Construction Of Chain-Link Hydrogen Bonded Capsules On Self-Assembly Of C-Methylcalix (4) Resorcinarene With Bispyrimid Ligands
Date of Graduation
Master of Science in Chemistry
In the recent years the formation of nanocapsules that totally encapsulate guest compounds has attracted wide interest. In this work we demonstrate the formation of three-dimensional hydrogen bonded networks formed on self-assembly of tetradentate bis-pyrimidyl ligands with C-methylcalixresorcinarene under a variety of different conditions. The single crystal X-ray crystallographic analysis revealed the formation of three different structural motifs. Two of the structures contain pairs of bowl-shaped resorcinarenes bridged by bis-pyrimidyl ligands in the formation of "chain-link" capsules capable of incorporating small guest molecules. The third structural motif has a bowl shaped resorcinarenes stacked in columns cross-linked by bridging bis-pyrimidyl ligands and water molecules. In this structure capsules are not formed.
© Ivan G. Georgiev
Georgiev, Ivan G., "Construction Of Chain-Link Hydrogen Bonded Capsules On Self-Assembly Of C-Methylcalix (4) Resorcinarene With Bispyrimid Ligands" (2003). MSU Graduate Theses. 1866.