Current methodology provides ready access to the bowl-shaped calix[n]a
renes. Further chemical manipulation of these unique molecular structu
res provided a means to modifying their basic skeleton. These molecule
s were found to be extremely useful in host-guest chemistry due to the
ir propensity to complex the ions and/or neutral molecules inside thei
r cavities. They are thus ideal building blocks for the construction o
f various types of more sophisticated host molecules, sensors, and lar
ger molecular systems with well-predefined structures. Some recent adv
ances made in this field concerning the usage of calix[n]arenes in sup
ramolecular chemistry are summarized in this review.