Solution volume studies of a deep cavity inclusion complex of C60: [p-benzylcalix[5]arene ⊂ C60]

Hydrostatic Pressure on Toroidal Interaction and Propeller Chirality of Hexaarylbenzenes: Explicit Solvent Effects on Differential Volumes in Methylcyclohexane and Hexane

“…The pressure dependence has been frequently discussed in terms of the differential volumes (Δ V ) between the states. Relatively large differential volumes have been reported for supramolecular complexations, that is, crown ethers, calixarenes, and cyclodextrins . The Δ V value of +195 cm 3 mol −1 was reported for the calix[5]arene/fullerene complex, where two solvent (toluene) molecules are displaced upon complexation .…”

“…Relatively large differential volumes have been reported for supramolecular complexations, that is, crown ethers, calixarenes, and cyclodextrins . The Δ V value of +195 cm 3 mol −1 was reported for the calix[5]arene/fullerene complex, where two solvent (toluene) molecules are displaced upon complexation . The silver complex of chiral bipyridine ligands also exhibited the large Δ V of −160 cm 3 mol −1 , reflecting the transformation from a tetramer to a hexamer .…”

Ground- and excited-state dynamic control of an anion receptor by hydrostatic pressure

“…[4][5][6] Even apart from such articial molecular machines, the creation of stimulus-responsive supramolecular architectures is a recent great trend for some applications in chemical and apoptosis sensing, [7][8][9][10][11][12] drugdelivery [13][14][15] and switchable memory systems. [16][17][18][19] Hydrostatic pressure, one of the mechanical stimuli, has attracted attention for a long time since the early 1960s, [20][21][22][23][24][25][26][27] since hydrostatic pressurization of object solutions can control not only ground-state thermodynamic equilibria in molecular recognition [28][29][30][31][32][33][34][35] and biomolecular events [36][37][38] but also excitedstate kinetic rates in photophysics and photochemical reactions. [39][40][41][42] Despite being quite an old topic, this area has come into the limelight again from the viewpoints of mechanochromic chemistry [43][44][45][46][47]…”

Hydrostatic‐Pressure‐Controlled Molecular Recognition: A Steroid Sensing Case Using Modified Cyclodextrin

“…The relatively large positive values can reasonably be accounted in terms for the elimination of the bulky branch from the CD cavity upon complexation of the guest molecule (‘naphthyl‐in’→‘naphthyl‐out’ with guest) and also solvent reorientation. Such positive volume changes were often observed in the supramolecular complexation systems, [23–33] particularly in the cyclodextrin cases [28] . We did not use the K values at the further pressurization range (≥40 MPa) in the ln K ‐ P plot, because the predominant formation of the ‘naphthyl‐out’ complex ( vide supra ) hampers the recognition reporting by the dansyl inclusion/exclusion upon addition of guests.…”

“…This is, of course, because such stimuli‐responsive chemosensors appear to be excellent candidates for applications in chemical and hazardous material sensing, [11,14–16] physicochemical properties' probing, [17–19] and apoptosis imaging for cancer therapies [20–22] . Of many sophisticated chemosensors reported so far, pressure effects on molecular recognition processes have also been investigated, [23–33] as well as the above‐mentioned stimuli ones.…”