Host-Guest Complexes of C-Ethyl-2-methylresorcinarene and Aromatic N,N'-Dioxides.

ABSTRACT: The C-ethyl-2-methylresorcinarene (1) forms 1:1 in-cavity complexes with aromatic N,N'-dioxides, only if each of the aromatic rings has an N-O group. The structurally different C-shaped 2,2'-bipyridine N,N'-dioxide (2,2'-BiPyNO) and the linear rod-shaped 4,4'-bipyridine N,N'-dioxide (4,4'-BiPyNO) both form 1:1 in-cavity complexes with the host resorcinarene in C_4v crown and C_2v conformations, respectively. In the solid state, the host-guest interactions between the 1,3-bis(4-pyridyl)propane N,N'-dioxide (BiPyPNO) and the host 1 stabilize the unfavorable anti-gauche conformation. Contrary to the N,N'-dioxide guests, the mono-N-oxide guest

SUBMITTER: Puttreddy R 

PROVIDER: S-EPMC5474659 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature