N-heterocyclic carbenes Aperiodicity Alkane/urea crystals Photocrystallography Lattice constants Dienes Phase transitions Photoinduced Femtosecond probes of molecules in solids and of molecular solids 8CB Intersystem crossing ALKALI-METAL-ION Solid State NMR spectroscopy X-ray diffraction AP Monte Carlo methods X-Ray diffraction Calixarenes Anion-ordering transition Spin-crossover Heterometallic complexes Spin crossover Absorption spectroscopy Aperiodic crystals Charge transfer Acetylenic compounds Gold Coherence Differential scanning calorimetry Magnetic properties Alcane/urée Dynamical structural science Alkynes TTF-CA Ab initio calculations 10-phenanthroline Laser spectroscopy Antimicrobial activity RELAXATION Cooperativity Crystallography Photoinduced transition Organic compounds And nanoscale systems structure and nonelectronic properties Nickel Femtochemistry Neutron scattering Spin transition Iron Time-resolved X-ray scattering Density functional calculations Helicenes Electron spin resonance spectroscopy Amino acids Anti-bacterial activity Time resolved spectroscopy Synthesis chemical Quasicrystal approximant And phase transitions Ageing Allylic substitution Photo-crystallography Photomagnetism Space groups DNA Time-resolved diffraction Crystallographic aspects of phase transformations Single crystals High pressure Neutron diffraction Diffraction Inorganic compounds Nonequilibrium processes Diffuse scattering X-ray absorption spectroscopy Time-resolved spectroscopy Photochemistry Polymorphism Regioselectivity Structure elucidation Hysteresis Alkane/urea Ab Initio Calculations Ultrafast spectroscopy Quasicrystal Palladium Solid state NMR spectroscopy Crystal structure Cavitands Structural phase transition Phase transition Crystallographic superspace LIESST Copper Pressure effects Aperiodic composite crystals Luminescence Homogeneous catalysis Inclusions