Monomeric phthalocyaninato complex

Monomeric Phthalocyaninato Rare Earth Complex Sm2P-2Pc(dpm)4... 

M = Tb, Lu) into organic thin-film transistors by LB technique and reported their field effect mobility, which represented the first report for p-type OFETs based on bis(phthalocyaninato) rare earth complexes prepared via LB method [88], Due to the highly ordered molecular arrangement of M(Pc)[Pc(OC8Hi7)g] (M = Tb, Lu) in LB films and the appropriate HOMO energy level of these double-deckers relative to the Au source-drain electrodes, the OFETs reported in that work exhibited higher hole transfer mobility of 1.7 x 10-3 cm2 V-1 s-1 in comparison with those fabricated from monomeric phthalocyanine LB films. 

Indium(III) phthalocyanine complexes show a rich structural diversity. Compounds like PcInI are monomeric, with a five-coordinate, square-pyramidal geometry at indium. The indium atom is located out of the N4 plane, and the phthalocyaninato ring forms a dome shape.In general. 

Kirin et al. (1965, 1967) and Kirin and Moskalev (1971) employed rare-earth acetates as the starting materials to prepare metal phthalocyaninates. It was demonstrated that apart from the monomeric half-sandwich complexes, the reactions also gave bis(phthalocyaninato) sandwich complexes, both of which remained poorly characterized at that time. These half-sandwich compounds are susceptible to de-complexation giving metal-free H2(Pc) upon heating in o-bromonaphthalene or treatment with concentrated sulfuric acid (Shklover and Plyushchev 1964). When a DMF solution of R(Pc)Cl is treated with NH4OH, R(Pc)(0H)-H20 is formed which is thermally unstable. Upon heating to 240°C, this compound converts to the dimeric species [R(Pc)]20 (Ni et al. 1987). 

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