TITLE:
Structural studies and conductivity of [Fe(O3C4)(COO)]·H2O based H4btec (H4btec = 1,2,4,5-benzenetetracarboxylic acid)
AUTHORS:
Manel Halouani, Mohamed Abdelhedi, Mohamed Dammak, Nathalie Audebrand, Lilia Ktari
KEYWORDS:
Hydrothermal Synthesis; X-Ray Diffraction; Crystal Structure
JOURNAL NAME:
Open Journal of Inorganic Chemistry,
Vol.3 No.4,
October
17,
2013
ABSTRACT: A
new metal-organic hybrid compound[Fe(O3C4)(COO)]·H2O
I has been hydrothermally synthesized and characterized by single-crystal X-ray
diffraction. Rust crystals crystallize in the monoclinic system, space group I2/a, a = 6.9651(2) A, b = 8.12630(10) A, c =
19.4245(2) A, β = 92.6600(10)°; V = 1098.25(4) A3; Z = 2 and Dx =3.63g/cm3.
The refinement converged into R =
0.042; Rw = 0.058. The
structure, determined by single crystal X-ray diffraction, consists of a
network of FeO6 centers, octahedral coordinated by btec (btec = 1,2,4,5-benzenetetracarboxylic
acid) anions giving rise to a
two-dimensional sheet structure. In the compound I,[Fe(O3C4)(COO)]·H2O,
the FeO6 group bridged by the 1,2,4,5-benzenetetracarboxyl anion
exist in a unit cell, with each anion lying about an inversion centre. One of the FeO2 adistance [1.965(2)] significantly corresponds to the
shortest distance as the other and the distances found in the axial direction
of compound I.