Gessner Viktoria H, Däschlein Christian, Strohmann Carsten
Anorganische Chemie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany.
Acta Crystallogr Sect E Struct Rep Online. 2009 Jan 23;65(Pt 2):o383. doi: 10.1107/S1600536809002414.
The title compound, C(19)H(27)N(2)O(+)·Br(-), is the hydro-bromide of the trapping product of lithia-ted N,N,N',N'-tetramethylethylenediamine (TMEDA) with benzophenone. Thereby, the N atom of the NMe(2) group is selectively protonated and the respective trapping product represents a potential tridentate ligand with one O and two N donor atoms. The H atoms at N (H2N) and O (H1O) are involved in hydrogen bonds with the Br(-). The mol-ecular structure shows all donor atoms to be arranged on one side of the mol-ecule, thus indicating a potential threefold coordination of a Lewis acid.
标题化合物C(19)H(27)N(2)O(+)·Br(-)是锂化的N,N,N',N'-四甲基乙二胺（TMEDA）与二苯甲酮捕获产物的氢溴酸盐。由此，NMe₂基团的N原子被选择性质子化，相应的捕获产物代表一种具有一个O和两个N供体原子的潜在三齿配体。N（H2N）和O（H1O）上的H原子参与与Br(-)的氢键形成。分子结构表明所有供体原子都排列在分子的一侧，因此表明路易斯酸具有潜在的三重配位。
