Abstract
A novel manganese(II) complex has been constructed for the first time from the salamo ligand H2L containing a single N2O2 inner pocket. A binuclear structure was observed using single-crystal X-diffraction, with phenol oxygen atoms in the inner pocket effectively participating in the coordination through bridging, and the crystal structure is [Mn2(L)2(CH3OH)2]. The manganese(II) complex appears to have a CDT antimicrobial effect in that it catalyzes the release of ·OH from H2O2, thereby preventing the growth of Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative), and also effectively prevents the formation of bacterial biofilms. This can be observed by fluorograms of live and dead bacteria stained. The presence of this reaction was also confirmed by the detection of methyl bromide depletion by UV spectroscopy.
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