Synthesis of 2-D graphite-like and 3-D diamond-like silver(I) polymers with 1,3-imidazolidine-2-thione

Abstract

Two metal–organic coordination polymers, [Ag₂(imdt)₃(OAc)₂] _n (1) (imdt = 1,3-imidazolidine-2-thione, OAc = CH₃COO⁻) and [Ag(imdt)Cl] _n (2), were synthesized under similar conditions by using Et₃N (triethylamine) as buffering agent. X-ray diffraction shows that 1 crystallizes in the monoclinic system, C2 /c space group, a = 13.822(5) Å, b = 9.082(3) Å, c = 16.965(6) Å, V = 2114.2(14) ų, Z = 8, D _c = 2.012 g cm⁻³. Compound 2 crystallizes in the orthorhombic system, P2₁2₁2₁ space group, a = 7.993(6) Å, b = 7.993(6) Å, c = 10.548(7) Å, V = 673.9(7) ų, Z = 4, D _c = 2.419 g cm⁻³. Both 1 and 2 exhibit different architectures due to their different anions. Compound 1 shows a 2-D graphite-like network structure and 2 shows a 3-D diamond-like network structure.

Keywords:

• 1,3-Imidazolidine-2-thione
• Silver polymers
• Crystal structure

Acknowledgments

We gratefully acknowledge financial support of this work by the National Natural Science Foundation of China (No. 20371007, 20476011, 20771013), Science and Technology Innovation foundation for post-graduate student of Beijing Institute of Technology and Excellent Young Scholars Research Fund of Beijing Institute of Technology (No. 2006Y0715).