A promising guanidinium based metal-organic single crystal for optical power limiting applications

A novel guanidinium based metal-organic framework material (2(C H₆ N₃)⁺.Zn (C₂H₃O₂)₄]− has been synthesized and optical transparency of the crystals was studied. Structural parameters of the grown metal-organic crystals have been characterized by single crystal X-ray diffraction. The single crystal XRD study confirms that the title compound crystallized in tetragonal system with I 4₁ /a c d space group. The crystal structure has stabilized through intricate 3-D hydrogen bonding network established by the NH…O and CH…O interactions. The soft nature of the material has been identified by hardness study. UV–visible spectroscopy has been used to investigate the optical properties. Good thermal stability has been proved by TG-DTA. The third order nonlinear optical response was studied by Z-Scan technique.