Family of Isoreticular Chiral Metal-Organic Frameworks Based on Coordination and Hydrogen Bonds in [M[Co(ethylenediamine)(oxalato)2]2]
Journal article, 2010

From the parent compound [Ca[Co(ethylenediamine)(oxalato)2]2]n . 4H2O, 1, a series of framework compounds was prepared via the soluble sodium salt and crystal growth with the divalent metal ions Cd2+, Mn2+, and Sr2+, (2-4). These compounds have the same general formula [M[Co(ethylenediamine)(oxalato)2]2]n . xH2O, and they all form the same four- and eight-connected 3D net having scu topology (and are thus isoreticular) with water filled channels of variable size running in one direction of the crystals. However, they crystallize in two different space groups, the chiral P21) (3, 4, and the low temperature form of 1) and the noncentrosymmetric P-4 (1 and 2). The potential voids upon water removal are 18-20% of the unit cell. Preliminary gas sorption measurements at 298 K and 8 bar show substantial CO2 and N2O uptake (12-14% and 15-16% by mass, respectively), while the H2 uptake was 0.18%, a relatively high value considering the low pressure and high temperature.


3-Periodic Nets


Inorganic 3D Networks



Cambridge Structural Database





Cédric Borel

Chalmers, Chemical and Biological Engineering, Physical Chemistry

K. Davies

University of Cape Town

P. Handa


Gustav Hedberg

Chalmers, Chemical and Biological Engineering

C. L. Oliver

University of Cape Town

S. A. Bourne

University of Cape Town

Mikael Håkansson

University of Gothenburg

Vratislav Langer

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Lars Öhrström

Chalmers, Chemical and Biological Engineering, Physical Chemistry

Crystal Growth & Design

1528-7483 (ISSN) 1528-7505 (eISSN)

Vol. 10 4 1971-1978

Subject Categories

Inorganic Chemistry


Basic sciences

Areas of Advance

Materials Science



More information

Latest update