Synthesis, Crystal Structure of a Novel Mn Complex with Nicotinoyl-Glycine

Abstract

A novel manganese complex, C 16 H 26 MnN 4 O 12 , was synthesized by the reaction of nicotinoyl-glycine and NaOH in an ethanol/water solution and structurally characterized by elemental analysis, UV-vis spectrum, IR spectrum and single-crystal X-ray diffraction analysis. The crystal of the complex belongs to the triclinic space group P 1 with a = 7.8192(16) Å, b = 8.8800(18) Å, c = 9.0142(18) Å, α = 83.14(3) • , β = 65.27(3) • , γ = 81.67(3) • , V = 516.3(2) Å 3 , Z = 1, Dx = 1.542 mg·m −3 , µ = 0.66 mm −1 , F(000) = 271, and final R 1 = 0.0381, ωR 2 = 0.0964. The nicotinoyl-glycine ligand acts as a bridging ligand to connect the manganese ions by the hydrogen interactions; thus, the complex expands into a 3D supramolecular net structure.

Synthesis, Crystal Structure, and Fluorescent Property of a Zn(II) Complex with N-Nicotinoylglycine Ligand

“…From Figure 1, it can be seen that the Zn(II) ion is six-coordinated by the pyridine-N atoms of two N-nicotinoylglycine anion ligands and by four O atoms of water molecules, thus adopting an octahedral coordination geometry. The COO-groups of N-nicotinoylglycine ligand does not coordinate with Zn(II) ion, and the coordination environment in complex 1 is the same as that reported in literature for the nicotinoyl-glycine Mn(II) complex [21]. Complex 1 is linked by O-H···O hydrogen bonds to form 1D chained structure (Figure 2).…”