A unique supramolecular sandwich structure of a tetrabromocatechol-chelated iron (III) complex: Mutual reinforcement of H-bonding and pi center dot center dot center dot pi stacking interactions in the crystal lattice

作者：Panja Anangamohan^*

来源：Inorganic Chemistry Communications, 2013, 32: 42-46.

DOI：10.1016/j.inoche.2013.03.019

• Tetrabromocatechol
• Iron(III) sandwich complex
• pi-pi stacking interaction
• H-bonding interaction
• Electrochemistry

A unique supramolecular sandwich structure of a tetrabromocatecholate chelated mononuclear iron(III) complex, [H(3)ntb](2)[Fe(Br(4)Cat)(3)[(ClO4)(3)center dot 4CH(3)OH center dot 4H(2)O (1) [ntb = tris(2-benzimidazolylmethyl)amine and Br(4)CatH(2) = tetrabromocatechol], is reported. The most interesting feature of the crystal structure of 1 is that the central [Fe(Br4Cat)3]3 anion is sandwiched by the triply-protonated two ntb ligands in which mutual reinforcement of the pi center dot center dot center dot pi stacking and hydrogen bonding interactions play significant role to stabilize the structural motif. Electrochemical studies disclose both the noninnocent ligand and metal based redox processes.

• 出版日期2013-6