Abstract
A novel strontium carboxylate–sulfonate coordination polymer, [Sr(HSIP)(H2O)3]n·nH2O (1) (NaH2SIP=5-sulfoisophthalic monosodium salt) has been synthesized by hydrothermal reaction. It was characterized by X-ray single crystal diffraction, infrared spectroscopy, elemental and thermogravimetric analysis. Each strontium atom is eight-coordinate with a distorted bicapped trigonal prismatic arrangement. The whole HSIP2− ligand acts as a η5μ4 bridge to generate three-fold interpenetrated CdSO4-type network structure, which is constructed from the left- and right-handed helixes paralleled to each other bridged by the HSIP2− ligands. The luminescence spectrum indicates an emission maximum at 459nm. Compound 1 shows a second harmonic generation (SHG) response that is 4 times that of KH2PO4.
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