Co-crystallization of a carboxylcalix[5]arene in the presence of n-butylamine afforded the corresponding host–guest carboxylate–butylammonium salt-bridged complex as a result of a proton transfer process assisted by a second non-ionized calixarene molecule. The crystals isolated consist of a supramolecular pseudo-dimer in which a host–guest inclusion complex is connected to a formally neutral receptor molecule – hosting a solvent molecule in the aromatic cavity – via a strong negative charge-assisted H-bond between the carboxyl/carboxylate substituents present at the narrow rim of the two interacting calixarene molecules.
Titolo: | Hydrogen bond-assisted solid-state formation of a salt-bridged calix[5]arene pseudo-dimer | |
Autori: | ||
Data di pubblicazione: | 2014 | |
Rivista: | ||
Abstract: | Co-crystallization of a carboxylcalix[5]arene in the presence of n-butylamine afforded the corresponding host–guest carboxylate–butylammonium salt-bridged complex as a result of a proton transfer process assisted by a second non-ionized calixarene molecule. The crystals isolated consist of a supramolecular pseudo-dimer in which a host–guest inclusion complex is connected to a formally neutral receptor molecule – hosting a solvent molecule in the aromatic cavity – via a strong negative charge-assisted H-bond between the carboxyl/carboxylate substituents present at the narrow rim of the two interacting calixarene molecules. | |
Handle: | http://hdl.handle.net/11368/2808932 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1039/c3ce41667d | |
Appare nelle tipologie: | 1.1 Articolo in Rivista |