Synthesis, structure, and luminescence of Cd-MOF based on 5-(4-(1-Imidazolyl)phenyl)pyrimidine and cadmium silicofluoride

ABSTRACT

A novel Cd-Metal-organic frameworks (MOF) was generated based on asymmetric ligand 5-(4-(1-imidazolyl)phenyl)pyrimidine (L) with CdSiF₆. The crystal belongs to the orthorhombic system, space group Pnna with a  =  15.429(3), b  =  16.683(3), and c  =  12.703(3) Å, C₂₆H₂₀CdF₆N₈Si. L acts as a bridging bidentate ligand to link Cd(II) centers to generate a (4, 4) net architecture, further linked by fluosilicate anions resulting in a 3D network with fluosilicate anions encapsulated in channels. In addition, the luminescent properties of L and Cd-MOF were investigated primarily in the solid state.

KEYWORDS:

• MOFs
• crystal structure
• asymmetric ligand
• luminescence

Funding

This work was supported by the National Natural Science Foundation of China (No. 21402010, 81601049).