CheckCIF-PLAT193-203
PLAT193 Type_1 Test for consistency of cell & diffraction temperatures
The reported _cell_measurement_temperature deviates from the reported _diffrn_ambient_temperature values.
所报告的_cell_measurement_temperature值偏离所报道的_diffrn_ambient_temperature值。
(http://journals.iucr.org/services/cif/checking/PLAT193.html)
警告原因：CIF中_cell_measurement_temperature和_diffrn_ambient_temperature相差较大。
解决策略：根据实际情况将其改正即可。
PLAT197 Type_1 Test for specification of unitcell measurement temperature
Please specify the temperature (Kelvin) at which the unit-cell was determined.
请指定单胞测定的温度(开尔文)。
(http://journals.iucr.org/services/cif/checking/PLAT197.html)
警告原因：未给出晶胞测定的温度。
解决策略：根据实际情况在CIF中_cell_measurement_temperature填上即可。
PLAT198 Type_1 Test for specification of Datacollection temperature
Please specify the temperature (Kelvin) at which the intensity data were collected.
请指定强度数据测定的温度(开尔文)。
(http://journals.iucr.org/services/cif/checking/PLAT198.html)
警告原因：未给出强度数据测定的温度。
解决策略：根据实际情况在CIF中_diffrn_ambient_temperature填上即可。
PLAT199 Type_1 Test for SHELXL Roomtemperature Default (Cell)
The cell determination temperature is set in the CIF by default by SHELXL97 to 293 K when the TEMP instruction is not used. The actual temperature is likely either slightly or significantly (in case of a low temperature data collection) different.
当未使用TEMP命令时，CIF中晶胞测定的温度由SHELXL97设定为默认值293K。实际温度可能略有不同，也可能显著不同(在低温进行数据收集的情况下)。
(http://journals.iucr.org/services/cif/checking/PLAT199.html)
警告原因：晶胞测定的温度为SHELXL指定的室温默认值。
解决策略：检查是否与实际情况相符，否则根据实际情况在CIF中_cell_measurement_temperature改正即可。
PLAT200 Type_1 Test for SHELXL Roomtemperature Default (Datacollection)
The data collection temperature is set in the CIF by default by SHELXL97 to 293 K if the TEMP instruction is not used. The actual temperature is likely either slightly or significantly (for a low temperature data collection) different.
当未使用TEMP命令时，CIF中数据收集的温度由SHELXL97设定为默认值293K。实际温度可能略有不同，也可能显著不同(在低温进行数据收集的情况下)。
(http://journals.iucr.org/services/cif/checking/PLAT200.html)
警告原因：数据收集的温度为SHELXL指定的室温默认值。
解决策略：检查是否与实际情况相符，否则根据实际情况在CIF中_diffrn_ambient_temperature改正即可。
PLAT201 Type_2 Test for isotropic non-H atoms in main residue(s)
This test reports on non-hydrogen atoms that were refined with isotropic displacement parameters only in the main residue. Such a practice is unusual by modern standards and only needed for minor disorder modelling.
(http://journals.iucr.org/services/cif/checking/PLAT201.html)
警告原因：部分非氢原子没有进行各向异性精修。
解决策略：将所有原子进行各向异性精修并重新生成CIF文件，否则需要给出合理解释。
PLAT202 Type_3 Test for isotropic non-H atoms in anion ? or solvent ?
This test reports on isotropically refined atoms in small moieties (usually anions or solvent).
此检查报告小部分(通常为阴离子或溶剂)中各向同性精修的原子。
(http://journals.iucr.org/services/cif/checking/PLAT202.html)
警告原因：部分非氢原子没有进行各向异性精修。
解决策略：将所有原子进行各向异性精修并重新生成CIF文件，否则需要给出合理解释。
PLAT203 Type_2 Test for negative non-Hydrogen U(iso)
Isotropic U(iso) values are expected to have a positive value.
(http://journals.iucr.org/services/cif/checking/PLAT203.html)
例：PLAT203_ALERT_2_A Negative Isotropic ADP for O3 ........ -0.010 Report
警告原因：O3原子温度因子为负值。
解决策略：如果仅是个别原子不正常，检查原子类型是否定错，是否需要无序处理，或采用delu或者isor限制精修；如果整体温度因子不正常，检查数据质量是否足够高，或者定错空间群。
