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Isoamyl­cobalamin–acetone–water (1/0.385/12.650)

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The title compound, [Co(C5H11)(C62H88N13O14P)]·0.385C3H6O·12.650H2O, contains the isoamyl (3-methyl­butyl) anion bonded to the CoIII ion through a C atom. The compound is thus a structural analog of the two biologically important vitamin B12 coenzymes adenosyl­cobalamin and methyl­cobalamin. The lower axial Co—N bond length [2.277 (2) Å] is one of the longest ever reported for a cobalamin and reflects the strong -donor ability of the isoamyl group.

Document Type: Research Article


Publication date: April 1, 2004

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