Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells

Crystal structure of 2,3-dicyano-1,4-phenylene bis(trifluoromethanesulfonate), C10H2F6N2O6S2

“…Our title compound found use in the synthesis of liquid crystalline benzoporphyrin derivatives showing interesting optical and photoconductive properties and application in organic semiconductors for photovoltaic cells [10]. It is also one of the components in the synthesis of Zn-thio-Pc based dye sensitized solar cells and Zn-amide-Pc based photosensitizers [11]. Several researchers have synthesizedthe titlecompoundbyfollowing different synthetic procedures [9][10][11][12][13].…”

“…It is also one of the components in the synthesis of Zn-thio-Pc based dye sensitized solar cells and Zn-amide-Pc based photosensitizers [11]. Several researchers have synthesizedthe titlecompoundbyfollowing different synthetic procedures [9][10][11][12][13]. To the best of our knowledge, the title compound is only the second crystal structure to be reported in the family of dicyano-disulfonate compounds.…”

Optical and Electrochemical Properties of Non-Peripheral Thioaryl-Substituted Subphthalocyanine as Precursors for Dye-Sensitizer to Develop Photovoltaic Cells

“…The Q band of synthesized hexakis(thiophenylmethyl)phthalocyanine is showed shorter wavelength by 42 nm in comparison with non-peripheral substituted octakis(thiophenylmethyl)phthalocyanine, which appeared at 815 nm [5]. Singh and his co-workers reported that that unsymmetric phthalocyanines prepared with stoichiometric mixture of raw materials appeared at 750 nm [24], which means that the Q band depends upon the electron distribution caused by number of substitution. The ring enlargement technique is suitable for the synthesis of unsymmetric 3:1 type phthalocyanine.…”

“…The strongest absorption of phthalocyanines in the visible region called the Q band can be moved by red shift through introduction of an electron-donating substituent at a peripheral (2,3,9,10,16,17,23,24) position [18]. Then, the non-peripheral (1,4,8,11,15,18,22,25) substituted phthalocyanines can show a bathochromic effect in comparison with the peripheral position [4] [19].…”

Metal-free phthalocyanine aggregation and binding with amines: Specific and general solvent effects on absorption and fluorescence properties

“…Pc materials are used as photosensitizers in photodynamic therapy of Tumor (PDT) [6][7][8][9][10][11][12], electron donor/acceptors in dye-sensitized solar cells (DSSC) [13][14][15][16], nonlinear optical materials for preventing laser weapons [17][18][19], catalysts in industry [20][21][22], liquid crystals in display devices [23][24][25], and photoconductors in copy machines and laser printers [6,26,27].…”