Elaboration, structural, thermal and vibrational studies of two new cadmium hybrid compounds: [Cd(OH)] 2[O 2C(CH 2) 2CO 2], and [Cd 3(OH) 2][O 2C(CH 2) 2CO 2] 2

Abstract

Two new cadmium hybrid inorganic–organic compounds have been hydrothermally prepared and structurally characterized using single-crystal X-ray diffraction. [Cd(OH)] 2[O 2C(CH 2) 2CO 2] ([CD1]) is Monoclinic P2 1/c, a = 10.12 ( 2 ) Å , b = 5.554 ( 5 ) Å , c = 6.134 ( 3 ) Å , β = 96.24 ( 8 ) ° and z = 2 . [Cd 3(OH) 2][O 2C(CH 2) 2CO 2] 2 ([CD2]) is Orthorhombic Pcca, a = 10.657 ( 2 ) Å , b = 6.8610 ( 3 ) Å , c = 16.949 ( 3 ) Å , and z = 4 . Both [CD1] and [CD2] have bi-dimensional inorganic networks pillared by carbon atoms of the succinate anions. [CD1] inorganic moiety is composed of a double layer of equivalent CdO 6 octahedra sharing corners or edges. Smoothly corrugated mono-layers of CdO 6 octahedra sharing corners or edges are present in the [CD2] inorganic moiety. Thermal as well IR spectroscopic studies are also presented. These hybrid compounds are stable up to 400 °C under air flow.