Varying the dimensionality of Cu(II)-based coordination polymers through solvent influence

Kühne, Irina A, Carter, Anthony B, Kostakis, George E, Anson, Christopher E and Powell, Annie K (2020) Varying the dimensionality of Cu(II)-based coordination polymers through solvent influence. Crystals, 10 (10). 893 1-14. ISSN 2073-4352

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This work reports the synthesis and structure of a large porous zeotype network observed within compound (1) using {Cu2(piv)4} as the linking unit (piv = pivalate). The slow in-situ formation of the hmt ligand (hexamethylenetetramine) appears to be key in generating a µ4-briding mode of the hmt-node. Attempts to improve the low yield of compound (1) using different solvent layer diffusion methods resulted in the µ3-hmt complexes (2) and (3). Both compounds exhibit a 3D network of two intertwined chiral networks. Strong hydrogen bonding present in (3) leads to the formation of intertwined DNA-like double-helix structures. The use of bulky solvents in the synthesis of compound (4) leads to the structure crystallizing solvent-free. The packing of (4) is dominated by energy minimization which is achieved when the 1D-“cylinders” pack into the closest possible arrangement. This work highlights the potential for solvent controlled synthesis of extended copper-hmt systems.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 30 Sep 2020 07:16
Last Modified: 06 Oct 2020 13:15

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