Figure 4.

Average bond lengths and angles (in Å and °) for the Mo₂LiHC metallacycles of studied complexes. The thick gray lines indicate distances significantly longer than the covalent radii sums. Numbers in boldface highlight the most relevant differences with the corresponding bonding parameters in 4⋅LiCH₂R. The values shown are averages of experimental and calculated values, except for those parameters involving the hydride atom close to the Li atom, for which only calculated data were used.