"' Armilenium "'is a C 11 H 11 cation and is the first entirely organic sandwich compound.
12.
A zero molecular dipole moment and IR spectroscopy revealed that it was also a sandwich compound with uranium in a tetrahedral molecular geometry.
13.
Compounds of this type react in many different ways, for instance alkylation at uranium with organolithium reagents or conversion to hybrid sandwich compounds.
14.
For example, the Cp manganese tricarbonyl complex is a half sandwich compound, with one face of the Cp ligand binding to the metal atom.
15.
On the other hand, ZnMe 2 gives only the half-sandwich compound [ ( ? 5-C 5 Me 5 ) ZnMe ].
16.
Other organouranium compounds are inverted uranocenes with a COT ligand in between two uranium atoms or uranium sandwich compounds with pentalenide ligands instead of COT ligands.
17.
MMT is a so-called half-sandwich compound, or more specifically a piano-stool complex ( since the three CO ligands are like the legs of a piano stool ).
18.
"' Chloro ( cyclopentadienyl ) bis ( triphenylphosphine ) ruthenium "'is the organoruthenium half-sandwich compound with formula RuCl ( PPh 3 ) 2 ( C 5 H 5 ).
19.
In it the U-Cl bond is an ionic bond and the uranium bonds with the three cyclopentadienyl ligands are covalent of the type found in sandwich compounds with involvement of the uranium 5f atomic orbitals.
20.
This dimerisation process has the overall effect of decreasing the half-sandwich compounds are pentahapto ligands, hence the formula [ Rh ( ? 5-C 5 H 5 ) 2 ] for the rhodocene monomer.
