Acta Cryst. (2003). E59, o474-o475  [ doi:10.1107/S1600536803005324 ]

Di-tert-butyl 7,14-dihydro-7,14-dioxoquino[2,3-b]acridine-5,12-dicarboxylate

J. Mizuguchi

Online 21 March 2003

Key indicators

• Single-crystal X-ray study
• T = 93 K
• Mean (C-C) = 0.004 Å
• R factor = 0.042
• wR factor = 0.075
• Data-to-parameter ratio = 13.0

checkCIF results

No syntax errors found
Problems with publication fields




 Alert Level A:


PUBL_003  Alert A The contact author's name is missing,                         
           _publ_contact_author_name.                                            

ADDSYM reports no extra symmetry


 1 Alert Level A = Potentially serious problem

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 0 Alert Level C = Please check

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