The cif may not pass the IUCr
checks so that a crystal structure having a large number of solvent-accessible voids should at least provide a satisfactory account of the procedure if the solvent molecule could not be modeled even with a number of restraints.
We are proud to partner with the IUCr and UNESCO to promote these important initiatives.
Agilent is supporting a number of key IYCr2014 initiatives, including IUCr-UNESCO OpenLab and the IUCr "Crystallography in Everyday Life" photo competition.
Two-thirds of the 323 companies participating in the IUCR
are small businesses.
2] specimen used here was prepared for the CPD and IUCR
size round robin by Louer and Audebrand .
But by 1992 the IUCr
Ad Interim Commission on Aperiodic Crystals wrote "by 'crystal' we mean any solid having an essentially discrete diffraction pattern, and by 'aperiodic crystal' we mean any crystal in which three-dimensional lattice periodicity can be considered to be a bsent" (9).
An international round- robin project was conceived during the 1981 IUCr meeting in Ottawa, Canada.
Third, neither the IUCr nor the ACA has the resources to support a long term commitment to produce and maintain an SRM to supply a broad community of commercial, academic, and government needs.