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Strong hydrogen bonds in the ionic pair (1,3‐diisopropyl‐4,5‐dimethyl‐4‐imidazolin‐2‐yl­idene)ammonium trichloro­(1,3‐diisopropyl‐4,5‐dimethyl‐4‐imidazolin‐2‐ylideneamine)­iron(II)
Authors:Matthias Tamm  Dejan Petrovic  Eberhardt Herdtweck
Abstract:The title compound, (C11H22N3)FeCl3(C11H21N3)], is one of the rare examples where an isolated ionic pair of the type A]n+EMX3]n? (E is any non‐metal, M is any transition metal and X is any halogen) could be structurally characterized. Two short N—H?Cl contacts between the two ammonium H atoms and two of the three Cl atoms of the counter‐anion generate a six‐membered ring. The third Cl atom is involved in a weaker intra­molecular hydrogen bond to the neutral 1,3‐diisopropyl‐4,5‐dimethyl‐4‐imidazolin‐2‐yl­idene­amine ligand.
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