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Tetraaquacobalt(II) bis[vanadyl(IV) phosphate], [Co(H(2)O)(4)][VO(PO(4))](2)
Bi-Zhou Lin1, Xiao-Ke Pei, Pei-De Liu
1Institute of Materials Physical Chemistry, Huaqiao University, Quanzhou 362011, People's Republic of China. bzlin@hqu.edu.cn
Summary
The novel three-dimensional framework structure of cobalt-vanadyl phosphate features alternating layers and tetrahydrated cobalt ions. This arrangement creates a robust structure with specific cobalt-oxygen bond distances.
Area of Science:
- Inorganic Chemistry
- Crystal Engineering
- Materials Science
Background:
- Vanadyl phosphates are known for their diverse structural motifs.
- Cobalt ions can participate in forming complex coordination frameworks.
- Understanding layered structures is key to designing new materials.
Purpose of the Study:
- To elucidate the crystal structure of a novel cobalt-vanadyl phosphate compound.
- To investigate the coordination environment of cobalt ions within the framework.
- To characterize the bonding and structural features of the vanadyl phosphate layers.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the atomic arrangement.
- Analysis of coordination geometry and bond distances.
- Description of the layered and 3D framework assembly.
Main Results:
- The structure consists of [VO(PO(4))] layers interconnected by tetrahydrated Co(2+) ions.
- Vanadyl oxo groups and cobalt ions coordinate in a trans fashion.
- A 3D framework is generated with specific Co-O bond lengths of 2.157 (4) Å.
Conclusions:
- The compound [Co(H(2)O)(4)][VO(PO(4))](2) exhibits a unique 3D framework structure.
- The coordination of cobalt ions links the vanadyl phosphate layers, creating structural complexity.
- This study provides insights into the crystal engineering of vanadyl phosphate-based materials.