Preparation, Structure, Spectral and electrochemical properties of N-phenyl-1,7-disenlena-4-aza-[7]ferrocenophane

N-phenyl-1,7-diselena-4-aza-[7]ferrocenophane (1) has been successfully prepared. The compound has been characterized by¹H NMR spectroscopy, mass spectrum, X-ray crystallography. 1 crystallizes in the orthorhombic space group Ibca, a=0.954 74(2) nm, 6=0.959 58(2) nm, c =7.859 0(2) nm. Unit cell parameter c of 1 is rare in selena-aza macrocycles. 1 displays a red shift of absorption maxima and a selective fluorescence quenching upon addition of Hg²⁺ and Cu²⁺. CCDC: 861107.