Ferrocene and [3]ferrocenophane-based β-diketonato copper(<scp>ii</scp>) and zinc(<scp>ii</scp>) complexes: synthesis, crystal structure, electrochemistry and catalytic effect on thermal decomposition of ammonium perchlorate

Zhao, Haiying; Zhu, Xueyou; Shang, Yadong; Chen, Shufeng; Li, Baoguo; Bian, Zhanxi

doi:10.1039/c6ra02588a

Cited by 38 publications

(9 citation statements)

References 41 publications

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“…The experiments revealed that all five sensitizers are redox stable and displayed quasi‐reversible voltammograms. [ 42 ] The HOMO and LUMO energy levels of sensitizers were calculated at the inception of reduction and oxidation potentials. The HOMO levels of these sensitizers are in range from +0.245 to +0.515 V versus Ag/Ag + in acetonitrile.…”

Section: Resultsmentioning

confidence: 99%

“…This indicated feasible charge injection from photoexcited sensitizers in the conduction band of TiO 2. [ 42c ] Also, to ensure fast excited‐state injection and dye regeneration a minimum driving force of 0.2 V is sufficient. Thus, the electron injection from the excited state of the sensitizers to the conduction band of TiO 2 followed by the regeneration of oxidized dyes through a redox couple are highly efficient in all five sensitizers.…”

Section: Resultsmentioning

confidence: 99%

“…The trend of charge transfer resistance follows the order 3‐Py‐Ni > 2‐Py‐Ni > CN‐Ph‐Ni > Bz‐Ni > Th‐Ni . [ 42a ] Bode phase plots (Figure 7b) were constructed to find out the effective lifetime (π eff ) of electrons in the TiO 2 conduction. [ 43,44 ]…”

Section: Resultsmentioning

confidence: 99%

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Effect of different aromatic groups on photovoltaic performance of 1,1′‐bis (diphenylphosphino)ferrocene functionalized Ni (II) dithiolates as sensitizers in dye sensitized solar cells

Singh

Dutta

Srivastava

et al. 2021

Applied Organom Chemis

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A series of five new heteroleptic 1,1 0 -bis (diphenylphosphino)ferrocene (dppf) appended nickel (II) dithiolates namely, [Ni (dppf)(Th-Ni) have been prepared and characterized using spectroscopic techniques and in one case by single-crystal X-ray diffraction analysis for CN-Ph-Ni. The geometry around Ni (II) in CN-Ph-Ni is distorted square planar which is fulfilled by two S and two P centers of dithiolate and dppf ligand, respectively. The electronic absorption spectra for sensitizers display major bands between 400 and 550 nm that could be ascribed to an intra-molecular charge transfer (ICT) between the ferrocene and functionalized dithiolates to engender an efficient charge separated state. All these newly synthesized compounds are used as sensitizers in dye sensitized solar cells (DSSCs). The photovoltaic performances for the five featured sensitizers follow the order 3-Py-Ni>2-Py-Ni>CN-Ph-Ni>Bz-Ni>Th-Ni. The assembly fabricated with 3-Py-Ni displays J sc of 13.15 mA cm À2 and V oc of À0.633 with conversion efficiency (η) and incident photon-to-current conversion efficiency (IPCE) of 5.05% and 52%, respectively. The relatively slower charge recombination, greater dye loading capacity on TiO 2 nano-particulate and relative smaller total resistance are the possible reasons behind the superior photovoltaic performance of the cell fabricated using the 3-Py-Ni as sensitizer. Also, density of states calculations have been performed which suggested that in the best performer 3-Py-Ni+(TiO 2 ) 30 cell set-up, the minimum inter-band excitation energy lies $1.4 eV. Also, efficient electron coupling between sensitizer and (TiO 2 ) 30 results in efficient sensitization of TiO 2 nanocluster.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Effect of different aromatic groups on photovoltaic performance of 1,1′‐bis (diphenylphosphino)ferrocene functionalized Ni (II) dithiolates as sensitizers in dye sensitized solar cells

Singh

Dutta

Srivastava

et al. 2021

Applied Organom Chemis

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“…Furthermore, compounds Ia-8 and Ib-8 with ferrocenyl showed very broad absorption bands at 480-620 nm due to d-d type transitions of the electrons of the iron atoms, and this band for the [3]ferrocenophane-containing Ib-8 was stronger than that of ferrocene-containing 1a-8. 34 Next, the compounds were irradiated with UV light (365 nm). As an example, the spectral changes of Ic are presented in Fig.…”

Section: Photoisomerisation Studiesmentioning

confidence: 99%

“…6, the redox potentials of Ib-8 slightly inuenced by the scan rate in a range from 10 to 300 mV s À1 , and both the anodic and cathodic peak currents are linear to the square root of scan rates, indicating a diffusion-controlled process. 34…”

Section: Electrochemical Investigationmentioning

confidence: 99%

Some new azobenzene liquid crystals involving chalcone and ester linkages

et al. 2017

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Mono‐ and Dinuclear Ferrocenyl Ionic Compounds with Polycyano Anions. Characterization, Migration, and Catalytic Effects on Thermal Decomposition of Energetic Compounds

Shao

et al. 2016

Zeitschrift anorg allge chemie

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Neutral ferrocene‐based burning rate (BR) catalysts show strong migration trends and volatility during long‐time storage and curing of the composite solid propellants. To reduce these disadvantages thirty‐two ferrocenyl quaternary ammonium compounds, paired with polycyano anions, were synthesized and characterized by 1H NMR, 13C NMR, and UV/Vis spectroscopy, as well as elemental analysis. Additionally, crystal structures of eight compounds were confirmed by single‐crystal X‐ray diffraction. TG and DSC analyses indicated that the compounds containing 1,1,2,3,3‐pentacyanopropenide anions show high thermal stability. Cyclic voltammetry studies suggested that they are quasi‐reversible or irreversible redox systems. Anti‐migration tests verified that the tested compounds show very low migration tendency and some of them exhibit no migration after 30 days aging at 70 °C. Their catalytic efficiency in the thermal decomposition of ammonium perchlorate (AP), 1,3,5‐trinitro‐1,3,5‐triazacyclohexane (RDX), and 1,2,5,7‐tetranitro‐1,3,5,7‐tetraazacyclooctane (HMX) were examined by DSC analyses. The results revealed that most of the compounds exhibit distinct effects on the thermal degradation of AP and RDX. Two compounds have good catalytic ability in the thermal decomposition of HMX, representing rare examples of the reported ferrocenyl ionic compounds, which display catalytic property during combustion of HMX.

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Ferrocene and [3]ferrocenophane-based β-diketonato copper(ii) and zinc(ii) complexes: synthesis, crystal structure, electrochemistry and catalytic effect on thermal decomposition of ammonium perchlorate

Abstract: Ferrocene and [3]ferrocenophane-based β-diketonato Cu(ii) complexes exhibit enhanced electrochemical behaviors and burning rate catalytic effects compared with the Zn(ii) complexes.

Cited by 38 publications

References 41 publications

Effect of different aromatic groups on photovoltaic performance of 1,1′‐bis (diphenylphosphino)ferrocene functionalized Ni (II) dithiolates as sensitizers in dye sensitized solar cells

Effect of different aromatic groups on photovoltaic performance of 1,1′‐bis (diphenylphosphino)ferrocene functionalized Ni (II) dithiolates as sensitizers in dye sensitized solar cells

Some new azobenzene liquid crystals involving chalcone and ester linkages

Mono‐ and Dinuclear Ferrocenyl Ionic Compounds with Polycyano Anions. Characterization, Migration, and Catalytic Effects on Thermal Decomposition of Energetic Compounds

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