A Benzaldehyde Derivative as a Chelating Ligand: Helical Manganese(II) Coordination Polymers Assembling into a Porous Solid

Dulcevscaia, Galina; Liu, Shi-Xia; Hauser, Jürg; Krämer, Karl; Frei, Gabriela Claudia; Möller, Andreas; Decurtins, Silvio (2013). A Benzaldehyde Derivative as a Chelating Ligand: Helical Manganese(II) Coordination Polymers Assembling into a Porous Solid. Crystal growth & design, 13(9), pp. 4138-4144. Washington, D.C.: American Chemical Society 10.1021/cg400972k

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A molecular, porous crystalline material constructed
from neutral helical coordination polymers incorporating
manganese(II) ions and two types of bridging ligands, namely the
deprotonated form of 2-hydroxy-5-methoxy-3-nitrobenzaldehyde
(HL) and isobutyrate (iB−), has been obtained and structurally
characterized. Structural analysis reveals that within the
coordination polymer each benzaldehyde derivative ligates two
manganese ions in 6-membered chelating rings, and the
isobutyrate ligands cooperatively chelate either two or three
manganese ions. The solid state assembly of the resulting
polymeric chains of formula [Mn4(L)2(iB)6]n (1), described in
the polar space group R3c, is associated with tubular channels
occupied by MeCN solvent molecules (1·xMeCN; x ≤ 9). TGA
profiles and PXRD measurements demonstrate that the crystallinity of the solid remains intact in its fully desolvated form, and its
stability and crystallinity are ensured up to a temperature of 190 °C. Gas adsorption properties of desolvated crystals were
probed, but no remarkable sorption capacity of N2 and only a limited one for CO2 could be observed. Magnetic susceptibility
data reveal an antiferromagnetic type of coupling between adjacent manganese(II) ions along the helical chains with energy
parameters J1 = −5.9(6) cm−1 and J2 = −1.8(9) cm−1.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)

UniBE Contributor:

Dulcevscaia, Galina, Liu, Shi-Xia, Hauser, Jürg, Krämer, Karl, Frei, Gabriela Claudia, Decurtins, Silvio


500 Science > 540 Chemistry




American Chemical Society




Karl Krämer

Date Deposited:

16 Dec 2013 16:25

Last Modified:

05 Dec 2022 14:26

Publisher DOI:






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