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Core CIF Dictionary version 2.3



'_exptl_crystal_density_meas_gt' '_exptl_crystal_density_meas_lt'

Category: exptl_crystal

Data type: numb

May appear in a looped list containing '_exptl_crystal_id'

Enumeration range: 0.0 -> infinity

Units: Mg^-3^ ( megagrams per cubic metre)

Related item: '_exptl_crystal_density_meas'
Related function: alternate


'_exptl_crystal_density_meas_lt 1.0' 'specimen floats in water'

;                              _exptl_crystal_density_meas_gt    2.5   
_exptl_crystal_density_meas_lt 5.0

;                              Only the range within which the density
lies was given in the original paper


The value above which (*_gt) or below which (*_lt) the density measured using standard chemical and physical methods lies. The units are megagrams per cubic metre (grams per cubic centimetre). These items should not be used to report new experimental work where _exptl_crystal_density_meas should be used. They are intended for use in reporting information in existing databases and archives which would be misleading if reported under _exptl_crystal_density_meas.

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