Rhodium phthalocyanine preparation

Rhodium phthalocyaninates - Well-defined rhodium(III) phthalocyanines RhX(PcXMeOH) (X = Cl, Br, I) with halide and methanol as axial ligands were prepared for photochemical investigations [118]. 

For the insertion of noble metal ions into phthalocyanine H2(Pc), the latter is favorably activated by transformation into its lithium derivative. Thus, reaction of Li2(Pc) with [Rh(COD)Cl]2 in a large excess of a donor solvent L yielded the Rh(II) complexes, Rh(Pc) L2 (L = Py, BuNH2, Bipy, Pyz) [119]. The formation of these Rh(II) species is very remarkable because Rh insertions normally yield either Rh(I) or Rh(III) derivatives. Recently, tris(ethylenediamine)-rhodium(III) iodide [Rh(en)3]I3 and phthalodinitrile have been used to prepare H [RhI2(Pc)] 2phthalodinitrile. This material was then transformed into [Rh(OH)2(Pc)] by treatment with first H2SQ4 and then KOH. Treatment of... 

Chlororhodium(III) phthalocyanine is prepared from rhodium trichloride and phthalonitrile (28, 160). It is stable in concentrated sulfuric acid and may be precipitated therefrom as the bisulfate. The oxidation state of the metal was proved by quantitative oxidation (28). Bisulfato-rhodium(III) phthalocyanine is reasonably soluble in common organic solvents. 

Photoconductivity has also been detected in polymers prepared by glow-discharge polymerization of tetramethylsilane, tetramethyltin and tetramethylgermanium [85], polymers of copper phthalocyanine [86] and rhodium(i) aryldiisocyanide polymers [87]. 

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