Synthesis, crystal structure and magnetic property of 30-membered decanuclear manganese metallacrown with N-cyclohexanoylsalicylhydrazide ligand

Publication date: Available online 21 October 2019Source: Inorganic Chemistry CommunicationsAuthor(s): Kangkai Du, Shi-Xiong Liu, Bizhou LinAbstractPentadentate ligand, N-cyclohexanoylsalicylhydrazide (H3chxshz) (1), and its self-assembled 30-metallacrown-10, [Mn10(C14H15N2O3)10(CH3OH)10]·16CH3OH (2), have been synthesized. Ten manganese (III) ions and ten deprotonated ligands (chxshz3-) construct a 30-membered ring based on the M-N-N-M linkage in the novel decanuclear manganese(III) metallamacrocycle 2. The chiralities of Mn atoms in the diaza-bridged ring are in alternating Λ and Δ configurations. The magnetic property of the title 30-metallacrown-10 shows a weak antiferromagnetic exchange interaction with an observed μeff of 14.93 μB at 300 K.Graphical abstract

Source: Inorganic Chemistry Communications - October 22, 2019 Category: Chemistry Source Type: research