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PETERS Karl and von SCHNERING Hans Georg (Max Planck Institute für Festkrperforschung, D 70569 Stuttgart, Germany)Zn(C 4H 4O 4) prepared by dissolving 0.483 g (1.41 mol) of Zn 3(OH) 4CO 3·H 2O and 0.5 g (4.23 mol) of C 4H 6O 4 in 50 mL of H 2O followed by slow evaporation at room temperature crystallizes in the monoclinic space group C 2 with the cell parameters a =0.757 9(1) nm, b =0.597 6(1) nm , c =0.626 5(1) nm, β =108.45(1)°, V =0.269 17(7) nm 3, D x=2.239 {g/cm 3}, Z =2 and the final R(F o)=0.039 and wR(F o 2)=0.088 for 396 reflections [ F o 2≥2 σ(F o 2)]. In the crystal structure unit, each Zn is tetrahedrally coordinated by four O atoms from four (C 4H 4O 4) 2- anions, each of which, in turn, bridges four Zn atoms to build up a 3D {} 3 ∞[Zn(C 4H 4O 4) 4/4 ] network. The thermal analyses indicate that Zn(C 4H 4O 4) is stable below 420 ℃.
PETERS Karl and von SCHNERING Hans Georg (Max Planck Institute für Festkrperforschung, D 70569 Stuttgart, Germany) Zn (C 4H 4 O 4) prepared by dissolving 0.483 g (1.41 mol) of Zn 3 (OH) 4CO 3 · H 2 O and 0.5 g (4.23 mol) of C 4 H 6 O 4 in 50 mL of H 2 O followed by slow evaporation at room temperature crystallizes in the monoclinic space group C 2 with the cell parameters a = 0.757 9 (1) nm, b = 0.597 6 (1) nm, c = 0.626 5 (1) nm, β = 108.45 (1) °, V = 0.269 17 (7) nm 3, D x = 2.239 {g / cm 3 R (F o) = 0.039 and wR (F o 2) = 0.088 for 396 reflections [F o 2 ≧ 2 σ (F o 2)]. In the crystal structure unit, each Zn is tetrahedrally coordinated by four O atoms from four (C 4H 4O 4) 2 anions, each of which, in turn, bridges four Zn atoms to build up a 3D { 3 ∞ [Zn (C 4H 4O 4) 4/4] network. The thermal Analyzes indicate that Zn (C 4H 4O 4) is stable below 420 ° C.