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An Information Portal to Biological Macromolecular Structures |
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Dictionary Resources Home | Dictionary | Category Groups | Categories | Items | Data |
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Category exptl_crystal 
Category Description
Data items in the EXPTL_CRYSTAL category record the results of
experimental measurements on the crystal or crystals used,
such as shape, size or density.
Category Examples 
Example 1:
Example 1 - based on laboratory records for Yb(S-C5H4N)2(THF)4.
_exptl_crystal.id xst2l
_exptl_crystal.colour 'pale yellow'
_exptl_crystal.density_diffrn 1.113
_exptl_crystal.density_Matthews 1.01
_exptl_crystal.density_meas 1.11
_exptl_crystal.density_meas_temp 294.5
_exptl_crystal.density_method 'neutral buoyancy'
_exptl_crystal.density_percent_sol 0.15
# P = 1 - (1.23*N*MMass) / V
_exptl_crystal.description 'hexagonal rod, uncut'
_exptl_crystal.F_000 202
_exptl_crystal.preparation
; hanging drop, crystal soaked in 10% ethylene glycol for
10 h, then placed in nylon loop at data collection time
;
_exptl_crystal.size_max 0.30
_exptl_crystal.size_mid 0.20
_exptl_crystal.size_min 0.05
_exptl_crystal.size_rad 0.025
Example 2:
Example 2 - using separate items to define upper and lower
limits for a value.
_exptl_crystal.id xst2l
_exptl_crystal.density_meas_gt 2.5
_exptl_crystal.density_meas_lt 5.0
Example 3:
Example 3 - here the density was measured at some
unspecified temperature below room temperature.
_exptl_crystal.id xst2l
_exptl_crystal.density_meas_temp_lt 300
Key Category Items 
Items in Category exptl_crystal