A homochiral coordination polymer of cobalt(II) and l-serine

A one-dimensional chiral cobalt(II) coordination polymer, namely, catena-poly[[[(S)-2-amino-3-hydroxypropanoato- κ 2N,O1]cobalt(II)]- μ -(S)-2-amino-3-hydroxypropanoato- κ 4O1,O3:N,O1 ′ ], [Co(C3H6NO3)2]n or Δ -[Co(l-Ser- κ 2N,O)2]n (l-Ser   = l-serine) (1), has been synthesized and characterized using elemental and thermal analyses, IR spectroscopy and single-crystal and powder X-ray diffraction techniques. The asymmetric unit of 1 consists of two serine anions which are coordinated to a Co2+ ion to give three chelate rings. These extend the structure into a helical chain with pendant chelate rings which participate in interchain hydrogen bonding. The ability of 1 to undergo transmetallation was evaluated. Among a range of divalent metal ions, only copper(II) partially replaced cobalt(II).

Source: Acta Crystallographica Section C - November 5, 2021 Category: Chemistry Authors: Dzesse T., C.N. Majoumo-Mbe, F. Nfor, E.N. Bourne, S.A. Tags: coordination polymer amino acid serine cobalt crystal structure transmetallation research papers Source Type: research