Zobrazeno 1 - 10 of 174 pro vyhledávání: '"Frank E Mabbs"'
1
A crystallographic, EPR and theoretical study of the Jahn–Teller distortion in [CuTp2] (Tp−= tris{pyrazol-1-yl}hydridoborate)
Autor: Michael A. Leech, Frank E. Mabbs, Adam J. Bridgeman, David Collison, Judith A. K. Howard, Eric J. L. McInnes, Godfrey S. Beddard, Colin A. Kilner, Malcolm A. Halcrow
Publikováno v: Dalton Trans.. :236-243
Crystals of the title compound (1) contain two independent, centrosymmetric half-molecules per asymmetric unit. While both of these show Jahn-Teller elongated six-coordinate geometries, the lengths of the elongated Cu-N bonds in the two molecules dif
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4afbe13e21603f14387e9449cc60055
https://doi.org/10.1039/b312426f
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2
Detection and Measurement of Noncoincidence between the Principal Axes of the g-Matrix and Zero-Field Splitting Tensor Using Multifrequency Powder EPR Spectroscopy: Application to cis-[(NH3)2Pt(1-MeU)2Cu(H2O)2](SO4)·4.5H2O (1-MeU = Monoanion of 1-Methyluracil)
Autor: Eric J. L. McInnes, Michael A. Hitchman, David M. L. Goodgame, David Collison, Frank E. Mabbs, Bernhard Lippert
Publikováno v: Inorganic Chemistry. 41:2826-2833
Multifrequency continuous wave EPR spectra (4-34 GHz) on a powder of the title compound are consistent with a spin-triplet state. This arises from interaction between centrosymmetrically related pairs of copper(II) ions in the solid. The spectra at a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8950475a074f3ac6646fa49ac91c3de9
https://doi.org/10.1021/ic011283e
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3
A crystallographic and EPR study of the fluxional Cu(ii) ion in [CuL2][BF4]2 (L = 2,6-dipyrazol-1-ylpyridine)
Autor: Colin A. Kilner, Eric J. L. McInnes, Nayan K. Solanki, Malcolm A. Halcrow, Judith A. K. Howard, Michael A. Leech, Frank E. Mabbs, Jeremy M. Rawson
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :1295-1301
This paper reports a crystallographic and EPR study of pseudo-Jahn–Teller fluxionality in [Cu(L1)2][BF4]2 (1; L1 = 2,6-dipyrazol-1-ylpyridine). For 50 ≤ T ≤ 350 K, the Cu(II) ion in crystalline 1 is fluxional, with its axis of pseudo-Jahn–Tel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a2924ce7b072c037798c99112d31393
https://doi.org/10.1039/b109201b
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4
New molybdenum(v) analogues of Amavadin and their redox properties
Autor: Roy L. Beddoes, Annie K. Powell, Eric J. L. McInnes, David Collison, Spencer M. Harben, Paul D. Smith, J. Jon A. Cooney, Frank E. Mabbs, C. David Garner, Alexander Mandel, Madeleine Helliwell
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :3108-3114
Reactions of [MoO2(acetylacetonate)2] with the proligands (N-hydroxyimino)diacetic acid (H3hidpa), R,R-2,2′-(N-hydroxyimino)dipropionic acid (R,R-H3hidpa) or R,S-2,2′-(N-hydroxyimino)dibutyric acid (R,S-H3hidba) yielded the compounds [PPh4][Δ,Λ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82088e3813a3bce67ea293bea4fe90e2
https://doi.org/10.1039/b102531g
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5
Syntheses, Crystal Structures, Magnetic Properties, and EPR Spectra of Tetranuclear Copper(II) Complexes Featuring Pairs of 'Roof-Shaped' Cu2X2 Dimers with Hydroxide, Methoxide, and Azide Bridges
Autor: Christopher M. Kepert, Milton T.W. Hearn, Boujemaa Moubaraki, Leone Spiccia, Keith S. Murray, Bim Graham, Frank E Mabbs, Peter C. Junk
Publikováno v: Inorganic Chemistry. 40:1536-1543
Hydroxo- and methoxo-bridged tetranuclear copper(II) complexes of the tetramacrocyclic ligand 1,2,4,5-tetrakis(1,4,7-triazacyclonon-1-ylmethyl)benzene (Ldur), have been prepared from [Cu4Ldur(H2O)8](ClO4)8.9H2O (1). Addition of base to an aqueous sol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ae19a3ba22b84f903668bb5d1e774d
https://doi.org/10.1021/ic000991h
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6
New superconducting charge-transfer salts (BEDT-TTF)4[A·M(C2O4)3]·C6H5NO2 (A = H3O or NH4, M = Cr or Fe, BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene)
Autor: Peter Day, Scott S. Turner, Steven Firth, Judith A. K. Howard, Samina Rashid, Robin J. H. Clark, Frank E. Mabbs, Tim Biggs, Eric J. L. McInnes, Philippe Guionneau
Publikováno v: Journal of Materials Chemistry. 11:2095-2101
The syntheses, crystal structures, and physical properties of two new crystalline charge-transfer salts of BEDT-TTF, bis(ethylenedithio)tetrathiafulvalene, containing tris(oxalato)metallate(III) anions of 3d elements are reported. Electrochemical oxi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee0881e4f2fc28413827ecf033e1de74
https://doi.org/10.1039/b101134k
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7
The effects of distal ligand substitution on the copper(II)/bis-(2,6-dipyrazol-1-ylpyridine) centre†
Autor: Jeremy M. Rawson, Frank E. Mabbs, Nayan K. Solanki, John E. Davies, Malcolm A. Halcrow, Neil Feeder, Michael A. Leech, Eric J. L. McInnes, Jing P. Zhao, Judith A. K. Howard
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :2083-2088
The complex [Cu(L4)2](BF4)2 (3; L4 = 2-[pyrazol-1-yl]-6-[3-{2,4,6-trimethylphenyl}pyrazol-1-yl]pyridine) has been synthesised. Complex 3 crystallises in two crystal forms from MeNO2/Et2O. The monoclinic α-form contains crystallographically ordered,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1680296b28300b658a0f87560342396
https://doi.org/10.1039/b103142m
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9
Synthesis, redox chemistry and EPR spectroscopy of the mixed-sandwich complexes (η-arene)(η-cycloheptatrienyl)metal(z+) (M = Cr or Mo; z = 1 or 2): crystal structures of the redox pair [Cr(η-C6H5Me)(η-C7H6C6H4Me-4)][PF6]n (n = 1 or 2)
Autor: Mark W. Whiteley, M. Fahad Sarwar, Frank E. Mabbs, Mark S. Elwell, Eric J. L. McInnes, Andrew D. Roberts, Roy L. Beddoes
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :4669-4676
The mixed sandwich complexes [M(η-arene)(η-C7H6R′)]+ (M = Cr, R′ = H, arene = C6H4Me2-1,4, 1a; or C6H3Me3-1,3,5, 2a; R′ = C6H4Me-4, arene = C6H5Me, 3a; M = Mo, R′ = H, arene = C6H3Me3-1,3,5, 4a) were prepared by reflux of [M(CO)3(η-C7H6R
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5aa4635281eaf8ac16af5191d9637f6e
https://doi.org/10.1039/b007830l
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10
Copper complexes of 2,6-bis(iminomethyl)pyridine derivatives and of 1,3-bis(pyridin-2-yl)pyrazole. Effects of ligand bulk and conformational strain on the ground state of a six-co-ordinate copper(II) ion
Autor: Frank E. Mabbs, Malcolm A. Halcrow, Joanne M. Holland, Jing P. Zhao, Colin A. Kilner, Mark Thornton-Pett, Xiaoming Liu
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :3316-3324
Complexation of hydrated Cu(BF4)2 by 2 molar equivalents of L2R (L2Me = 2,6-bis{methyliminomethyl}pyridine, L2Cy = 2,6-bis{cyclohexyliminomethyl}pyridine, L2But = 2,6-bis{tert-butyliminomethyl}pyridine) afforded [Cu(L2R)2][BF4]2 (R = Me, 1; Cy, 2; or
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a809b6171784fc22306ab0ab9d4cdf44
https://doi.org/10.1039/b005105p
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