Chemistry Reference
In-Depth Information
(diastereo-)selective formation of triple-stranded dinuclear helicates
68
69
70
71
(diastereo-)selective formation of tetranuclear clusters
Figure 4.31 Bis(catecholate) ligands 68-71 and their self-assembly behaviour upon coordi-
nation towards trivalent metal ions like gallium(III).
72
72
M
4
[Ti
2
(
72
)
3
]
Figure 4.32 Bis(catecholate) ligand 72 and its diastereoselective self-assembly behaviour
upon coordination towards titanium(IV) ions (X-ray crystal structure analysis, H-atoms, solvent
molecules, and counter ions omitted).
Ph
OH
O
H
OH
OH
HO
OH
H
N
O
Ph
O
O
O
NH
HO
OH
73
74
Figure 4.33 Bis(catecholate) ligand 73 and tetrol ligand 74.
Search WWH ::
Custom Search