Synthesis, X-ray structural characterization, and catalytic property of an end-to-end azido-bridged polymeric manganese(III) complex derived from N,N′-bis(5-fluorosalicylidene)-1,2-diaminoethane

ABSTRACT

A new end-to-end azido-bridged polymeric manganese(III) complex [MnL(μ_1,3-N₃)]_n with the Schiff base ligand N,N′-bis(5-fluorosalicylidene)-1,2-diaminoethane (H₂L), has been synthesized and structurally characterized by physicochemical methods and single-crystal X-ray determination. Crystal of the complex crystallizes in orthorhombic space group Pca2₁, with a = 10.8211(5), b = 13.4644(6), c = 11.1811(5) Å, V = 1629.08(13) ų, Z = 4, R₁ = 0.0255, wR₂ = 0.0653, GOOF = 1.053. X-ray analysis indicates that the complex is an end-to-end azido-bridged polymeric manganese species. The Mn atom is coordinated in an octahedral coordination by two phenolate O and two imine N atoms from the Schiff base ligand, and two azido N atoms. The catalytic property for epoxidation of styrene by the complex was evaluated.

KEYWORDS:

• Manganese complex
• Schiff base ligand
• azide ligand
• crystal structure
• catalytic property

Funding

This project was supported by Scientific and Technological Research Program of Chongqing Municipal Education Commission (Grant No. KJ1401025), Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir (Chongqing Three Georges University) (Grant No. 0969802), and the Youth Foundation of Three Georges University (13QN13).