Syntheses, crystal structures, and fluorescence of two complexes constructed by N ′-(pyridin-2-ylmethylene)-2-( 1H -1,2,4-triazol-1-yl)acetohydrazide

Abstract

Two new binuclear complexes, Cd₂(HL)₂(NO₃)₄ · (CH₃OH)₂ (1) and Cu₂(L)₂(ClO₄)₂ (2), based on N′-(pyridin-2-ylmethylene)-2-(1H-1,2,4-triazol-1-yl)acetohydrazide (HL) and Cd(II) and Cu(II) salts have been synthesized and characterized by single crystal X-ray diffraction. Hydrogen bonds and π–π interactions extend both binuclear molecules, a 3-D supramolecular framework for 1 and 1-D staggered chains for 2. Fluorescence of both complexes is discussed.

Keywords:

• Triazole derivative
• Transition metal ion
• Crystal structure
• Fluorescence

Acknowledgments

We gratefully acknowledge the financial support of the National Natural Science Foundation of China (Nos. 20871106 and 91010008).