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1. Rheinisch Westfälische Technische Hochschule Aachen, Germany
2. Institute of Inorganic Chemistry, Rheinisch Westfälische Technische Hochschule Aachen, Germany
1H NMR (400 MHz, CDCl3, ppm) δ = 3.76 (m, 4H, THF), 3.76–3.73 (m, 4H, CHaliph, c), 3.70–3.16 (m, 16H, CH2, g-h), 3.00–2.75 (m, 24H, CH3, e,f), 2.29–2.15 (m, 4H, CH2,aliph, b), 1.85 (m, 4H, THF), 1.78–1.67 (m, 4H, CH2,aliph,, a), 1.46–1.26 (m, 4H, CH2,aliph, a’), 1.06–0.97 (m, 4H, CH2,aliph, b’).
13C NMR (100 MHz, CDCl3, ppm) δ = 165.9 (4C, Cgua, d), 68.1 (4C, CHaliph. , c), 68.0 (2C, THF), 50.6/48.7 (8C, CH2, g-h), 36.6/36.4 (8C, CH3, e/f), 31.9 (4C, CH2,aliph, b/b’), 25.6 (2C, THF), 24.8/24.7 (4C, CH2,aliph, a/a’). Not all 13C signals could be detected and signals of the triflat ions (2C) are missing.
Assignment of atoms to the labels used in the analysis