Rebek Imide Platforms as Model Systems for the Investigation of Weak Intermolecular Interactions
作者:Michael Harder、Marjorie A. Carnero Corrales、Nils Trapp、Bernd Kuhn、François Diederich
DOI:10.1002/chem.201500462
日期:2015.6.1
A Rebekimide receptor with an acetylene‐linked phenyl ring complexes 2,6‐di(isobutyramido)pyridine in (CDCl2)2 via triple H‐bonding and π–π‐stacking interactions, and the influence of para‐substituents on both rings was investigated by 1H NMR binding titrations. When the phenyl ring was extended to biphenyl and the C(4)‐pyridine substituent varied, interaction energies increased in the order CH3CH2⋅⋅⋅phenyl
Rebek酰亚胺受体与乙炔连接的苯环配合物,通过三重H键和π-π堆积相互作用形成(CDCl 2)2中的2,6-二(异丁酰胺基)吡啶,以及对位取代基对两个环的影响通过1 H NMR结合滴定法进行了研究。当苯环被扩展到联苯和C(4) -吡啶取代基改变时,相互作用能的顺序增加的CH 3 CH 2 ⋅⋅⋅phenyl
Model Systems for Flavoenzyme Activity. Stabilization of the Flavin Radical Anion through Specific Hydrogen Bond Interactions
作者:Eric Breinlinger、Angelika Niemz、Vincent M. Rotello
DOI:10.1021/ja00124a029
日期:1995.5
Substituent Effects in Parallel-Displaced π-π Stacking Interactions: Distance Matters
Host–guest systems with Rebekimide type receptors and a 2,6‐di(isobutyramido)pyridine ligand were employed to investigate substituent effects in parallel‐displaced π–π stacking interactions. Changing the intermolecular distance between the para substituent on the aromatic platform of the receptor and the pyridine ring of the guest results in a strongly different substituent effect. With a short ethyne‐1