A thermally induced order-disorder transition of tetraphenylporphyrin (2H-TPP) on Au(111) is characterised by a combination of scanning probe microscopy and X-ray photoelectron spectroscopy-based techniques. We observed that a transition from...

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Two polymorphic crystal forms of 6-methyl-N-phenyl-2,3-di­hydro-1,4-oxathiine-5-carboxamide) were isolated from a truncated, (12 solvent), polymorph screen on pure lyophillized material. Crystals of form 1 were obtained from all solvents included in the screen with the exception of methanol. As isolated from aceto­nitrile the crystals are triclinic, space group P with Z′ = 2. Crystals of form 2, which were isolated from methanol only are monoclinic, space group I2/a with Z′ = 1.