Moreover, this also implies, that even if [Zn(OSi≡)2] sites were generated from ZnEt2, the method of sequential additions could not be used because as soon as any SnMe3Cl Ph3SbCl2 (25A/25B) was selected as an interesting antimony(V) precursor for computational screening because the obvious candidate, SbCl5 is unsuitable for several reasons. First, our recent work showed that fitting four CUBEs around an Al 3+ center is strongly disfavored. moiety in an equatorial plane between them. Our calculations showed that this precursor is even slightly less exoergic than SbCl3, with ΔG 298.15 of at most -30 and as little as -17 kJ mol -1 , making its irreversibility questionable.