Acta Cryst. (2002). E58, i44-i48  [ doi:10.1107/S160053680200870X ]

(NH₄)(Zn,Ga)₂(PO₄)₂, an open-framework structure

M. Mrak, U. Kolitsch, V. Kaucic and E. Tillmanns

Online 24 May 2002

Key indicators

• Single-crystal X-ray study
• T = 150 K
• Mean (P-O) = 0.002 Å
• R factor = 0.023
• wR factor = 0.059
• Data-to-parameter ratio = 17.5

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



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

General Notes



FORMU_01  There is a discrepancy between the atom counts in the                 
          _chemical_formula_sum and _chemical_formula_moiety. This is           
          usually due to the moiety formula being in the wrong format.          
          Atom count from _chemical_formula_sum:   H4 Ga1 N1 O8 P2 Zn1          
          Atom count from _chemical_formula_moiety:                             

ABSTM_02  When printed, the submitted absorption T values will be replaced      
          by the scaled T values. Since the ratio of scaled T's is              
          identical to the ratio of reported T values, the scaling does         
          not imply a change to the absorption corrections used in the          
          study.                                                                
          Ratio of Tmax expected/reported      0.904                            
          Tmax scaled      0.465 Tmin scaled      0.328                         


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check

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