A series of sandwich compounds of transition metals (M=Ni, Fe, Cr) with cyclic hydrocarbon (M(CH)(n)) and borane (M(BH(2))(n)), ligands (including mixed hydrocarbon/borane sandwiches) has been studied using density functional theory (B3LYP/6-311+G(df,p)). Multicenter bonding between the central metal atom and basal cycloborane rings provides stabilization to planar cycloborane species. Large ne...

The study of conformational equilibria and equilibration by nuclear 111agnet£c resonance in cyclic co111pou11ds has been found lo be considerably facilitated by use of 19 F spectra of gemfluoro derivatives. R esults obtained zcith cyclohexane, cis-decali11, and cyclohepta11e ring systems were re·vieu·ed zcith particular emphasis on the degree with which conclusions drawn might also be applicabl...

The addition of partially dehydroxylated silica (PDS) to a solution of the Wilkinson WMe6 as well as the Schrock W neopentylidyne tris neopentyl complex catalyzes linear or cyclic alkanes to produce respectively a distribution of linear alkanes from methane up to triacontane or a mixture of cyclic and macrocyclic hydrocarbons. This single catalytic system transforms also linear α-olefins into h...