Crystal engineering, solid state spectroscopy and time-resolved diffraction

Syntheses, Structures, Photoluminescence and Theoretical Studies of Xanthone in Crystalline Resorcinarene‐Based Inclusion Complexes

“…Control of luminescence quenching and the corresponding enhancement of the light-emission has technological applications in the design of light-emitting diodes, [7,8] and is required for time-resolved diffraction studies of transient species in supramolecular environments. [10] However, few systematic investigations on the relation between structure and properties have been carried out as extensive structural information is only now becoming available [11] and computational techniques have only recently allowed reliable calculations of larger molecules.…”

Out-of-equilibrium charge density distribution of spin crossover complexes from steady-state photocrystallographic measurements: experimental methodology and results

“…Alternatively, the use of supramolecular solids (e.g. calixarene-based) as host for photoactive molecules was proposed as an efficient strategy for extending the excited-state lifetime while preserving the crystal lattice [69], and allowing possibly higher photoconversion. Complementary techniques like transmission optical spectroscopy, used in combination with the diffraction experiment, could be applied to probe the ground to metastable state population ratio and therefore inspect in situ the photoconversion efficiency and relaxation.…”

An Unstable Ligand‐Unsupported CuIDimer Stabilized in a Supramolecular Framework

“…[19] For example, we have shown recently that the xanthone molecule occurs as a monomer and as a dimer in two crystalline resorcinarenebased inclusion complexes and results in significant variation of its spectral properties. [20] On excitation, the xanthone dimer forms a phosphorescing excimer.…”