inorganic chemistry

N

+

R^2

R^1 = H R^2 = H

R^1 = OCH 3 R^2 = CF 3

R^1 = CH 3

R^1 = CF 3

R^1

Monomers

in organic solvents

Oligomers

in diluted water solutions

Supramolecular polyelectrolytes

in concentrated water solutions

High

concentration

N

Cl– 1 / 2 SO 4 2–

C

N

+

Pt Pt Pt

Pt

Pt

Pt Pt Pt

Pt

Pt

Pt

PtPt

PtPt

PtPt Pt Pt Pt Pt Pt Pt

Pt Pt Pt Pt Pt Pt

Pt Pt Pt Pt Pt Pt

Pt

Pt

• Pt – C

N

N

N

C – Pt – C

N

C

Cl–

N

N

+

• Pt – C

FIG. 13. Self-assembly of ionic Pt(II) complexes in aqueous
environments. Reproduced with the permission of Wiley-VCH ( 215 ).

• 
  


• 
  
  
  
  • 
    
  
  
  
  

+

+ + + +

+++

• 
  


• 
  

  ++

  
  

• 
  

• 
  


• 
  


• 
  

N PtN N

C

O

+

H 3 C

NN

NN

PF 6

O

H 3 C

H 3 C

CH 3 CCH 3

PF 6

Pt

ClCClCCCl

C

C

N

C C C

O

III

OO O

Cl

Cl Cl

C

Pt

Pt

Pt

Pt Pt Pt Pt Pt Pt

PtPtPtPtPtPtPt

Pt

Cl

CH 3

CH 3

CH 3

OIII IIIO

IIIO

IIIO

III

PF 6

CH 3 CN, H 2 O

CHPF^6

3 CN, H 2 O

PF 6

CH 3 CN, H 2 O

PF^6

CH^3

CN, H

2 O

CH 3 CN, H 2 O

PF 6

CO

N

Pt

CI

CIII

N

+++ +

+

C

CI

Cl CClC

PtPtPtPtPtPtPt

CH 3

OIII IIIO

IIIO

C

Pt

IIIO

CIII

N

100 nm 200 nm 300 nm

FIG. 14. Assembly of neutral and cationic Pt(II) complexes into lin-
ear filaments undergoing a wire-to-wheel metamorphism. SEM micro-
graphs are shown on the bottom. Reproduced with the permission of
Wiley-VCH ( 216 ).

76 CRISTIAN A. STRASSERTet al.