Effective Stabilization of cis-Isomer of Styryl Dye inside the Cucurbit[7]uril Cavity

Cucurbiturils: from synthesis to high-affinity binding and catalysis

“…The factors which govern their molecular recognition and high-affinity binding properties are continuously unfolding, such that we also update information pertinent in this fundamental area. [8][9][10][11] Biochemical and medicinal-chemical aspects are excluded from this review, as are applications in chemosensing, [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] which in part have been recently reviewed elsewhere. 49…”

Conjugated compounds in supramolecular informational systems: A review

“…The features of optical characteristics of two dimensional assemblies are in many respects deter mined by the nature of their aggregation behavior on the interface. As is known, packing of the dye mole cules into an organized two dimensional film can sig nificantly modulate the pathways of relaxation of their excited state, since the limitation of the degree of free dom of the molecule can significantly affect the for mation of the excited state of the dye and prioritized direction of its relaxation [214]. For example, the pos sibility of initiation of a photoisomerization reaction of crown substituted styryl dye due to a decrease in chro mophore molecule mobility upon their "confinement" in the cavity of cucurbit [7]uril with formation of "hostguest" complexes was demonstrated in [214].…”

“…Allowed optical transitions are shown by red arrows, and forbidden transitions are indicated by black lines. The lower part of the scheme shows two dimensional arrays of transition dipoles, which may be characteristic for H aggregates and J aggregates[214].…”