Aggregation Behavior of a Six‐Membered Cyclic Frustrated Phosphane/Borane Lewis Pair: Formation of a Supramolecular Cyclooctameric Macrocyclic Ring System. Issue 3 (12th December 2018) - Jie, Xiaoming
Abstract: A new six‐membered cyclic frustrated phosphane/borane Lewis pair was liberated from its HB(C6 F5 )2 adduct by treatment with vinylcyclohexane. The system is an active frustrated Lewis pair that undergoes cycloaddition reactions with suitable π reagents and it splits dihydrogen. At room temperature in solution the new compound is a monomer, however, in the crystal and in solution at low temperature it aggregates to a thermodynamically favoured supramolecular macrocyclic cyclooctamer. Abstract : A new frustration : A six‐membered cyclic frustrated phosphane/borane Lewis pair forms a macrocyclic cyclooctameric structure in the crystal and in solution at low temperature. The supramolecular frustrated Lewis pair assembly has an inner diameter of about 12 to 13 Å.