Preparation and characterization of a new type of symmetrical dicyclopentyl substituted cucurbit[6]uril

Abstract

A symmetrical dicyclopentyl substituted cucurbit[6]uril (CyP2Q[6]) was synthesized, and crystallized under the conditions of 3 mol/L hydrochloric acid solution and the induction of ZnCl2. The crystal structure was characterized by X-ray single crystal diffractometer, 1H NMR and MS, and the results show that the crystal belongs to the monoclinic crystal system with P21/n space group, a = 13.095 (2), b = 33.002 (6), c = 15.770 (3), α = 90°, β = 102.828(5)°, γ = 90°, Z = 4, and a macroporous honeycomb structure appears in the crystal.

Supramolecular Self‐Assembled Structure of Symmetrical Dicyclopentyl Substituted Cucurbit[6]uril with Calcium and Erbium Ions

“…Hydrochloric acid solution, zinc chloride, calcium chloride, erbium nitrate, symmetrical dicyclopentyl substituted cucurbit [6]uril were used. [51] 1.2. Instrument X-ray powder diffractometer was used.…”

Supramolecular Self‐Assembly Modes of Cyclopentanocucurbit[6]uril and Aromatic Amines

“…In addition, its unique electrically neutral rigid molecular cavity has very important application prospects in the fields of drug carriers, molecular catalysis and others [12–14] . However, the solubility of ordinary Q[n] greatly limits its application and in order to change this, many scholars have constructed modified Q[n]s bearing many different substituents on the urea unit as breakthrough studies [15–20] . Due to the superconjugate effect of the outer‐surface group, cyclopentanocucurbit[n]uril [21] increases the electron cloud density of the portal and improves the solubility in water and common organic solvents, making it easier to interact with guest molecules, which has great advantages over ordinary cucurbit[n]uril.…”