Core dictionary (coreCIF) version 2.3.1




   The number of hydrogen atoms attached to the atom at this site
   excluding any hydrogen atoms for which coordinates (measured or
   calculated) are given.


2 water oxygen
1 hydroxyl oxygen
4 ammonium nitrogen

Appears in list containing _atom_site_label

The permitted range is 0 -> 8
Enumeration default: 0

Type: numb

Category: atom_site

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