Research Article

Synthesis and Crystal Structure Characterization of Zinc (II) Tetronic Acid Complexes

Table 1

Crystal data, structure refinement for [Zn(L–H)2(H2O)2][Zn(L–H)2(H2O)(MeOH)]H2O.

Empirical formulaC24.25H23O12.25Zn

Formula weight575.80
Temperature150(2) K
Wavelength0.68840 Å
Crystal systemMonoclinic
Space groupC2
Unit cell dimensionsa = 15.274(7) Å, = 90°
b = 8.812(4) Å, = 97.664(4)°
c = 39.525(18) Å, = 90°.
Volume5272(4) Å3
Z8
Density (calculated)1.451 Mg/m3
Absorption coefficient0.994 mm-1
F(000)2372
Crystal size0.16 0.10 0.02 mm3
Crystal descriptioncolourless plate
Theta range for data collection2.59 to 25.00°.
Index ranges−18 18, −10 10, −48 l 48
Reflections collected14618
Independent reflections8420 [ (int) = 0.0388]
Completeness to theta = 25.00°83.4 %
Absorption correctionSemi-empirical from equivalents
Max. and min. transmission0.9804 and 0.8571
Refinement methodFull-matrix least-squares on F2
Data/restraints/parameters8420/696/704
Goodness-of-fit on 1.132
Final indices [I 2 sigma (I)] = 0.0895, = 0.2373
indices (all data) = 0.0928, = 0.2396
Absolute structure parameter0.17(2)
Largest diff. peak and hole1.905 and −0.959 e.Å-3