Terminal hydroxo ligands

Iron(II) complex of tris(N -tert-butylurea-ylato)-N-ethylene]aminato activates dioxygen at room temperature to afford an iron(III) complex containing a single terminal oxo ligand. X-ray structures show that the three urea molecules act as a tridentate N,N,N-hgand [52]. The tripodal ligand was also used to synthesise complexes of cobalt, iron or zinc with terminal hydroxo ligands (Scheme 8) [53]. 

Figure 2.18 Complexes with terminal hydroxo ligands.

Several Ti complexes containing terminal or bridging hydroxo ligands have... 

There exists only one example of a lanthanide complex where a hydroxo ligand is terminally coordinated [100], The crystal structure of Sm(Tp )2(OH)... 

The bridging OH groups are called of in order to distinguish them from terminal hydroxo ligands [10,(1]. The reaction leading to the formation of a hydroxo bridge is called olation . 

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