CheckCIF-PLAT180-187
PLAT180 Type_4 Check Rounding of Cell Axes and Angles
It is unusual that more cell parameters end with a zero and the s.u. is 10. This problem might be caused by the specification of insufficient 'meaningful' digits as compared to the reported s.u. see also: W. Clegg, Acta Cryst. (2003) E59, e2-e5.
不同寻常的是有很多以零结尾的晶胞参数其标准偏差(s.u.)为10。此问题可能是由于与报告的标准偏差(s.u.)相比,所指定的“有意义”数字(有效数字)不足所致。另见:W. Clegg, Acta Cryst. (2003) E59, e2-e5.
(http://journals.iucr.org/services/cif/checking/PLAT180.html)
警告原因:较多晶胞参数以零结尾,但标准偏差为10。
解决策略:可能数据质量不高,如有必要,重新收集数据。
PLAT181 Type_1 Check for all angles exactly 90 degrees in monoclinic
One of the angles in a monoclinic cell is expected to be not exactly 90 degrees.
单斜晶胞中的一个角度不是预期的那样精确为90度。
(http://journals.iucr.org/services/cif/checking/PLAT181.html)
警告原因:单斜晶胞中预期为90度的晶胞参数不是精确的90度。
解决策略:检查是否晶胞定错,如有必要,重新还原数据。
PLAT182 Type_1 Check for at least one s.u. greater than zero in monoclinic
One angle should have an s.u. greater than zero in a monoclinic cell.
单斜晶胞中应有一个角度的标准偏差(s.u.)应大于零。
(http://journals.iucr.org/services/cif/checking/PLAT182.html)
警告原因:所测数据为单斜晶系,但晶胞参数不符合应有一个角度的标准偏差(s.u.)应大于零。
解决策略:检查是否晶胞定错,如有必要,重新还原数据。
PLAT183 Type_1 Check for _cell_measured_reflns_used value reported
Please supply the value for _cell_measurement_reflns_used.
(http://journals.iucr.org/services/cif/checking/PLAT183.html)
例:PLAT183_ALERT_1_A Missing _cell_measurement_reflns_used Value .... Please Do !
警告原因:“_cell_measurement_reflns_used”项(确定晶胞时所用的衍射点)数值缺失。
解决策略:在“name._ls”或“name.cif_od”或“CrystalClear.cif”文件中找到并在CIF中填写即可。
PLAT184 Type_1 Check for _cell_measured_theta_min value reported
Please supply the value for _cell_measurement_theta_min.
(http://journals.iucr.org/services/cif/checking/PLAT184.html)
例:PLAT184_ALERT_1_A Missing _cell_measurement_theta_min Value ...... Please Do !
警告原因:“_cell_measurement_theta_min”项(确定晶胞时的最小θ角)数值缺失。
解决策略:在“name._ls”或“name.cif_od” 或“CrystalClear.cif”文件中找到并在CIF中填写即可。
PLAT185 Type_1 Check for _cell_measured_theta_max value reported
Please supply the value for _cell_measurement_theta_max.
(http://journals.iucr.org/services/cif/checking/PLAT185.html)
例:PLAT185_ALERT_1_A Missing _cell_measurement_theta_max Value ...... Please Do !
警告原因:“_cell_measurement_theta_max”项(确定晶胞时的最大θ角)数值缺失。
解决策略:在“name._ls”或“name.cif_od” 或“CrystalClear.cif”文件中找到并在CIF中填写即可。
PLAT186 Type_4 Check for ISOR Record(s) in CIF-Embedded shelxl.res
The use of ISOR record(s) in the SHELXL .res file should be documented in the experimental section of the associated publication.
在SHELXL .res文件中使用ISOR的记录应标注于有关出版物的实验部分。
(http://journals.iucr.org/services/cif/checking/PLAT186.html)
警告原因:使用了ISOR限制命令。
解决策略:一般不用解决,有合理解释即可。
PLAT187 Type_4 Check for RIGU Record(s) in CIF-Embedded shelxl.res
The use of RIGU record(s) in the SHELXL .res file should be documented in the experimental section of the associated publication.
在SHELXL .res文件中使用RIGU的记录应标注于有关出版物的实验部分。
(http://journals.iucr.org/services/cif/checking/PLAT187.html)
警告原因:使用了RIGU限制命令。
解决策略:一般不用解决,有合理解释即可。