Novel Biscapped and Monocapped Tris(dioxime) Mn(II) Complexes: X-ray Crystal Structure of the First Cationic Tris(dioxime) Mn(II) Complex [Mn(CDOH)3BPh]OH (CDOH2 = 1,2-cyclohexanedione dioxime)

摘要: This report describes the synthesis and characterization of a series novel biscapped monocapped tris(dioxime) Mn(II) complexes [Mn(dioxime)3(BR)2] [Mn(dioxime)3BR]+ (dioxime = cyclohexanedione dioxime (CDOH2) 1,2-dimethylglyoxyl (DMGH2); R Me, n-Bu, Ph). All have been characterized by elemental analysis, IR, UV/vis, cyclic voltammetry, ESI-MS, and, in cases [Mn(CDOH)3BPh]OH·CHCl3 [Mn(CDO)(CDOH)2(BBu(OC2H5))2], X-ray crystallography. It was found that are not stable presence water readily hydrolyze to form cationic [M(dioxime)3BR]+. instability is most likely caused mismatch between size coordination cavity ligands. In contrast, [M(dioxime)3BR]+ very aqueous solution even PDTA (1,2-diaminopropane-N,N,N‘,N‘-tetraacetic acid) because of...