Tag category Spectral_dim
Key tags (columns):
Tags in table Spectral_dim:
| Tag | Description | data type | Mandatory |
|---|---|---|---|
| Absolute_peak_positions | A flag determining whether peak positions are given as absolute_peak_positions. If yes peaks are shown at correct unaliased positions whether this is within the acquisition window or not. If no peaks are shown in the acquisition window whether this is | yes_no | |
| Acquisition | The spectral dimension that is the one used to acquire the data. | yes_no | |
| Atom_isotope_number | The mass number for the specified atom. | int | yes |
| Atom_type | The value for this tag is a standard IUPAC abbreviation for an element (i.e. H C P etc). | code | yes |
| Axis_code | A code that labels the spectral axis for the defined spectral dimension. Values like F3 or 13C are common. | code | |
| Center_frequency_offset | The frequency offset from the spectrometer base frequency to the center of the spectral dimension. | float | |
| Encoded_reduced_dimension_ID | The spectral dimension in a reduced dimensionality experiment that is the source of the magnetization that has been encoded. | int | |
| Encoding_code | Code describing how information from one spectral dimension has been encoded in another dimension in for example a reduced dimensionality experiment. | line | |
| Entry_ID | Pointer to '_Entry.ID' | code | yes |
| ID | An integer value that specifies the dimension of a multidimensional NMR spectrum. | int | yes |
| Magnetization_linkage_ID | The magnetization linkage ID is used to designate dimensions of a multidimensional NMR experiment where the nuclei observed in the dimensions are directly linked by a one bond scalar coupling. For example the amide proton and amide nitrogen in an 1H-15N | int | |
| Sf_ID | Pointer to '_Spectral_peak_list.Sf_ID' | int | yes |
| Spectral_peak_list_ID | Pointer to '_Spectral_peak_list.ID' | int | yes |
| Spectral_region | A code defining the type of nuclei that would be expected to be observed in the spectral region observed in the dimension of the spectrum. | line | yes |
| Spectrometer_frequency | The operating proton frequency in MHz of the NMR spectrometer in the defined spectral dimension used to collect the data. | float | |
| Sweep_width | The width of the spectral window observed in Hz or ppm. | float | |
| Sweep_width_units | The units for the sweep width value (Hz or ppm) | code | |
| Under_sampling_type | The type of spectral folding caused by undersampling in the spectral dimension. | code | |
| Value_first_point | The value for the first point in the spectral dimension in the units used for defining the sweep width for the spectral dimension. | float | |