Phthalocyanine, main-chain

Recently, Shirai and Hojo25) have reported the synthesis of the soluble coordinate polymers containing metal-phthalocyanines in the main chain according to Scheme 2 (Eq. 7). The polymers obtained by polycondensation of metal-phthalocyanines bearing peripheral carboxy groups attached to various aromatics, -QH4-, -CsHr-CHz-CgH, exhibit higher conductivities (10-11 10-6 Q cm-1) than the corresponding monomer complexes. 

A connectivity of 1 is given for side chain metal-containing polymers as 1 in which the metal complex is connected via one bond to the main chain [11]. Additional examples for other connectivities are (Fig. 1-8) connectivity 2 in metal(yne)s 2 [12] connectivity 3 in arsenic(III) sulfide 3 connectivity 4 in a polymeric methyl rhenium oxide of the formula Ho.5[(CH3)o.92Re03] co 4 [13] or polymeric phthalocyanines 5 [14] connectivity 8 in lanthanide complexes of bis(tetradendate) Schiff base bridging ligands 6 [15]. 

Poly(AIPc-F) Poly(SiPc-O) Main chain metallized phthalocyanine (Pc) polymers electron microscopy and electron diffraction both AlPc and SiPc are cofacial. [169]... 

Poly[(SiPc)-0] Poly[(SiPc)-0-(CH2)4-Si(C6H5)2-(CH2)4-0] Poly[(SiPc)-0-(CH2)4-Si(CH3)2-C6H4-Si(CH3)2- (CH2)4-0] Poly[(SiPc)-0-(CH2)4-Si(CH3)2-(0-Si(CH3)2)4- Main chain Pc polymers symmetric and unsymmetric alkyl substituted Si phthalocyanines absorption and emission spectroscopy, optical properties, cyclicvoltammetry are discussed in terms of packing and interactions of phthalocyanines. [172]... 

Because of the fascination of synthetic organic chemists and molecular electronics device designers with ever-increasing charge mobilities, attention was focussed mainly on the magnitude of the end-of-pulse conductivity of PR-TRMC transients. Because of this, the after-pulse decay kinetics in discotic materials received only scant attention. The dramatic influence of the nature of the peripheral chains on the lifetime of the PR-TRMC conductivity transients, was in fact demonstrated early-on for octa-alkoxy phthalocyanine derivatives as mentioned previously in this section. This effect is illustrated with more recent data for some hexa-alkyl HBC derivatives in Fig. 7. 

Metal-bearing or metal-free phthalocyanines and tetraazaannulenes can be partially oxidized with iodine vapor or in solution . Substituted porphyrins may be partially oxidized with iodine . Phthalocyanines have also been prepared containing a group IIIB (e.g., Al) or group IVB (e.g., Si) main group atom that is part of an Si-O or Al-F covalent polymer. The later materials do not possess a chain of metal atoms however, they are structurally similar and exhibit similar physical properties . Except for the bisglyoximato complexes, the iodine partially oxidized substances are only poorly characterized. 

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