Platinum(II) Complexes of Tridentate ‐Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties (2020)
Journal Article
Puttock, E. V., Sturala, J., Kistemaker, J. C., & Williams, J. G. (2021). Platinum(II) Complexes of Tridentate ‐Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties. European Journal of Inorganic Chemistry, 2021(4), 335-347. https://doi.org/10.1002/ejic.202000879

Five Pt(II) complexes are described in which the metal ion is bound to anionic urn:x-wiley:14341948:media:ejic202000879:ejic202000879-math-0003 ‐coordinating ligands. The central, deprotonated N atom is derived from an imide Ar−C(=O)−NH−C(=O)−Ar {PtL... Read More about Platinum(II) Complexes of Tridentate ‐Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties.

Synthesis, Mesomorphism, Photophysics and Device Performance of Liquid-crystalline Pincer Complexes of Gold(III) (2020)
Journal Article
Parker, R. R., Liu, D., Yu, X., Whitwood, A. C., Zhu, W., Williams, G., …Bruce, D. W. (2021). Synthesis, Mesomorphism, Photophysics and Device Performance of Liquid-crystalline Pincer Complexes of Gold(III). Journal of Materials Chemistry C Materials for optical and electronic devices, https://doi.org/10.1039/d0tc04839a

Extended ligand conjugation and dinuclearity as a route to efficient platinum-based near-infrared (NIR) triplet emitters and solution-processed NIR-OLEDs (2020)
Journal Article
Shafikov, M. Z., Pander, P., Zaytsev, A. V., Daniels, R., Martinscroft, R., Dias, F. B., …Kozhevnikov, V. N. (2021). Extended ligand conjugation and dinuclearity as a route to efficient platinum-based near-infrared (NIR) triplet emitters and solution-processed NIR-OLEDs. Journal of Materials Chemistry C Materials for optical and electronic devices, 9(1), 127-135. https://doi.org/10.1039/d0tc04881j

Near infrared (NIR) emission from molecular materials is typically targeted by using more extended conjugated systems compared to visible-emitting materials. But efficiencies usually fall off due to the combined effects of increasing non-radiative an... Read More about Extended ligand conjugation and dinuclearity as a route to efficient platinum-based near-infrared (NIR) triplet emitters and solution-processed NIR-OLEDs.

Designing magnesium-selective ligands using coordination chemistry principles (2020)
Journal Article
Walter, E. R., Hogg, C., Parker, D., & Gareth Williams, J. (2021). Designing magnesium-selective ligands using coordination chemistry principles. Coordination Chemistry Reviews, 428, Article 213622. https://doi.org/10.1016/j.ccr.2020.213622

Progress in the selective binding and detection of magnesium ions has been slower than other biologically important divalent metal ions like calcium and zinc. The most widely used ligands for Mg2+ are by no means optimal, as they are not selective fo... Read More about Designing magnesium-selective ligands using coordination chemistry principles.

Synthesis, structure, photophysical and chiroptical properties of dinuclear rhenium complexes with a bridging helicene‐bis‐bipyridine ligand (2020)
Journal Article
Crassous, J., Saleh, N., Kundu, D., Vanthuyne, N., Olesiak, J., Pniakowska, A., …Autschbach, J. (2020). Synthesis, structure, photophysical and chiroptical properties of dinuclear rhenium complexes with a bridging helicene‐bis‐bipyridine ligand. ChemPlusChem, 85(11), 2446-2454. https://doi.org/10.1002/cplu.202000559

By attaching pyridine groups to a diaza[6]helicene, a helical, bis‐ditopic, bis‐N^N‐coordinating ligand can be accessed. Dinuclear rhenium complexes featuring this bridging ligand, of the form [{Re(CO)3Cl}2(N^N–N^N)], have been prepared and resolved... Read More about Synthesis, structure, photophysical and chiroptical properties of dinuclear rhenium complexes with a bridging helicene‐bis‐bipyridine ligand.

Deep-Red Luminescence from Platinum(II) Complexes of N^N–^N-Amido Ligands with Benzannulated N-Heterocyclic Donor Arms (2020)
Journal Article
Mandapati, P., Braun, J. D., Lozada, I. B., Williams, J. G., & Herbert, D. E. (2020). Deep-Red Luminescence from Platinum(II) Complexes of N^N–^N-Amido Ligands with Benzannulated N-Heterocyclic Donor Arms. Inorganic Chemistry, 59(17), 12504-12517. https://doi.org/10.1021/acs.inorgchem.0c01584

A synthetic methodology for accessing narrow-band, deep-red phosphorescence from mononuclear Pt(II) complexes is presented. These charge-neutral complexes have the general structure (N^N–^N)PtCl, in which the Pt(II) centers are supported by benzannul... Read More about Deep-Red Luminescence from Platinum(II) Complexes of N^N–^N-Amido Ligands with Benzannulated N-Heterocyclic Donor Arms.

Mono and dinuclear iridium(iii) complexes featuring bis-tridentate coordination and Schiff-base bridging ligands: the beneficial effect of a second metal ion on luminescence (2020)
Journal Article
Puttock, E. V., Sil, A., Yufit, D. S., & Williams, J. G. (2020). Mono and dinuclear iridium(iii) complexes featuring bis-tridentate coordination and Schiff-base bridging ligands: the beneficial effect of a second metal ion on luminescence. Dalton Transactions, 49(30), 10463-10476. https://doi.org/10.1039/d0dt01964j

The synthesis and photophysical properties of a set of iridium(III) complexes featuring tridentate N^N^O-coordinating ligands are described, of generic structure [Ir(N^C^N-dpyx)(N^N^O-Ln)]+ (n = 1 to 4) (dpyx = 1,3-dipyridyl-4,6-dimethylbenzene). The... Read More about Mono and dinuclear iridium(iii) complexes featuring bis-tridentate coordination and Schiff-base bridging ligands: the beneficial effect of a second metal ion on luminescence.

Long‐lived circularly‐polarized phosphorescence in helicene‐NHC‐rhenium(I) complexes: the influence of helicene, halogen and stereochemistry on emission properties (2020)
Journal Article
Crassous, J., Gauthier, E. S., Abella, L., Hellou, N., Darquié, B., Caytan, E., …Autschbach, J. (2020). Long‐lived circularly‐polarized phosphorescence in helicene‐NHC‐rhenium(I) complexes: the influence of helicene, halogen and stereochemistry on emission properties. Angewandte Chemie International Edition, 59(22), 8394-8400. https://doi.org/10.1002/anie.202002387

First enantiopure, chiral‐at‐rhenium complexes of the form fac ‐ReX(CO) 3 (:C^N) have been prepared, where:C^N is a helicene N‐heterocyclic carbene ligand and X = Cl or I. They have shown strong changes in the emission characteristics, notably strong... Read More about Long‐lived circularly‐polarized phosphorescence in helicene‐NHC‐rhenium(I) complexes: the influence of helicene, halogen and stereochemistry on emission properties.

Rotaxane Pt(II)-Complexes: Mechanical Bonding for Chemically Robust Luminophores and Stimuli Responsive Behaviour (2020)
Journal Article
Zhang, Z., Tizzard, G. J., Williams, J. G., & Goldup, S. (2020). Rotaxane Pt(II)-Complexes: Mechanical Bonding for Chemically Robust Luminophores and Stimuli Responsive Behaviour. Chemical Science, 7(11), 1839-1847. https://doi.org/10.1039/c9sc05507j

We report an approach to rotaxanes in which the metal ion of a cyclometallated PtII luminophore is embedded in the space created by the mechanical bond. Our results show that the interlocked ligand environment stabilises a normally labile PtII–triazo... Read More about Rotaxane Pt(II)-Complexes: Mechanical Bonding for Chemically Robust Luminophores and Stimuli Responsive Behaviour.