Acta Cryst. (2002). E58, o498-o500  [ doi:10.1107/S1600536802005743 ]

Anilinium 3-methyl-1,2-butadienyl-1,1-diphosphonate(1-)

C. M. Angelov, J. P. Heever, R. McDonald, A. J. B. McEwan and J. R. Mercer

Online 5 April 2002

Key indicators

• Single-crystal X-ray study
• T = 193 K
• Mean (C-C) = 0.005 Å
• R factor = 0.043
• wR factor = 0.110
• Data-to-parameter ratio = 11.4

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_728  Alert C D-H..A  Calc      172(6), Rep      170.90, Dev.      1.10 Deg.
                     O1   -H1   -O1      1.555   1.555   7.545

PLAT_748  Alert C D-H..A  Calc    137.5(8), Rep      137.30 ....    Missing s.u.
                     N    -H1A  -O1      1.555   1.555   1.555


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 2 Alert Level C = Please check

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