WebSep 1, 2009 · Crystallochromy of perylene pigments: Interference between Frenkel excitons and charge-transfer states Authors: Linus Gisslén R. Scholz Technische … WebCrystallography is the experimental science of determining the arrangement of atoms in crystalline solids. Crystallography is a fundamental subject in the fields of materials …
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WebMay 1, 2000 · Solution spectra of perylenetetracarboxylic dianhydride (PTCDA) show an equilibrium between monomers and dimers, with fluorescence exclusively from monomers and absorption from both. The dimer absorption follows closely the spectrum of PTCDA stacks in crystalline films, which indicate strong coupling to a molecular vibration and … WebActa Crystallographica B is the forum for the publication of such contributions. Scientific developments based on experimental studies as well as those based on theoretical … shoe hickeys
Crystallochromy of perylene pigments: Influence of an ... - Idsia
WebOct 10, 2009 · Quantum chemical ab initio calculations are performed at MP2 and B3LYP levels of theory and 6-311 ++G** basis set in order to determine the changes in the geometrical parameters and IR-spectroscopic characteristics as a result of Npy protonation. The observed crystallochromy effect is discussed as well. WebJan 17, 2012 · Whilst searching the literature, we stumbled upon the term “crystallochromy”, which was defined as the dependence of solid‐state color on crystal packing. WebMar 1, 2024 · Cromology’s Brands. Cromology brings together almost thirty brands, about twenty of which benefit of a strong awareness in their respective countries. All Brands. … shoe hidden compartment