CheckCIF-PLAT350-357
PLAT350 Type_3 Test for short C - H (Angstrom Difference) XRAY: 0.96 NEUT 1.08
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default C-H = 0.96 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认C-H键键长为0.96 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT350.html)
警告原因：结构中存在过短的C-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT351 Type_3 Test for long C - H (Angstrom Difference) XRAY: 0.96 NEUT 1.08
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default C-H = 0.96 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认C-H键键长为0.96 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT351.html)
警告原因：结构中存在过长的C-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT352 Type_3 Test for short N - H (Angstrom Difference) XRAY: 0.87 NEUT 1.009
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default N-H = 0.87 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认N-H键键长为0.87 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT352.html)
警告原因：结构中存在过短的N-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT353 Type_3 Test for long N - H (Angstrom Difference) XRAY: 0.87 NEUT 1.009
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default N-H = 0.87 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认N-H键键长为0.87 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT353.html)
警告原因：结构中存在过长的N-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT354 Type_3 Test for short O - H (Angstrom Difference) XRAY: 0.82 NEUT 0.983
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default O-H = 0.82 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认O-H键键长为0.82 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT354.html)
例：PLAT354_ALERT_3_C Short O-H (X0.82, N0.98A) O19 - H19B
警告原因：O-H键键长过短。
解决策略：用DFIX将O-H键和N-H键限制成0.82和0.98。
PLAT355 Type_3 Test for long O - H (Angstrom Difference) XRAY: 0.82 NEUT 0.983
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default O-H = 0.82 Ang. (X-Ray) value from SHELXL.
与一般可接受值相差较大可能意味着模型存在问题、过度精修等。默认O-H键键长为0.82 Å，该值来自SHELXL内嵌的(X射线)值。
(http://journals.iucr.org/services/cif/checking/PLAT355.html)
警告原因：结构中存在过长的O-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT356 Type_3 Test for short B-H distance
A short B-H distance may be due to fixing that distance to a wrong value, e.g. to that of the C-H distance in a CH3 group.
过短的B-H键键长可能是由于将其固定为一个错误值，例如将其固定为甲基中的C-H键键长。
(http://journals.iucr.org/services/cif/checking/PLAT356html)
警告原因：结构中存在过短的B-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
PLAT357 Type_3 Test for long B-H distance
Check the long reported B-H bond distance (B-H is expected to have a value around 1.16 Ang in a BH3 group).
检查报告的过长的B-H键键长(BH3基团中B-H键键长预期值大约再1.16 Å)。
(http://journals.iucr.org/services/cif/checking/PLAT357.html)
警告原因：结构中存在过长的B-H键。
解决策略：可用DFIX限制其键长，或将其删除后进行理论加氢。
