Chemistry Reference
In-Depth Information
Figure 4.5
Feasible ways to form fi nite architectures (triangles, squares, hexagons) using
ditopic ligands (O) and metal ions (M)
4.2.1 Triangles
Purines
A molecular triangle has recently been synthesized by Lippert
et al.
3a
in a self-
assembly process of the metallo fragment
trans
- [(NH
3
)
2
Pt(Pu - N7)(H
2
O)]
2+
(Pu = 9 -
methylpurine), previously formed by reacting
trans
- [(NH
3
)
2
Pt(OH)Cl] with
9-methylpurine followed by halide abstraction with AgNO
3
.
1
H NMR reveals that
although
trans
- [(NH
3
)
2
Pt(Pu - N7)(H
2
O)]
2+
is formed initially, this subsequently
