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