The role of pi-pi stacking in stabilizing a,a-trans-cyclohexane-1,4-dicarboxylatein a 2D Co(II) network

A hydrothermally synthesized coordination network, (2)(infinity)[Co-4(e,e-trans-1,4-chdc)(3)(a,a-trans-1,4-chdc)(phen)(4)] (1,4-chdc: cyclohexane-1,4-dicarboxylate, phen: 1,10-phenanthroline), features 1,4-chdc in its rare a,a-trans conformation.