Acta Cryst. (2002). E58, o222-o223  [ doi:10.1107/S1600536802001745 ]

A monoclinic polymorph of 3-amino-4'-(N,N-diethylamino)-5-methylbiphenyl-2,4-dicarbonitrile

A. Subbiah Pandi, D. Velmurugan, S. Shanmuga Sundara Raj, H.-K. Fun and V. Raghukumar

Online 8 February 2002

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.005 Å
• R factor = 0.068
• wR factor = 0.185
• Data-to-parameter ratio = 16.7

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



RINTA_01  Alert C The value of Rint is greater than 0.10                        
          Rint given   0.124                                                    

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(2)   -   C(7)   =       1.43 Ang.

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(4)   -   C(8)   =       1.44 Ang.

PLAT_420  Alert C D-H Without Acceptor       N(1)   -   H(1B)             ?


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 4 Alert Level C = Please check

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