Td. Mcgrath et al., MACROPOLYHEDRAL BORON-CONTAINING CLUSTER CHEMISTRY - CHARACTERIZATIONOF RIGID 77-ATOM [PT(B18H20)(2)](2-) DIANION ISOMERS AND AN UNUSUAL METALLABORANE HEMOPHILIC INTERACTION, Journal of the Chemical Society. Dalton transactions, (15), 1997, pp. 2543-2545
Reaction of [Pt(cod)Cl-2] (cod = cycloocta-1,5-diene) with [NEt4](2)[a
nti-B18H20] or with [syn-B18H22] and tmnda (tmnda = N,N,N',N'-tetramet
hylnaphthalene-1,8-diamine) resulted in the generation of [Pt(anti-B18
H20)(2)](2-) or [Pt(syn-B18H20)(2)](2-) dianions, for which intramolec
ular steric crowding imposes rigid slab structures, and which have unu
sual intimately packed anion-layer structures in their salts in the so
lid state.