Fig. 2: Crystal structure and metal-atom composition of [{IMesCo}2(µ,η5:η5-Bi5)] (1).
From: Isolation of a planar π-aromatic Bi5− ring in a cobalt-based inverse-sandwich-type complex
a, The molecular structure of 1 from a side view onto the Co···{Bi5}···Co pentagonal bipyramid indicating the colour code used for the atom types. H atoms are not shown for clarity. Selected atomic parameters are given in the text. b, The molecular structure of 1 from a top view onto the {Bi5} moiety. c, The unit cell plot of 1 viewed down the crystallographic c axis. The channels running along the c axis at ¼, ¼, z and ¾, ¾, z do not contain any electron density beside the H atoms at the IMes ligand. d, A µ-XRF spectrum recorded on single crystals of 1 (see light-microscopic image in the inset) with the results of the deconvolution algorithm given in counts per second (cps) versus energy (E), indicating the perfect match of the calculated (calc.) and observed (exp.) compositions. The colour code refers to the colours used in the crystal-structure figures: Bi (blue) and Co (turquoise).
