Synthesis, Crystal Structure, and Luminescent Properties of Two Ternary Complexes with Mixed Thiocyanate and Quinoline Ligands

Abstract

Two ternary complexes [Cu(NCS)₂(ql)₂] (ql = quinoline) (1) and [Zn(NCS)₂(ql)₂] (2) from SCN⁻ and quinoline were synthesized and characterized by IR, UV, elemental analysis and X-ray crystallography. For two complexes, metal atom occupies a four-coordinated distorted tetrahedral environment bound to N atoms from two NCS⁻ and two quinoline ligands. The molecule is held together with its neighboring ones via π−π stacking interactions to form a 1D structure. The luminescent properties of the complexes 1– 2 at room temperature were investigated.

Keywords:

• crystal structure
• luminescent properties
• ternary complex

This work was supported by the National Natural Science Foundation of China (No. 20701012), the Foundation of Henan Educational Committee of China (No. 2007150003 and 2008B150002) and the Foundation for University Youth Key Teacher of Henan Province of China.

Notes

^a R1 = Σ ‖F _o |–|F _c ||/Σ |F _o |, wR2 = {Σ [w(F _o ²–F _c ²)²]/Σ [w(F _o ²)²]}^1/2.