Deprotonation of large calixarenes-cation binding and conformations
MetadataShow full item record
© 2016 CSIRO. Single crystal X-ray studies of p-t-butylcalixarene·2dmso·7H2O (1) and [NMe4][p-t-butylcalixarene-H]·2dmso·H2O (2), provide new data on these large macrocycles and their conformations, that of 2 being the first where an encapsulated [NMe4]+ cation is present, while 1 contains the neutral ligand. Both were obtained as crystalline products of the reactions of the calixarenes with tetramethylammonium hydroxide after prolonged standing. The structure of [NEt4][calixarene-H], in which the cation approaches inclusion in the shallow cone of the anion, is also defined and compared with various other alkylammonium derivatives of calixarenes as well as that of p-t-butylcalixarene.
Showing items related by title, author, creator and subject.
Goh, Ching Yong (2012)A selection of amino acid functionalised calixarenes was studied. Acidic amino acid functionalised calixarenes were investigated as crystal growth modifiers. The self-assembly behaviour of proline functionalised ...
Fleming, Sean; Gutsche, C.; Harrowfield, J.; Ogden, Mark; Skelton, B.; Stewart, D.; White, A. (2003)Synthetic and structural studies of europium complexes of calixarene, p-t-Bu-calixarene and p-t-Bu-calix-arene are reported. The complex [Eu2(calixarene-6H)(dmso)5] was found to have a similar structure ...
Chester, Ryan; De Marco, Roland; Mocerino, Mauro; Ogden, Mark; Skelton, B.; White, A. (2009)The tetra-iso-propyl ethers of calixarene and p-t-butylcalixarene have been isolated in the cone conformation, and structurally characterized as chloroform solvates. Thermogravimetric analysis demonstrated that the ...