. The importance of low-dimensionality can also been seen in the reduction in the apparent size of the Cr 2+ ordered moment determined via neutron diffraction. The low-dimensionality of the structure can reduce the refined moment through disorder, both static short-chain defects and stacking faults and dynamic zero-point fluctuations . Additionally, as is common in many metal organic magnets, there is appreciable delocalisation of the spin-density onto the ligands, which Mulliken analysis of the DFT-derived electron density suggests is approximately 10%. These factors in combination explain the substantial reduction in the ordered moment (approximately one-third) from that expected moment size, though it is challenging to evaluate their relative contributions.