Comparable optical properties and dispersion parameters of monomeric axial ruthenium phthalocyanine thin films

Youssef, Tamer E.; El-Nahass, M.M.; El-Zaidia, E.F.M.

doi:10.1016/j.jlumin.2013.01.026

Cited by 19 publications

(4 citation statements)

References 39 publications

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“…The refractive indices of[1a][FSA] at 20 °C, 30 °C, and 40 °C were 1.540, 1.537, and 1.534, respectively; this inverse relationship between temperature and refractive index was ascribed to thermal expansion. The values, which are similar to those of other ruthenium complexes,23,24 are relatively low despite the fact that these complexes each possess a heavy atom at their center. FSA] measured at 30 °C and 40 °C were equal (0.54), and the solvent polarity parameter at 20 °C could not be obtained due to crystallization.…”

supporting

confidence: 72%

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)

2015

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A series of ionic liquids containing cationic ruthenium complexes ([Ru(C5H5)(C6H5R)](+)) were prepared, and their thermal properties were investigated (R = C4H9 (1a), C8H17 (1b), OCH2OCH3 (2a), O(CH2CH2O)2CH3 (2b), O(CH2)3CN (3a), O(CH2)6CN (3b), CO(CH2)2CH3 (4a), CO(CH2)6CH3 (4b)). Bis(trifluoromethanesulfonyl)amide (TFSA) and bis(fluorosulfonyl)amide (FSA) were used as counter anions. These ionic liquids were colorless and stable toward air and light. These salts exhibited glass transitions upon cooling from the melt (Tg = −82 °C to −55 °C), and the glass transition temperatures of the salts increased as the polarity of the substituents increased (alkyl < ether < cyano < carbonyl). The decomposition temperatures decreased in the order of alkyl > cyano > carbonyl > ether. The viscosities, solvent polarities, and refractive indices of the salts of 1a and 2a were also evaluated. Hexafluorophosphate (PF6) salts were also prepared, which were solids with high melting points (Tm = 65–127 °C). X-ray crystal structure analyses of these salts revealed the importance of intermolecular contacts involving the ring hydrogens. The PF6 salt of 2a exhibited an order–disorder phase transition.

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supporting

confidence: 72%

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)

2015

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“…While the imaginary part is mainly dependent on value, where k is related to the absorption coefficient. Consequently, describes how the dielectric absorbs energy from an electric field owing to the dipole motion [31]. The variation of and depending on the photon energy hυ for the as-deposited and -irradiated films is shown in Figs.…”

Section: Optical Characterizationmentioning

confidence: 99%

Effect of gamma irradiation on structural, morphological and optical properties of p-quaterphenyl thin films

Attia¹,

Saadeldin²,

Sawaby³

2018

JAP

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Para-quaterphenyl thin films were deposited onto glass and quartz substrates by thermal evaporation method. p-quaterphenyl thin films wereexposed to gamma radiation of Cobat-60 radioactive source at room temperature with a dose of 50 kGy to study the effect of ?-irradiation onthe structure and the surface morphology as well as the optical properties of the prepared films. The crystalline structure and the surface morphology of the as-deposited and ?-irradiated films were examined using the X-ray diffraction and the field emission scanning electron microscope. The optical constants (n & k) of the as-deposited and ?-irradiated films were obtained using the transmittance and reflectance measurements, in the wavelength range starting from 250 up to 2500 nm. The analysis of the absorption coefficient data revealed an allowed direct transition with optical band gap of 2.2 eV for the as-deposited films, which decreased to 2.06 eV after exposing film to gamma irradiation. It was observed that the Urbach energy values change inversely with the values of the optical band gap. The dispersion of the refractive index was interpreted using the single oscillator model. The nonlinear absorption coefficient spectra for the as-deposited and ?-irradiated p-quaterphenyl thin films were obtained using the linear refractive index.

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“…Phthalocyanines (Pcs) have had wide usage in different areas such as press inks, dyes, pigments and laser technology, beginning from their first synthesis early in the last century . Other areas of current interest include applications in liquid crystals, catalysis, dye‐sensitized solar cells, photodynamic therapy (PDT), biomedicine, electronic and optoelectronic devices, chemical sensors, nonlinear optical (NLO) materials …”

Section: Introductionmentioning

confidence: 99%

Anthracene Substituted Co (II) and Cu (II) phthalocyanines; Preparations, Investigation of Catalytical and Electrochemical Behaviors

Saka

Bıyıklıoğlu

Çağlar

2018

Applied Organom Chemis

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An approach to investigation of catalytical behaviors of Co (II) and Cu (II) phthalocyanines is reported that is based on changing any parameter to effect these behaviors. Towards this end, new anthracene substituted Co (II) and Cu (II) phthalocyanines were prepared and characterized spectroscopic methods. New cobalt (II) and copper (II) phthalocyanines were used as catalyst for oxidation of different phenolic compounds (such as 2,3‐dichlorophenol, 4‐methoxyphenol, 4‐nitrophenol, 2,3,6‐trimethylphenol) with different oxidants. Then, electrochemical characterization of cobalt (II) and copper (II) phthallocyanines were determined by using cyclic voltammetry (CV) and square wave voltammetry (SWV) techniques. Although copper (II) phthalocyanine showed similar Pc based electron transfer processes, cobalt (II) phthalocyanine showed metal and ligand based reduction reactions as expected.

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Comparable optical properties and dispersion parameters of monomeric axial ruthenium phthalocyanine thin films

Cited by 19 publications

References 39 publications

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)

Effect of gamma irradiation on structural, morphological and optical properties of p-quaterphenyl thin films

Anthracene Substituted Co (II) and Cu (II) phthalocyanines; Preparations, Investigation of Catalytical and Electrochemical Behaviors

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Comparable optical properties and dispersion parameters of monomeric axial ruthenium phthalocyanine thin films

Cited by 19 publications

References 39 publications

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η5-C5H5)(η6-C6H5R)][X] (X = N(SO2CF3)2, N(SO2F)2, PF6)

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η5-C5H5)(η6-C6H5R)][X] (X = N(SO2CF3)2, N(SO2F)2, PF6)

Effect of gamma irradiation on structural, morphological and optical properties of p-quaterphenyl thin films

Anthracene Substituted Co (II) and Cu (II) phthalocyanines; Preparations, Investigation of Catalytical and Electrochemical Behaviors

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Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)

Colorless organometallic ionic liquids from cationic ruthenium sandwich complexes: thermal properties, liquid properties, and crystal structures of [Ru(η⁵-C₅H₅)(η⁶-C₆H₅R)][X] (X = N(SO₂CF₃)₂, N(SO₂F)₂, PF₆)