a unique apparatus for growing single crystals in capillaries under controlled
conditions applying a miniature zone melting procedure. It allows choosing
well-defined settings for crystal growths with automated software con-trolled
conditions, with repeated scans for
purifying, with positional shifts,
varying temperature gradients and speeds, but without breaking the capillary,
without creating turbulences with icing, without obscuring the crystallization
zone and without the need of a permanent inter-ference. Capillaries are
filled with substances, sealed, mounted at a single crystal diffractometer
and cooled with an LT device.
you never thought to determine the crystal structures of, can often be
easily crystallized. Gases like acetylene, propane or ammonia, sealed
in the capillary can be crystallized and are accessible for structure
determination; co-crystals, liquid crystals or ionic liquids, sensitive
compounds and explosives, plastic phases and solutions can be investigated,
there is a huge playground for the new field of cryo-crystallography.