Table 3.

Calculated complexation energies E and G ²⁹⁸ between trimethylamine borane and magnesocenophanes 1 a–d (Figure 7, right).

Compound	E[a]	[n][b]	E [kJ mol−1]	G 298 [kJ mol−1]
1 a	C	1	−81.4	−32.7
1 b	Si	1	−64.5	−16.7
1 c	C	2	−51.6	−3.0
1 d	Si	2	−30.9	+15.1

[a] E=bridging atom(s) of ansa bridge; [b] n=number of bridging atom(s) in ansa bridge.