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Your search keyword '"McInnes, E. J. L."' showing total 8 results
Start Over Author "McInnes, E. J. L." Publication Type Electronic Resources
8 results on '"McInnes, E. J. L."'

1. The inverse-trans-influence as a general principle of f-block chemistry

Author

Gregson, M., Lu, E., Mills, D. P., Tuna, F., Mcinnes, E. J. L., Hennig, C., Scheinost, A. C., Mcmaster, J., Lewis, W., Blake, A. J., Kerridge, A., Liddle, S. T., Gregson, M., Lu, E., Mills, D. P., Tuna, F., Mcinnes, E. J. L., Hennig, C., Scheinost, A. C., Mcmaster, J., Lewis, W., Blake, A. J., Kerridge, A., and Liddle, S. T.

Abstract

Across the periodic table the trans-influence operates, where tightly-bonded ligands selectively lengthen mutually-trans metal-ligand bonds. Conversely, in high oxidation state actinide complexes the inverse-trans-influence (ITI) operates, where normally cis strongly-donating ligands instead reside trans and actually strengthen each other. However, restricted to high valent actinyls and a few uranium(V/VI) complexes, over decades the ITI has had limited scope in an area with few unifying rules. Here, we report cerium, uranium, and thorium bis(carbene) complexes with trans C=M=C cores where characterization data consistently suggest the presence of an ITI. By applying appropriate metal-ligand-matching, this work now demonstrates the occurrence of the ITI beyond high oxidation state 5f metals extended to encompass mid-range oxidation state actinides and lanthanides. Thus, the ITI emerges as an overarching f-block principle.

Published
2017

2. [MIII2MII3]n+ trigonal bipyramidal cages based on diamagnetic and paramagnetic metalloligands

Author

Sanz, Sergio, O'Connor, Helen M., Marti-Centelles, V., Comar, Priyanka, Pitak, Mateusz B., Coles, Simon J., Lorusso, Giulia, Palacios, E., Evangelisti, Marco, Baldansuren, Amgalanbaatar, Chilton, N. F., Weihe, Høgni, McInnes, E. J. L., Lusby, Paul J., Piligkos, Stergios, Brechin, E. K., Sanz, Sergio, O'Connor, Helen M., Marti-Centelles, V., Comar, Priyanka, Pitak, Mateusz B., Coles, Simon J., Lorusso, Giulia, Palacios, E., Evangelisti, Marco, Baldansuren, Amgalanbaatar, Chilton, N. F., Weihe, Høgni, McInnes, E. J. L., Lusby, Paul J., Piligkos, Stergios, and Brechin, E. K.

Published
2017

3. [MIII2MII3]n+ trigonal bipyramidal cages based on diamagnetic and paramagnetic metalloligands

Author

Sanz, Sergio, O'Connor, Helen M., Marti-Centelles, V., Comar, Priyanka, Pitak, Mateusz B., Coles, Simon J., Lorusso, Giulia, Palacios, E., Evangelisti, Marco, Baldansuren, Amgalanbaatar, Chilton, N. F., Weihe, Høgni, McInnes, E. J. L., Lusby, Paul J., Piligkos, Stergios, Brechin, E. K., Sanz, Sergio, O'Connor, Helen M., Marti-Centelles, V., Comar, Priyanka, Pitak, Mateusz B., Coles, Simon J., Lorusso, Giulia, Palacios, E., Evangelisti, Marco, Baldansuren, Amgalanbaatar, Chilton, N. F., Weihe, Høgni, McInnes, E. J. L., Lusby, Paul J., Piligkos, Stergios, and Brechin, E. K.

Published
2017

4. Emergence of comparable covalency in isostructural cerium(IV)- and uranium(IV)-carbon multiple bonds

Author

Gregson, M., Lu, E., Tuna, F., Mcinnes, E. J. L., Hennig, C., Scheinost, A. C., Mcmaster, J., Lewis, W., Blake, A. J., Kerridge, A., Liddle, S. T., Gregson, M., Lu, E., Tuna, F., Mcinnes, E. J. L., Hennig, C., Scheinost, A. C., Mcmaster, J., Lewis, W., Blake, A. J., Kerridge, A., and Liddle, S. T.

Abstract

The chemical bonding of actinide and transition metal cations is known to exhibit variable levels of covalency, whereas that of the lanthanides is characterised as overwhelmingly ionic like alkali and alkaline earth metals. Here, we report a structural, spectroscopic, magnetic, and computational study of the iso-structural carbene complexes [M(BIPMTMS)(ODipp)2] [M = Ce (1), U (2), Th (3); BIPMTMS = C(PPh2NSiMe3)2; Dipp = C6H3-2,6-Pri 2]. In order to avoid the deficiencies of orbitalbased theoretical treatments we probed the bonding of 1-3 with a RASSCF density-based approach that explicitly treats the orbital energy near-degeneracy and overlap contributions to covalency. For these complexes unexpected similar levels of covalency are found for cerium(IV) and uranium(IV), whereas thorium(IV) is found to be more ionic. This trend is found in all computational methods employed and is reproduced in experimental covalency-driven exchange reactions of 1-3 with MCl4 salts (M = Ce, U, Th).

Published
2016

5. Magnetic anisotropy of polycrystalline magnetoferritin investigated by SQUID and electron magnetic resonance

Author

Moro, F, De Miguel, R, Jenkins, M, Gómez-Moreno, C, Sells, D, Tuna, F, Mcinnes, E, Lostao, A, Luis, F, Van Slageren, J, Moro, F., De Miguel, R., Jenkins, M., Gómez-Moreno, C., Sells, D., Tuna, F., McInnes, E. J. L., Lostao, A., Luis, F., Van Slageren, J., Moro, F, De Miguel, R, Jenkins, M, Gómez-Moreno, C, Sells, D, Tuna, F, Mcinnes, E, Lostao, A, Luis, F, Van Slageren, J, Moro, F., De Miguel, R., Jenkins, M., Gómez-Moreno, C., Sells, D., Tuna, F., McInnes, E. J. L., Lostao, A., Luis, F., and Van Slageren, J.

Abstract

Magnetoferritin molecules with an average inorganic core diameter of 5.7±1.6 nm and polycrystalline internal structure were investigated by a combination of transmission electron microscopy, magnetic susceptibility, magnetization, and electron magnetic resonance (EMR) experiments. The temperature and frequency dependence of the magnetic susceptibility allowed for the determination of the magnetic anisotropy on an experimental time scale which spans from seconds to nanoseconds. In addition, angle-dependent EMR experiments were carried out for the determination of the nanoparticle symmetry and internal magnetic field. Due to the large surface to volume ratio, the nanoparticles show larger and uniaxial rather than cubic magnetic anisotropies compared to bulk maghemite and magnetite. © 2014 Elsevier B.V

Published
2014

6. Varying spin state composition by the choice of capping ligand in a family of molecular chains: detailed analysis of magnetic properties of chromium(III) horseshoes

Author

Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., Winpenny, R. E. P., Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., and Winpenny, R. E. P.

Published
2011

7. Varying spin state composition by the choice of capping ligand in a family of molecular chains: detailed analysis of magnetic properties of chromium(III) horseshoes

Author

Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., Winpenny, R. E. P., Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., and Winpenny, R. E. P.

Published
2011

8. Varying spin state composition by the choice of capping ligand in a family of molecular chains: detailed analysis of magnetic properties of chromium(III) horseshoes

Author

Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., Winpenny, R. E. P., Baker, M. L., Bianchi, A., Carretta, S., Collison, D., Docherty, R. J., McInnes, E. J. L., McRobbie, A., Muryn, C. A., Mutka, H., Piligkos, Stergios, Rancan, M., Santini, P., Timco, G. A., Tregenna-Piggott, P. L. W., Tuna, F., Güdel, H. U., and Winpenny, R. E. P.

Published
2011

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