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 the correct value or not. | 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 HSQC experiment. | 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 | |