Growth and characterization of thin films prepared from perfluoro-isopropyl-substituted perfluorophthalocyanines

Electrochromic Switching of Evaporated Thin Films of Bulky, Electronic Deficient Metallo-Phthalocyanines

“…Even in solid state F 64 Pc complexes showed absorption spectra (Figure 4) which were just slightly broadened relative to the spectra in solution, but do not show the specific splitting pattern typical of phthalocyanine thin films. 30,36 The lack of optical band splitting in the solid state is consistent The changes observed for the reduction and reoxidation were even more pronounced in measurements at F 64 PcZn in DMF (Figure 3). The spectrum at þ0.2 V vs SCE already showed an increase of the band at 594 nm, characteristic for the ring-reduced species.…”

“…The low intermolecular coupling and the high chemical stability of perfluoroalkyl-substituted phthalocyanines allow the preparation of thin films by physical vapor deposition, a method well suited to obtain homogeneously colored materials of well-defined thickness in the submicrometer range. 30 We report here the solution and solid-state electrochromic reduction of F 64 PcCu and F 64 PcZn analyzed by cyclic voltammetry and spectroelectrochemical measurements. We compare their characteristics with those of F 64 PcVO which we studied separately.…”

Electrochemical and spectral properties of the composites of the alcian blue cationic phthalocyanine and silicododecamolybdate anions

“…Secondly, the wavelength λ max of the dimer component shifted (the bathochro mic shift) to 625 nm; the fraction of the monomer increased. This allows suggesting that the presence of four substituents prevents the phthalocyanine planes from approaching during solidification and thus low ers the fraction of dimers [10].…”

Highly Thermostable, Non‐oxidizable Indium, Gallium, and Aluminium Perfluorophthalocyanines with n‐Type Character

“…For example, the complexes CuPcF 64 ,Z nPcF 64 ,a nd VOPcF 64 exhibit negligible intermolecular coupling in solid thin films and in crystals. [11,12,17] Photostability studies…”

“…[9] We report herein perfluorinated phthalocyaninesw ith the PcF 64 scaffold incorporatingt hree-valentm etals, namely indium, gallium,a nd aluminium.S of ar PcF 64 complexes of zinc, cobalt, copper, magnesium, ruthenium, iron, vanadium oxide (V = O), terbium,a nd lutetium as well as metal-free PcF 64 have been reported. [10][11][12][13][14][15][16][17][18] The presence of as many as 64 fluo-rine atoms per phthalocyanine molecule (MPcF 64 ,i nw hich M = metal) inevitably affects its electronic properties. The eight fluoro substituents attached to the aromatic rings of the phthalocyanine participate in p-back-bonding, whereas the eight perfluoroisopropyl groups (i-C 3 F 7 )a re not conjugated with the aromatic system.F rom the viewpoint of their chemical properties, phthalocyanines with the PcF 64 scaffold resemble Teflon (chemical robustness, resistancet oo xidation and oxygenation,t hermals tability, resistance to photodegradation).…”