menucheckCIF procedure
PLAT367
PLAT367 Type_2 Test for long C? - C? (Angstrom difference) XRAY: 1.50
Large deviations from generally accepted values may indicate model problems, over refinement etc. Default C?-C? = 1.50 Ang. (X-Ray) value from Ladd & Palmer, Structure Determination by Xray Crystallography (1985).
