Pt/Pd–Ethynyl Bond Containing Fluorescent Molecular Architectures as Sensors for Nitroaromatics - Molecular Self-Assembly: Advances and Applications - page 273

Scheme 9.8 Self-assembly of trigonal prisms 17 , 18 , 21 .

9.3.2 Molecular Prisms From 4,4 ¢ ,4 ¢¢ -Tris[(Ethynyl- Trans -

Pt(PEt 3 ) 2 (NO 3 )]Triphenylamine Acceptor (14)

9.3.2.1 Synthesis of the Pt 3 Acceptor 14
Synthesis of the Pt

¢ ¢¢

planar organometallic acceptor 4,4 ,4 -

3

tris[(ethynyl- trans -Pt(PEt ) (NO )]triphenylamine 14 was

3 2 3

reported by our group [14]. Acceptor was prepared from tris(4-

bromophenyl)amine as a halogenated aromatic compound. Scheme
9.9 shows the synthesis of this tridentate acceptor.
The ethynyl functionality was introduced to make the acceptor
rigid and planar, and additionally to make it fluorescent as it
has been reported that compounds containing Pt-ethynyl group
are luminescent/fluorescent [24,33-36]. The acceptor

14

14 was

1 31

P NMR spectroscopy and the
structure of the iodide form of the linker was conclusively determined
by X-ray crystallographic study (Fig. 9.9).

characterized by H (Fig. 9.9) and