a-CC agostic structures and aggregation diversity in cyclopropyllithium derivatives

Quentin Dufrois (1, 2) , Laure Vendier (1) , Michel Etienne (3, 2)

1 LCC - Laboratoire de chimie de coordination
2 UT3 - Université Toulouse III - Paul Sabatier
3 LTD - Laboratoire de théorie du droit

In the presence of thf or tmeda and depending on experimental conditions, 1-phenylcyclopropyllithium may be crystallised as either dinuclear or tetranuclear species both exhibiting [small alpha]-CC agostic distortions towards tricoordinate lithium cations. In thf solution, deaggregation of the dinuclear complex takes place to yield a well-defined mononuclear species [Li(thf)3(c-CPhC2H4)].

Domaines: Chimie de coordination

Quentin Dufrois, Laure Vendier, Michel Etienne. a-CC agostic structures and aggregation diversity in cyclopropyllithium derivatives. Chemical Communications, 2016, 52 (41), pp.6781-6784. ⟨10.1039/C6CC02638A⟩. ⟨hal-01929126⟩