(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2001). E57, m570-m572 [ doi:10.1107/S1600536801018876 ]

[Indenyllithium·2(N,N,N'-trimethylethylenediamine)]: N-H hydrogen bridges to the indenyl anion

G. Boche, B. Ledig, M. Marsch and K. Harms

Online 10 November 2001

Key indicators

Single-crystal X-ray study
T = 173 K
Mean (C-C) = 0.003 Å
Disorder in solvent or counterion
R factor = 0.040
wR factor = 0.114
Data-to-parameter ratio = 9.7

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level A:



THETM_01  Alert A The value of sine(theta_max)/wavelength is less than 0.550    
          Calculated sin(theta_max)/wavelength =    0.5310                      


 Alert Level C:



REFNR_01  Alert C Ratio of reflections to parameters is < 10 for a              
          centrosymmetric structure                                             
          sine(theta)/lambda                0.5310                              
          Proportion of unique data used    1.0000                              
          Ratio reflections to parameters   9.6569                              

PLAT_302  Alert C Anion/Solvent Disorder .......................      50.00 Perc.

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


 1 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 3 Alert Level C = Please check