checkCIF procedure

PLAT242


PLAT242 Type_2 Test for Unusually Low U(eq) as compared with bonded neighbours
 The U(eq) value of an atom is compared with the average U(eq) for  
 non-hydrogen atoms bonded to it. Large differences may indicate that the   
 wrong atom type was assigned (e.g. N instead of O). False alarms may   
 occur for terminal groups such as the t-butyl moiety.  
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