64325-47-9Relevant academic research and scientific papers
Molecular Complex Formation between Bridgehead Amines and Quinones
Campbell, Michel J. M.,Demetriou, Basil,Jones, Ronald
, p. 917 - 922 (2007/10/02)
Formation of 1:1 complexes occurs between the bridgehead amines triethylenediamine, quinuclidine, and quinuclidin-3-ol and 1,4-quinones.Values of the equilibrium constant (Kc1), molar absorptivity (ε1), standard enthalpy, and entropy changes were obtained from optical data for the stronger complexes whilst only the product Kc1ε1 could be determined for the weaker complexes.Formation of 2:1 complexes was observed for solutions containing chloranil and an excess of triethylenediamine.CNDO/2 calculations show that complex formation should occur at four equivalent positions corresponding to the mid-point between C(1) and C(2).The non-bridgehead amines piperidine and triethylamine do not form complexes in solution under the same coditions.
