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Organoruthenium Complexes Containing Phosphinodicarboxamide Ligands (2023)
Journal Article
Nolla-Saltiel, R., Geer, A. M., Sharpe, H. R., Huke, C. D., Taylor, L. J., Linford-Wood, T. G., …Kays, D. L. (2023). Organoruthenium Complexes Containing Phosphinodicarboxamide Ligands. Inorganics, 11(9), Article 372. https://doi.org/10.3390/inorganics11090372

Ruthenium complexes of phosphinocarboxamide ligands, and their use to form metallacycles using halide abstraction/deprotonation reactions are reported. Thus, [Ru(p-cym){PPh2C(=O)NHR}Cl2; R = iPr (1), Ph (2), p-tol (3)] and [Ru(p-cym){PPh2C(=O)N(R)C(=... Read More about Organoruthenium Complexes Containing Phosphinodicarboxamide Ligands.

Homotropic Cooperativity in Iron-Catalyzed Alkyne Cyclotrimerizations (2023)
Journal Article
Geer, A. M., Navarro, J., Alamán-Valtierra, P., Coles, N. T., Kays, D. L., & Tejel, C. (2023). Homotropic Cooperativity in Iron-Catalyzed Alkyne Cyclotrimerizations. ACS Catalysis, 13, 6610-6618. https://doi.org/10.1021/acscatal.3c00764

Enhancing catalytic activity through synergic effects is a current challenge in homogeneous catalysis. In addition to the well-established metal-metal and metal-ligand cooperation, we showcase here an example of self-activation by the substrate in co... Read More about Homotropic Cooperativity in Iron-Catalyzed Alkyne Cyclotrimerizations.

The anticancer and EGFR-TK/CDK-9 dual inhibitory potentials of new synthetic pyranopyrazole and pyrazolone derivatives: X-ray crystallography, in vitro, and in silico mechanistic investigations (2023)
Journal Article
Musa, A., Ihmaid, S. K., Hughes, D. L., Said, M. A., Abulkhair, H. S., El-Ghorab, A. H., …El-Agrody, A. M. (2023). The anticancer and EGFR-TK/CDK-9 dual inhibitory potentials of new synthetic pyranopyrazole and pyrazolone derivatives: X-ray crystallography, in vitro, and in silico mechanistic investigations. Journal of Biomolecular Structure and Dynamics, https://doi.org/10.1080/07391102.2023.2167000

Treatment options for the management of breast cancer are still inadequate. This inadequacy is attributed to the lack of effective targeted medications, often resulting in the recurrence of metastatic disorders. Cumulative evidence suggests that epid... Read More about The anticancer and EGFR-TK/CDK-9 dual inhibitory potentials of new synthetic pyranopyrazole and pyrazolone derivatives: X-ray crystallography, in vitro, and in silico mechanistic investigations.

Slow magnetic relaxation in Fe(ii) m-terphenyl complexes (2022)
Journal Article
Valentine, A. J., Geer, A. M., Blundell, T. J., Tovey, W., Cliffe, M. J., Davies, E. S., …Kays, D. L. (2022). Slow magnetic relaxation in Fe(ii) m-terphenyl complexes. Dalton Transactions, 51(47), 18118-18126. https://doi.org/10.1039/d2dt03531f

Two-coordinate transition metal complexes are exciting candidates for single-molecule magnets (SMMs) because their highly axial coordination environments lead to sizeable magnetic anisotropy. We report a series of five structurally related two-coordi... Read More about Slow magnetic relaxation in Fe(ii) m-terphenyl complexes.

Structural and Electronic Studies of Substituted m-Terphenyl Group 12 Complexes (2022)
Journal Article
Valentine, A. J., Taylor, L. J., Geer, A. M., Huke, C. D., Wood, K. E., Tovey, W., …Kays, D. L. (2022). Structural and Electronic Studies of Substituted m-Terphenyl Group 12 Complexes. Organometallics, 41(11), 1426-1433. https://doi.org/10.1021/acs.organomet.2c00156

The effects of para-substitution on the structural and electronic properties of four series of two-coordinate m-terphenyl Group 12 complexes (R-Ar#)2M (M = Zn, Cd, Hg; R = t-Bu 1-3, SiMe34-6, Cl 7-9, CF310-12, where R-Ar#= 2,6-{2,6-Xyl}2-4-R-C6H2and... Read More about Structural and Electronic Studies of Substituted m-Terphenyl Group 12 Complexes.

Catalyst-free Hydrophosphinylation of Isocyanates and Isothiocyanates under Low-Added-Solvent Conditions (2021)
Journal Article
Huke, C. D., Taylor, L. J., Argent, S. P., & Kays, D. L. (2021). Catalyst-free Hydrophosphinylation of Isocyanates and Isothiocyanates under Low-Added-Solvent Conditions. ACS Sustainable Chemistry and Engineering, 9(32), 10704-10709. https://doi.org/10.1021/acssuschemeng.1c02907

A catalyst-free, low-solvent method for the hydrophosphinylation of isocyanates and isothiocyanates is reported. A range of phosphorus nucleophiles including secondary phosphine oxides HP(O)R2 (R = Ph, iPr), phosphites HP(O)(OR)2 (R = Me, Et), and me... Read More about Catalyst-free Hydrophosphinylation of Isocyanates and Isothiocyanates under Low-Added-Solvent Conditions.

Group 11 m-Terphenyl Complexes Featuring Metallophilic Interactions (2021)
Journal Article
Liu, Y., Taylor, L. J., Argent, S. P., McMaster, J., & Kays, D. L. (2021). Group 11 m-Terphenyl Complexes Featuring Metallophilic Interactions. Inorganic Chemistry, 60(14), 10114-10123. https://doi.org/10.1021/acs.inorgchem.0c03623

A series of group 11 m-terphenyl complexes have been synthesized via a metathesis reaction from the iron(II) complexes (2,6-Mes2C6H3)2Fe and (2,6-Xyl2C6H3)2Fe (Mes = 2,4,6-Me3C6H2; Xyl = 2,6-Me2C6H3). [2,6-Mes2C6H3M]2 (1, M = Cu; 2, M = Ag; 6, M = Au... Read More about Group 11 m-Terphenyl Complexes Featuring Metallophilic Interactions.

Structural and electronic studies of substituted m-terphenyl lithium complexes (2020)
Journal Article
Valentine, A. J., Geer, A. M., Taylor, L. J., Teale, A. M., Wood, K. E., Williams, H. E. L., …Kays, D. L. (2021). Structural and electronic studies of substituted m-terphenyl lithium complexes. Dalton Transactions, 50(2), 722-728. https://doi.org/10.1039/d0dt03972a

The effect of para-substitution upon the structural and electronic properties of a series of m-terphenyl lithium complexes [R-Ar#-Li]2 (R = t-Bu 1, SiMe32, H 3, Cl 4, CF35; where R-Ar# = 2,6-{2,6-Xyl}2-4-R-C6H2 and 2,6-Xyl = 2,6-Me2C6H3) has been inv... Read More about Structural and electronic studies of substituted m-terphenyl lithium complexes.

A transition metal–gallium cluster formed via insertion of “GaI” (2020)
Journal Article
Blundell, T. J., Taylor, L. J., Valentine, A. J., Lewis, W., Blake, A. J., McMaster, J., & Kays, D. L. (2020). A transition metal–gallium cluster formed via insertion of “GaI”. Chemical Communications, 56(58), 8139-8142. https://doi.org/10.1039/d0cc03559a

The reaction between a two-coordinate Co(II) diaryl complex and “GaI” affords 2,6-Pmp2C6H3CoGa3I5, in a new geometry for a heavier group 13-transition metal cluster. Experimental and computational investigations show that this compound is best descri... Read More about A transition metal–gallium cluster formed via insertion of “GaI”.

Influence of molecular design on radical spin multiplicity: characterisation of BODIPY dyad and triad radical anions (2020)
Journal Article
Mangham, B., Hanson-Heine, M. W. D., Davies, E. S., Wriglesworth, A., George, M. W., Lewis, W., …Champness, N. R. (2020). Influence of molecular design on radical spin multiplicity: characterisation of BODIPY dyad and triad radical anions. Physical Chemistry Chemical Physics, 22(8), 4429-4438. https://doi.org/10.1039/c9cp06427c

This journal is © the Owner Societies. A strategy to create organic molecules with high degrees of radical spin multiplicity is reported in which molecular design is correlated with the behaviour of radical anions in a series of BODIPY dyads. Upon re... Read More about Influence of molecular design on radical spin multiplicity: characterisation of BODIPY dyad and triad radical anions.

Corrigendum: A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies (2020)
Journal Article
Ried, A. C. A., Taylor, L. J., Geer, A. M., Williams, H. E. L., Lewis, W., Blake, A. J., & Kays, D. L. (2020). Corrigendum: A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies. Chemistry - A European Journal, 26(7), 1692-1692. https://doi.org/10.1002/chem.202000050

In the published paper, we described the attempted synthesis of Me2NH⋅BD3, according to the method published by Webster et al., which in our hands afforded a mixture of Me2NH⋅BH3 and Me2NH⋅BD3. We would like to clarify that in the paper Webster et al... Read More about Corrigendum: A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies.

Iron(II)-catalyzed hydroamination of isocyanates (2019)
Journal Article
South, A. J., Geer, A. M., Taylor, L. J., Sharpe, H. R., Lewis, W., Blake, A. J., & Kays, D. L. (2019). Iron(II)-catalyzed hydroamination of isocyanates. Organometallics, 38(21), 4115-4120. https://doi.org/10.1021/acs.organomet.9b00393

A two-coordinate Fe(II) m-terphenyl complex acts as a precatalyst for the hydroamination of isocyanates, affording urea and biuret derivatives, with product selectivity accomplished via modification of the reaction conditions. Using a more nucleophil... Read More about Iron(II)-catalyzed hydroamination of isocyanates.

Low-coordinate first-row transition metal complexes in catalysis and small molecule activation (2019)
Journal Article
Taylor, L. J., & Kays, D. L. (2019). Low-coordinate first-row transition metal complexes in catalysis and small molecule activation. Dalton Transactions, 48(33), 12365-12381. https://doi.org/10.1039/C9DT02402F

Enforcing unusually low coordination numbers on transition metals with sterically demanding ligands has long been an area of interest for chemists. Historically, the synthesis of these challenging molecules has helped to elucidate fundamental princip... Read More about Low-coordinate first-row transition metal complexes in catalysis and small molecule activation.

A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies (2019)
Journal Article
Ried, A., Taylor, L., Geer, A., Williams, H., Lewis, W., Blake, A., & Kays, D. L. (2019). A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies. Chemistry - A European Journal, 25(27), 6840-6846. https://doi.org/10.1002/chem.201901197

A magnesium complex (1) featuring a bidentate aminopyridinato ligand is a remarkably selective catalyst for the dehydrocoupling of amine-boranes. This reaction proceeds to completion with low catalyst loadings (1 mol%) und... Read More about A Highly Active Bidentate Magnesium Catalyst for Amine‐Borane Dehydrocoupling: Kinetic and Mechanistic Studies.

Selective reduction and homologation of carbon monoxide by organometallic iron complexes (2018)
Journal Article
Sharpe, H. R., Geer, A. M., Taylor, L. J., Gridley, B. M., Blundell, T. J., Blake, A. J., …Kays, D. L. (2018). Selective reduction and homologation of carbon monoxide by organometallic iron complexes. Nature Communications, 9, Article 3757. https://doi.org/10.1038/s41467-018-06242-w

Carbon monoxide is a key C1 feedstock for the industrial production of hydrocarbons, where it is used to make millions of tonnes of chemicals, fuels, and solvents per annum. Many transition metal complexes can coordinate CO2 but the formation of new... Read More about Selective reduction and homologation of carbon monoxide by organometallic iron complexes.

Dehydrogenation of dimethylamine-borane mediated by Group 1 pincer complexes (2018)
Journal Article
Nolla-Saltiel, R., Geer, A. M., Lewis, W., Blake, A. J., & Kays, D. L. (2018). Dehydrogenation of dimethylamine-borane mediated by Group 1 pincer complexes. Chemical Communications, 54(15), https://doi.org/10.1039/c7cc08385h

Group 1 salts containing carbazolido NNN pincer ligands are precatalysts for the dehydrogenation of Me2NH·BH3. NMR monitoring and DOSY studies show a heavy dependence on the metal and solvent, allowing in some cases selective formation of dehydrogena... Read More about Dehydrogenation of dimethylamine-borane mediated by Group 1 pincer complexes.

Dehydrocoupling of dimethylamine-borane promoted by manganese(II) m-terphenyl complexes (2017)
Journal Article
Sharpe, H. R., Geer, A. M., Blundell, T. J., Hastings, F. R., Fay, M. W., Rance, G. A., …Kays, D. L. (in press). Dehydrocoupling of dimethylamine-borane promoted by manganese(II) m-terphenyl complexes. Catalysis Science and Technology, 8(1), https://doi.org/10.1039/C7CY02086D

Two- and three-coordinate manganese m-terphenyl complexes are precatalysts for the dehydrogenation of dimethylamine-borane (Me2NH·BH3) affording one equivalent of molecular hydrogen and half an equivalent of [Me2N–BH2]2. Experimental studies into the... Read More about Dehydrocoupling of dimethylamine-borane promoted by manganese(II) m-terphenyl complexes.

Iron(II)-Catalyzed Hydrophosphination of Isocyanates (2017)
Journal Article
Sharpe, H. R., Geer, A. M., Lewis, W., Blake, A. J., & Kays, D. L. (2017). Iron(II)-Catalyzed Hydrophosphination of Isocyanates. Angewandte Chemie International Edition, 56(17), 4845-4848. https://doi.org/10.1002/anie.201701051

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The first transition metal catalyzed hydrophosphination of isocyanates is presented. The use of low-coordinate iron(II) precatalysts leads to an unprecedented catalytic double insertion of isocyanat... Read More about Iron(II)-Catalyzed Hydrophosphination of Isocyanates.

1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions (2017)
Journal Article
Birchall, C., Bradley, M. A., Blake, A. J., Lewis, W., Moxey, G. J., & Kays, D. L. (2017). 1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions. Dalton Transactions, 46(12), 4101-4110. https://doi.org/10.1039/c7dt00471k

© The Royal Society of Chemistry. The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C10H6... Read More about 1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions.