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A triamido-uranium(V) inverse-sandwich 10π-toluene tetraanion arene complex

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S1 - Supplementary Information - A Triamido-Uranium(V) Inverse-Sandwich 10π-Toluene Tetraanion Arene Complex Dipti Patel, a Floriana Tuna, b Eric J. L. McInnes, b Jonathan McMaster, a William Lewis, a Alexander J. Blake, a and Stephen T. Liddle* a a School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK. Fax: +44 115 951 3563; Tel:+44 115 846 7167; b EPSRC National UK EPR Facility, School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK. E-mail: [email protected] Experimental General All manipulations were carried out using standard Schlenk techniques, or an MBraun UniLab glovebox, under an atmosphere of dry nitrogen. Solvents were dried by passage through activated alumina towers and degassed before use. All solvents were stored over potassium mirrors except for ethers which were stored over activated 4 Å sieves. Deuterated solvent was distilled from potassium, degassed by three freeze-pump-thaw cycles and stored under nitrogen. [U(Ts Tol )(Cl)(THF)] (2, Ts Tol = HC(SiMe2NAr')3; Ar' = 4-MeC6H4), and KC8 were synthesised according to published procedures. [1,2] Electronic Supplementary Material (ESI) for Dalton Transactions This journal is © The Royal Society of Chemistry 2013 S2 1 H NMR spectra were recorded on a Bruker 300 spectrometer operating at 300.13 MHz; chemical shifts are quoted in ppm and are relative to TMS. FTIR spectra were recorded on a Bruker Tensor 27 spectrometer. UV/Vis/NIR spectra were recorded on a Perkin Elmer Lambda 750 spectrometer. Data were collected in 1mm path length cuvettes loaded in an MBraun UniLab glovebox and were run verses the appropriate toluene reference solvent. Variable-temperature magnetic moment data were recorded in an applied dc field of 0.1 T on a Quantum Design MPMS XL5 SQUID magnetometer using doubly

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