, L. J., Fox, M. A., Batsanov, A. S., Griffiths, G. C., Dias, F. B., Monkman, A. P., & Bryce, M. R. (2020). Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands. Dalton Transactions, 49(7), 2190-2208. https://doi.org/10.1039/c9dt04672k

Five new neutral heteroleptic iridium(III) complexes IrL2(pic) (2–6) based on the archetypical blue emitter FIrpic have been synthesised. The cyclometallating ligands L are derived from 2-(2,6-F2-3-pyridyl)-4-mesitylpyridine (7), 2-(3-cyano-2,6-F2-ph... Read More about Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands.

Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems (2019)
Journal Article
Ward, J. S., Nobuyasu, R. S., Fox, M. A., Aguilar, J. A., Hall, D., Batsanov, A. S., Ren, Z., Dias, F. B., & Bryce, M. R. (2019). Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems. Journal of Organic Chemistry, 84(7), 3801-3816. https://doi.org/10.1021/acs.joc.8b02848

Thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP) are known to occur in organic D–A–D and D–A systems where the donor group contains the phenothiazine unit and the acceptor is dibenzothiophene-S,S-dioxide. Thi... Read More about Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems.

Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence (2018)
Journal Article
Ward, J. S., Nobuyasu, R. S., Fox, M. A., Batsanov, A. S., Santos, J., Dias, F. B., & Bryce, M. R. (2018). Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence. Journal of Organic Chemistry, 83(23), 14431-14442. https://doi.org/10.1021/acs.joc.8b02187

The synthesis of 1-methylphenoxazine via CO2-directed lithiation chemistry is reported. This electron donor was coupled with 2,8-dibenzothiophene-S,S-dioxide with Buchwald–Hartwig chemistry to give a new D–A–D charge-transfer fluorescent molecule 1b.... Read More about Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence.

Pyridylpyrazole N^N Ligands Combined with Sulfonyl-Functionalised Cyclometalating Ligands for Blue-Emitting Iridium(III) Complexes and Solution-Processable PhOLEDs (2017)
Journal Article
Benjamin, H., Fox, M. A., Batsanov, A. S., Al-Attar, H. A., Li, C., Ren, Z., …Bryce, M. R. (2017). Pyridylpyrazole N^N Ligands Combined with Sulfonyl-Functionalised Cyclometalating Ligands for Blue-Emitting Iridium(III) Complexes and Solution-Processable PhOLEDs. Dalton Transactions, 46, 10996-11007. https://doi.org/10.1039/c7dt02289a

A series of blue iridium(III) complexes (12–15) comprising sulfonyl-functionalised phenylpyridyl cyclometalating ligands and pyridylpyrazole N^N ligands are reported, with an X-ray crystal structure obtained for 12. The complexes are highly emissive... Read More about Pyridylpyrazole N^N Ligands Combined with Sulfonyl-Functionalised Cyclometalating Ligands for Blue-Emitting Iridium(III) Complexes and Solution-Processable PhOLEDs.

The Contributions of Molecular Vibrations and Higher Triplet Levels to the Intersystem Crossing Mechanism in Metal-Free Organic Emitters (2017)
Journal Article
Huang, R., Avó, J., Northey, T., Chaning-Pearce, E., dos Santos, P. L., Ward, J. S., …Dias, F. B. (2017). The Contributions of Molecular Vibrations and Higher Triplet Levels to the Intersystem Crossing Mechanism in Metal-Free Organic Emitters. Journal of Materials Chemistry C Materials for optical and electronic devices, 5(25), 6269-6280. https://doi.org/10.1039/c7tc01958k

Intense, simultaneous, room temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) is observed in a series of donor-acceptor-donor (D–A–D) molecules. This dual-luminescence is stronger in the “angular” isomers, compared... Read More about The Contributions of Molecular Vibrations and Higher Triplet Levels to the Intersystem Crossing Mechanism in Metal-Free Organic Emitters.

Sulfonyl-Substituted Heteroleptic Cyclometalated Iridium(III) Complexes as Blue Emitters for Solution-Processable Phosphorescent Organic Light-Emitting Diodes (2016)
Journal Article
Benjamin, H., Zheng, Y., Batsanov, A., Fox, M., Al-Attar, H., Monkman, A., & Bryce, M. (2016). Sulfonyl-Substituted Heteroleptic Cyclometalated Iridium(III) Complexes as Blue Emitters for Solution-Processable Phosphorescent Organic Light-Emitting Diodes. Inorganic Chemistry, 55(17), 8612-8627. https://doi.org/10.1021/acs.inorgchem.6b01179

The synthesis is reported of a series of blue-emitting heteroleptic iridium complexes with phenylpyridine (ppy) ligands substituted with sulfonyl, fluorine, and/or methoxy substituents on the phenyl ring and a picolinate (pic) ancillary ligand. Some... Read More about Sulfonyl-Substituted Heteroleptic Cyclometalated Iridium(III) Complexes as Blue Emitters for Solution-Processable Phosphorescent Organic Light-Emitting Diodes.

The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices (2016)
Journal Article
Dias, F., Santos, J., Graves, D., Data, P., Nobuyasu, R., Fox, M., …Monkman, A. (2016). The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices. Advanced Science, 3(12), Article 1600080. https://doi.org/10.1002/advs.201600080

Here, a comprehensive photophysical investigation of a the emitter molecule DPTZ-DBTO2, showing thermally activated delayed fluorescence (TADF), with near-orthogonal electron donor (D) and acceptor (A) units is reported. It is shown that DPTZ-DBTO2 h... Read More about The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices.

Bimetallic Cyclometalated Iridium(III) Diastereomers with Non-Innocent Bridging Ligands for High-Efficiency Phosphorescent OLEDs (2014)
Journal Article
Zheng, Y., Batsanov, A., Fox, M., Al-Attar, H., Abdullah, K., Jankus, V., …Monkman, A. (2014). Bimetallic Cyclometalated Iridium(III) Diastereomers with Non-Innocent Bridging Ligands for High-Efficiency Phosphorescent OLEDs. Angewandte Chemie International Edition, 53(43), 11616-11619. https://doi.org/10.1002/anie.201407475

Two phosphorescent dinuclear iridium(III) diastereomers (ΛΔ/ΔΛ) and (ΛΛ/ΔΔ) are readily separated by making use of their different solubilities in hot hexane. The bridging diarylhydrazide ligand plays an important role in the electrochemistry and pho... Read More about Bimetallic Cyclometalated Iridium(III) Diastereomers with Non-Innocent Bridging Ligands for High-Efficiency Phosphorescent OLEDs.

Ultrafast Dynamics and Computational Studies on Diaminodicyanoquinodimethanes (DADQs) (2014)
Journal Article
Szablewski, M., Fox, M., Dias, F., Namih, H., Snedden, E., King, S., …Pålsson, L. (2014). Ultrafast Dynamics and Computational Studies on Diaminodicyanoquinodimethanes (DADQs). Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 118(24), 6815-6828. https://doi.org/10.1021/jp411358d

Three diaminodicyanoquinodimethanes, 4-(R1R2C)-1-[(NC)2C]-C6H4 (R1,R2 = H2N, 1; R1 = 3,5-Me2-4-OCH4H6N–, R2 = H2N, 2; R1 = 3,5-Me2-4-OCH4H6N–, R2 = 4-Me-C5H9N, 3), were investigated using carbon-13 NMR, steady-state, and ultrafast transient absorptio... Read More about Ultrafast Dynamics and Computational Studies on Diaminodicyanoquinodimethanes (DADQs).

Dinuclear iridium(III) complexes of cyclometalated fluorenylpyridine ligands as phosphorescent dopants for efficient solution-processed OLEDs (2012)
Journal Article
M'hamedi, A., Batsanov, A. S., Fox, M. A., Bryce, M. R., Abdullah, K., Al-Attar, H. A., & Monkman, A. P. (2012). Dinuclear iridium(III) complexes of cyclometalated fluorenylpyridine ligands as phosphorescent dopants for efficient solution-processed OLEDs. Journal of materials chemistry, 22(27), 13529-13540. https://doi.org/10.1039/c2jm31143g

Highly Efficient, Solution-Processed, Single-Layer, Electrophosphorescent Diodes and the Effect of Molecular Dipole Moment (2011)
Journal Article
Al-Attar, H., Griffiths, G., Moore, T., Tavasli, M., Fox, M., Bryce, M., & Monkman, A. (2011). Highly Efficient, Solution-Processed, Single-Layer, Electrophosphorescent Diodes and the Effect of Molecular Dipole Moment. Advanced Functional Materials, 21(12), 2376-2382. https://doi.org/10.1002/adfm.201100324

A new family of highly soluble electrophosphorescent dopants based on a series of tris-cyclometalated iridium(III) complexes (1-4) of 2-(carbazol-3-yl)-4/5-R-pyridine ligands with varying molecular dipole strengths have been synthesized. Highly effic... Read More about Highly Efficient, Solution-Processed, Single-Layer, Electrophosphorescent Diodes and the Effect of Molecular Dipole Moment.

Luminescent Platinum(II) Complexes Containing Cyclometallated Diaryl Ketimine Ligands: Synthesis, Photophysical and Computational Properties (2010)
Journal Article
Pandya, S., Moss, K., Bryce, M., Batsanov, A., Fox, M., Jankus, V., …Monkman, A. (2010). Luminescent Platinum(II) Complexes Containing Cyclometallated Diaryl Ketimine Ligands: Synthesis, Photophysical and Computational Properties. European Journal of Inorganic Chemistry, 2010(13), 1963-1972. https://doi.org/10.1002/ejic.200901159

A new series of platinum(II) complexes containing cyclometallated diaryl ketimine ligands has been synthesised. The route involves reaction of diaryl ketimines with K[PtCl3(dmso)] to obtain trans-[PtCl2(imine)(dmso)] species, which underwent cyclomet... Read More about Luminescent Platinum(II) Complexes Containing Cyclometallated Diaryl Ketimine Ligands: Synthesis, Photophysical and Computational Properties.

Tuning the Intramolecular Charge Transfer Emission from Deep Blue to Green in Ambipolar Systems Based On Dibenzothiophene S S-Dioxide by Manipulation of Conjugation and Strength of the Electron Donor Units (2010)
Journal Article
Moss, K., Bourdakos, K., Bhalla, V., Kamtekar, K., Bryce, M., Fox, M., …Monkman, A. (2010). Tuning the Intramolecular Charge Transfer Emission from Deep Blue to Green in Ambipolar Systems Based On Dibenzothiophene S S-Dioxide by Manipulation of Conjugation and Strength of the Electron Donor Units. Journal of Organic Chemistry, 75(20), 6771-6781. https://doi.org/10.1021/jo100898a

The efficient synthesis and photophysical properties of a series of ambipolar donor−acceptor−donor systems is described where the acceptor is dibenzothiophene S,S-dioxide and the donor is fluorene, carbazole, or arylamine. The systems exhibit intramo... Read More about Tuning the Intramolecular Charge Transfer Emission from Deep Blue to Green in Ambipolar Systems Based On Dibenzothiophene S S-Dioxide by Manipulation of Conjugation and Strength of the Electron Donor Units.