Bridged cyclopentadienyl ligands

G. E. Herberich, U. Englert, F. Marken, and P. Hofmann, Triple-Decker Complexes with Bridging Cyclopentadienyl Ligands and Novel Cyclopentadienyl Transfer Reactions,... 

The presence of two bridging cyclopentadienyl ligands stabilizes the Pd2L2 unit. As was already shown in Scheme 6, the reactions of... 

Bridged cyclopentadienyl ligands RCp2, where R = CH2, Me2Si, CH2CH2CH2 have been used to confer stability with respect to redistribution of Cp ligands in the complexes. 

Finally, dinuclear Pd complexes can be prepared, which contain bridging cyclopentadienyl ligands (see Dinuclear Organometallic Cluster Complexes). WheuPdl/j -CsHsK ) -2-MeC3Hs) is reacted with two equivalents of phosphines or phosphites, dinuclear species Pd2(/r-C5H5)(/u,-2-MeC3H5)L2 are formed (equation 50). 

Compounds with Ring-bridged Cyclopentadienyl Ligands 4.01.6.9.1 Lanthanide(n) compounds... 

Compounds with Ring-bridged Cyclopentadienyl Ligands 220... 

Finally, dinuclear Pd complexes can be prepared, which contain bridging cyclopentadienyl ligands see Dinuclear Organometallic Cluster Complexes Pdljj -CsHsXjj ... 

Supramolecular self-assembly via bridging cyclopentadienyl ligands occurs, for example, in the metallocenes [Zn(C5Hs)2] , 86 [84], and [Cd(C5Hs)2] , 87. In the crystalline state these compounds form coordination polymers and dissolve only in strongly coordinating solvents, thereby forming monomeric adducts. From their... 

An unprecedented cyclic structure was found in a rare example of an organo-actinide complex associated via 7r-interactions. The reaction of ThBr4(thf)4 in THF with one equivalent of cyclopentadienyl thallium followed by treatment with three equivalents of KOPr led to the formation of the highly unusual hexanuclear complex [(C5H5)Th2(OPr )v]3, 106 [102]. In the cyclic molecule three dinuclear Th2(OPr )v units are connected by bridging cyclopentadienyl ligands. The... 

The compound [NijCpaJ X- (Figure 9.7d) possessing triple-decker structure with the bridging cyclopentadienyl ligand is formed from biscyclopentadienylnickel and a trityl salt ... 

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