Table 2. Bond distance (Å) ranges for Yb⋯Cp′(centroid) and bond angle (°) ranges for Cp′(centroid)⋯Yb⋯Cp′(centroid) in Cp′₃Yb (Fieser et al., 2015 ▸), [K(crypt)][Cp′₃Yb] (Fieser et al., 2015 ▸), and [(THF)Cs(μ-η⁵:η⁵-Cp′)₃Yb]_n .

	Cp′3Yb	[K(crypt)][Cp′3Yb]	1
Yb⋯Cp′(centroid)	2.363–2.368	2.503–2.513	2.504 (1)–2.513 (2)
Cs⋯Cp′(centroid)			3.159 (1)–3.268 (2)
Cp′⋯Yb⋯Cp′	118.85–120.55	118.10–122.93	116.64–122.76
Cp′⋯Cs⋯Cp′			109.0–121.4