A code which identifies the methods used to locate the initial
atomic sites. The solution_primary code identifies how the first
atom sites were determined.
*** This data item would not in general be used in a
macromolecular data block. ***
| Item Value | Description |
|---|---|
| difmap | difference Fourier map |
| vecmap | real-space vector search |
| heavy | heavy-atom method |
| direct | structure-invariant direct methods |
| geom | inferred from neighbouring sites |
| disper | anomalous-dispersion techniques |
| isomor | isomorphous structure methods |
| Alias Name | Dictionary | Version |
|---|---|---|
| _atom_sites_solution_primary | cif_core.dic | 2.0.1 |