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Aggregation Behavior of a Six‐Membered Cyclic Frustrated Phosphane/Borane Lewis Pair: Formation of a Supramolecular Cyclooctameric Macrocyclic Ring System
Author(s) -
Jie Xiaoming,
Daniliuc Constantin G.,
Knitsch Robert,
Hansen Michael Ryan,
Eckert Hellmut,
Ehlert Sebastian,
Grimme Stefan,
Kehr Gerald,
Erker Gerhard
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201811873
Subject(s) - frustrated lewis pair , borane , supramolecular chemistry , cycloaddition , chemistry , adduct , monomer , ring (chemistry) , lewis acids and bases , reagent , electron pair , polymer chemistry , crystallography , crystal structure , organic chemistry , catalysis , polymer , physics , quantum mechanics , electron
A new six‐membered cyclic frustrated phosphane/borane Lewis pair was liberated from its HB(C 6 F 5 ) 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.