Synthesis, crystal structure, spectroscopic characterization and optical properties of bis(4-acetylanilinium) tetrachlorocobalt (II)

Abkari, A.; Chaabane, I.; Guidara, K.

doi:10.1016/j.physe.2016.06.013

Cited by 25 publications

(14 citation statements)

References 47 publications

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“…Moreover, in the UV region, a broad absorption band corresponds to three peak maxima at 376, 304 and 258 nm, probably assigned to the low‐energy tail of the band, corresponding to ligand‐to‐metal charge transfer (3p Cl → 3d Co) . Table presents the corresponding transitions from the initial 4 A 2 ( 4 F) state into the excited states, as expected from some literature data . These results are quite similar to those found for other previously reported MX 4 ‐containing organic–inorganic hybrids, such as [C 9 H 8 NO] 2 CoCl 4 , [C 8 H 10 NO] 2 CoCl 4 and [(CH 3 ) 4 N] 2 CoCl 4…”

Section: Resultssupporting

confidence: 88%

“…[34] Table 2 presents the corresponding transitions from the initial 4 A 2 ( 4 F) state into the excited states, as expected from some literature data. [35,36] These results are quite similar to those found for other previously reported MX 4 -containing organicinorganic hybrids, such as [C 9 H 8 NO] 2 CoCl 4 , [37] [C 8 H 10 NO] 2 CoCl 4 [35] and [(CH 3 ) 4 N] 2 CoCl 4 . [34] The relation between the incident photon energy (hν) and absorption coefficient and near the fundamental absorption edge can be written as [38] F I G U R E 4 Infrared…”

Section: Optical Studysupporting

confidence: 89%

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Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Mahfoudh

Karoui

Gargouri

et al. 2020

Applied Organom Chemis

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Monoclinic crystals of [(CH3)2NH2]2CoCl4 are of the space group P21/n. Unit cell dimensions are as follows: a = 8.5393 Å, b = 11.3905 Å, c = 13.4069 Å and β = 91.02°. This compound undergoes several phase transitions. The optical properties were measured by means of UV–visible absorption spectroscopy in the range 200–800 nm. Analysis of the data revealed the existence of direct allowed optical transition mechanisms with bandgap energy equal to 3.84 eV. The electrical conductivity of [(CH3)2NH2]2CoCl4 was studied in the frequency range 10−1–106 Hz and in the temperature range 411–449 K by means of impedance spectroscopy. Impedance and modulus analyses indicated temperature‐independent distribution of relaxation times and non‐Debye behavior in this material. A super‐linear power law was observed for the AC conductivity, which was analyzed based on the jump relaxation model σac = σdc + A1ωs1 + A2ωs2. Accordingly, the first AC term A1ωs1 corresponds to translational hopping motion and the second term A2ωs2 to well‐localized hopping and/or reorientational motion. Conduction takes place via correlated barrier hopping in phases I and II.

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Section: Resultssupporting

confidence: 88%

Section: Optical Studysupporting

confidence: 89%

Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Mahfoudh

Karoui

Gargouri

et al. 2020

Applied Organom Chemis

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“…In hybrid compounds based on aromatic ring, the À * transition of the benzenoid ring is observed around 319 nm, this result is in agreement with similar compounds (λ ¼ average 300 nm). 36,37 Additionally, the observed absorptions at 466, 496, 560 and 615 nm are caused by band gap absorption and they are attributed to the excitation of free electron-hole pairs within the [Hg 2 Cl 5 ] À inorganic chain.…”

Section: Absorbance Spectra Liquidmentioning

confidence: 99%

“…The highest energy absorption peaks at 422, 560 and 630 nm are due to a photoinduced exciton formed by the transition from the top of the valence band consisting of Cl (3p) orbital to the bottom of the Hg (6s) conduction band. 36,37,40 The bands with maximum energies at 239, 278, 302 and 380 nm can be assigned to the absorption of a highest energetic level in the conduction band.…”

Section: Absorbance Spectra Solidmentioning

confidence: 99%

Optical, UV-Vis spectroscopy studies, electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid (C₆H10N₂)(Hg₂Cl₅)₂.3H₂O

et al. 2019

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In this work, we are interested in the synthesis of new hybrid material (C6[Formula: see text]N2)(Hg2[Formula: see text].3H2O grown by hydrothermal methods. X-ray diffraction indicates that this compound crystallizes at 150(2) K in the monoclinic system with [Formula: see text]/[Formula: see text] space group, with the following unit cell parameters: [Formula: see text](15) Å, [Formula: see text](15) Å, [Formula: see text](6) Å, [Formula: see text] and [Formula: see text]. On the other hand, the optical properties of this compound were studied using ultraviolet-visible (UV-Vis) spectroscopy in the range 200–800[Formula: see text]nm. Furthermore, the optical absorbances are used to determine the absorption coefficient [Formula: see text] and the optical band gap [Formula: see text], so the Tauc model was used to determine the optical gap energy of the compound (C6[Formula: see text]N2)(Hg2[Formula: see text].3H2O. The analysis of the results revealed the existence of optical allowed indirect transition mechanisms with the band gap energy equal to (2.37[Formula: see text]eV) for liquid and (4.33[Formula: see text]eV) for solid. Impedance measurements indicate that the electrical and dielectric properties are strongly dependent on both temperature and frequency. Nyquist plots ([Formula: see text] versus [Formula: see text]) show that the conductivity behavior is accurately represented by an equivalent circuit model which consists of a series combination of bulk and grain boundary. Furthermore, the angular frequency dependence plots of the real and imaginary parts, [Formula: see text] and [Formula: see text], of complex dielectric permittivity [Formula: see text] and tan [Formula: see text] losses at several temperatures between 303 and 453[Formula: see text]K were studied for the title compound. Finally, the modulus plots can be characterized by the presence of two relaxation peaks.

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“…Moreover, such kind of semi-organic materials exhibits large macroscopic nonlinear optical effects compared to organic and inorganic materials due to the presence of p-delocalized intermolecular charge transfer (ICT) configuration system [5,6]. The organic base material of 4-acetylaniline is a strong hydrogen bond acceptor in nature and it is easily bonded to the halogenate metals to form stable crystal structures [7][8][9]. Furthermore, anilinium derivatives with ion combinations were utilized in electroluminescence, electrical conduction, rechargeable batteries, and anti-corrosion applications.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

Suriya

Manimaran

Boaz

et al. 2021

J Mater Sci: Mater Electron

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An efficient semi-organic nonlinear optical bis (4-acetylanilinium) tetrachloridozincate [(C8H10NO)2 ZnCl4] (B4ATCZ) single crystal was synthesized and successfully grown by the slow evaporation method. The single-crystal X-ray diffraction data confirm that B4ATCZ crystallized into an orthorhombic crystal system (Cmca). The UV–Vis–NIR transmittance spectrum was taken to assess the optical transmission, cut-off wavelength, and bandgap energy. The TG–DSC investigation ensures that the B4ATCZ is stable up to 235 °C. The mechanical behavior of the B4ATCZ compound was determined by Vickers Microhardness analysis. The surface laser-induced damage threshold value of the grown B4ATCZ crystal was endowed to be 19.78 GW/cm2 on testing with 1064 nm Nd: YAG laser radiation. The positive photoconductive properties and charge transport mechanism of B4ATCZ crystal were analyzed through photoconductivity and dielectric studies. The electron excitation and lifetime measurements of the molecules in the B4ATCZ crystal were studied by fluorescence spectral analysis. The HOMO–LUMO analysis evidently interprets the occurrence of N–H⋯O and N–H⋯Cl intermolecular hydrogen bonds influencing the charge transfer in the system. The electrostatic potential surface reveals the possible sites for hydrogen bonding electrophilic and nucleophilic interactions. Third-order nonlinear optical activity evaluated by the Z-scan measurements indicates the self-focusing and reverse saturable absorption in the crystal. The aforesaid results affirm that the metal-organic B4ATCZ is a potential material for optoelectronic and nonlinear optical device applications.

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Synthesis, crystal structure, spectroscopic characterization and optical properties of bis(4-acetylanilinium) tetrachlorocobalt (II)

Cited by 25 publications

References 47 publications

Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Optical, UV-Vis spectroscopy studies, electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid (C₆H10N₂)(Hg₂Cl₅)₂.3H₂O

Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

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Synthesis, crystal structure, spectroscopic characterization and optical properties of bis(4-acetylanilinium) tetrachlorocobalt (II)

Cited by 25 publications

References 47 publications

Optical and electrical properties and conduction mechanism of [(CH3)2NH2]2CoCl4

Optical and electrical properties and conduction mechanism of [(CH3)2NH2]2CoCl4

Optical, UV-Vis spectroscopy studies, electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid (C6H10N2)(Hg2Cl5)2.3H2O

Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

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Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Optical and electrical properties and conduction mechanism of [(CH₃)₂NH₂]₂CoCl₄

Optical, UV-Vis spectroscopy studies, electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid (C₆H10N₂)(Hg₂Cl₅)₂.3H₂O