|The elusive crystals of calcium acetate hemihydrate: chiral rods linked by parallel hydrophilic strips
Brendan F Abrahams, Christopher J Commons, Timothy A Hudson, Robin W Sanchez Arlt
CRYSTENGCOMM | ROYAL SOC CHEMISTRY | Published : 2021
Calcium acetate hemihydrate is found in the efflorescent salts that form on pottery and other calcareous heritage artefacts. The formation of these salts can lead to deterioration of these objects. A recent analysis of the structure of Ca(OAc)2·½H2O by X-ray powder diffraction (XRPD) has revealed it has a remarkable and surprisingly complex structure. Although the compound usually exists in powder or microcrystalline form, often in mixtures with other salts, we have serendipitously managed to grow crystals of a size suitable for single crystal X-ray diffraction. Our single crystal data show the structure is based on infinite supramolecular polymeric rods that are chiral. Each rod has a minim..View full abstract
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Awarded by Australian Research Council
We gratefully acknowledge the financial support of the Australian Research Council (DP180101413).