Themed collection 28th International Conference on Photochemistry (ICP 2017)

We are delighted to present this special collection of papers presented at the 28th International Conference on Photochemistry (ICP2017).

The additive and optimised assembly of gold nanoparticles on the surface of dye-doped silica enables the modulation of the photophysical behaviour of organic molecules.

The opportunities, properties and perspectives of smart photochromic materials, which are obtained by embedment of stimuli-responsive molecules in nanoporous MOFs (metal–organic frameworks), both in bulk and in thin films, are reviewed.

The structural dynamics of insulin hexamer dissociation were studied by the photoinduced temperature jump technique and monitored by time-resolved X-ray scattering.

The title compounds were synthesized. Bisbenzothienyl-ethenes showed turn-off fluorescent photochromism, while their disulfones showed one-way photocyclization reactions and the turn-on fluorescence.

How the triplet energy of β-diketonate ancillary ligands in Ir(III) complexes affects the phosphorescence emission: photochemical and electrochemical investigations and DFT calculations shed light on the dark triplet excited states.

We present simulations of the excited state dynamics and time-resolved photoelectron spectroscopy of photoexcited pentafluorobenzene.

Superhydrophobic fluorinated-polypyrene proved to be highly efficient to prevent biofilm adhesion.

Systematic spectroscopic study in organic solutions provides a new model for solvent-induced 3-hydroxyflavone deprotonation and solvent modulation of its photophysics.

The tight confinement of a styryl dye, LDS 730, within the 1D-nanochannels of a magnesium aluminophosphate, MgAPO-5, via a crystallization inclusion method, induces a boost in its emission properties in the NIR region.

Reprecipitation of pyrene (Py) in the glassy solution of methylcyclohexane and isopentane at 77 K was observed by the repetitive irradiation of nanosecond (ns) laser pulses at 355 nm.

The triplet excited state of a new Ir-based photosensitizer with two chromenopyridinone and one bipyridine-based ligands has been studied by pump–probe X-ray absorption spectroscopy (XANES) coupled with DFT calculations.

Photoinduced charge accumulation was investigated in a molecular dyad composed of a porphyrin chromophore and a ruthenium-based catalyst by pump–pump–probe experiments.

A diphenyl-boron β-diketonate complex was synthesized and compared with the related β-diketone and difluoro-boron complex, showing that the three compounds display very distinct photophysical and mechanofluorochromic behaviors.

The threading kinetics of a self-assembled molecular pump is increased upon functionalization of the azobenzene moiety with a cyano group.

Hole injection across interfaces is fast but critically depends on good contact between the hole transfer and light-harvesting materials.

Cu₂O nanoparticles (5 nm) adsorbed on defective graphene (Cu₂O/G, 1.74 wt%) is an efficient photocatalyst for CO₂ methanation in the presence of electron donors.

A weak fluorescence from eosin Y dimers can be observed. The fluorescence quantum yield was estimated to be 0.005.

Room-temperature phosphorescence of a Pt-porphyrin derivative was enhanced in quantum yield and lifetime by fixing it on the surface of nanometer-scale pores of porous glass.

Ultrafast low exergonic charge recombination following photoinduced charge separation proceeds in a non-equilibrium mode and its rate constant is nearly independent of the free energy gap.

Photodimerization pathways for different conformers of TpdC and dCpT mapped by PCM/TD-M052X calculations.

Six new carbazole based compounds are synthesized and proposed as high performance photoinitiators for both the free radical polymerization of acrylates and the cationic polymerization of epoxides.

We present a polarizable QM/MM strategy to simulate the absorption line shape of chromophores embedded in complex matrices, including both homogeneous and inhomogeneous broadening.

A metal oxide-heterojunction photocatalyst is developed to harvest sunlight, store the energy in electrons, and apply the stored energy in water treatment.

Structural, photophysical and electrochemical properties of heteroleptic copper(I) and silver(I) complexes [M(tBu-xantphos)(bpy)][PF₆] are described where tBu-xantphos is 4,5-bis(di-tert-butylphosphino)-9,9-dimethylxanthene.

Modeling time-resolved spectra to unravel ultra fast solvent reorganization.

Bi-photochromic compounds composed of two photochromic phenoxyl-imidazolyl radical complex units are developed. The stepwise photochromic properties can be regulated by control of the central bridging part.