Fig. 2: Single-crystal X-ray diffraction results of compound 1.

a Molecular structure of compound 1. b Packing of the cluster molecules in the (extended) unit cell. Organic substituents are displayed in wire mode. Heavy atoms are given as thermal displacement ellipsoids with 50% probability. Further images with the full labelling scheme are provided in Supplementary Fig. 15. Selected atomic parameters are given in the text and in Supplementary Table 4.