Photoswitchable azobenzene functionalized anthraquinone and benzimidazole Ru(II)-p-cymene organometallic complexes

Phapale, Daulat; Das, Dipanwita

doi:10.1016/j.jorganchem.2020.121203

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…The photochemical reaction was carefully monitored by TLC after irradiation at 485 nm, and subsequent 1 H-NMR analysis showed the formation of tosylamide azobenzene E-7. This process was observed in a manner similar to that described by Phapale and Das [23] in benzimidazole arene-Ru(II) complexes (Scheme 5). While the fate of the chloro-arene-Ru component could not be elucidated, our observations are consistent with the fact that the system remains unchanged when left in the dark.…”

Section: Photoisomerization Studies Of the Tosylamide Azobenzene Prol...supporting

confidence: 73%

Steric Bulk‐Dependent Photoresponse of Sulfonamide Azobenzene Ligand in Arene Ruthenium(II) Complexes

Long,

Retailleau,

Xie

et al. 2024

Helvetica Chimica Acta

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A series of sulfonamide azobenzenes bearing alkyl substituents of increasing steric bulk at the position ortho to the N=N bond and their corresponding chloro(hexamethylbenzene)ruthenium(II) complexes were synthesized. The latter bearing mono‐substituted ligands exhibited an exocyclic azo bond under the E configuration, and underwent reversible E→Z photoisomerization upon irradiation with visible light, followed by thermal Z→E back isomerization upon resting in the dark at 20°C. In contrast, the corresponding 2,6‐dimethyl substituted azobenzene complex, while also exhibiting an exocyclic azo bond, was isolated as the Z‐isomer and underwent uncommon solvent dependent irreversible photodissociation of azobenzene ligand upon visible light irradiation. Valuable insights into the photophysical and structural properties of these complexes were gained by combination of computational and X‐ray diffraction studies.

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Section: Photoisomerization Studies Of the Tosylamide Azobenzene Prol...supporting

confidence: 73%

Steric Bulk‐Dependent Photoresponse of Sulfonamide Azobenzene Ligand in Arene Ruthenium(II) Complexes

Long,

Retailleau,

Xie

et al. 2024

Helvetica Chimica Acta

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Photoswitchable Copper(I) and Copper(II) Complexes of Phenylazo‐3,5‐dimethylpyrazole Incorporated Ligands

et al. 2023

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We report the design, synthesis, characterization, and photochemistry of three photoresponsive azoheteroarene‐based neutral N‐donor ligands. Furthermore, those bidentate and tridentate ligands have been coordinated with Cu(I) and Cu(II) metal ions to form seven complexes exhibiting different geometries and nuclearities. Detailed studies of the electronic properties, photoswitching, and thermal reverse isomerization behavior of the photoswitched states of the free ligands and their metal complexes in different solvents are presented.

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A review of the photochromic behavior of metal complexes embedded in conjugated (–N=N–C=N–) and non-conjugated azo-imine-based ligands

Mandal¹,

Pratihar

2023

Reviews in Inorganic Chemistry

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Photochromic compounds are well known and attract tremendous necessity for their versatile applications in various fields of science. When exposed to light, metal complexes containing potentially photoswitchable azo (–N=N–) and imine (–C=N–) based ligands can be switched between trans (E) and cis (Z) two isomers, as well as energy manipulation and energy level modulation. Then the cis (Z) isomers underwent slow thermal isomerization back to the more stable trans (Z) isomers. The quantum efficiency of metal complexes has been tuned by modifying the ligands’ structures and altering metal substrates. Herein our review encompasses the photochromic behavior of a few conjugated azo-imine (–N=N–C=N–), ligands such as arylazoimidazoles, phenylazopyridine, azobispyridine, arylazopyrozoles, as well as a few non-conjugated azo-imine or Schiff base ligands with their metal complexes.

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Photoswitchable azobenzene functionalized anthraquinone and benzimidazole Ru(II)-p-cymene organometallic complexes

Cited by 3 publications

References 37 publications

Steric Bulk‐Dependent Photoresponse of Sulfonamide Azobenzene Ligand in Arene Ruthenium(II) Complexes

Steric Bulk‐Dependent Photoresponse of Sulfonamide Azobenzene Ligand in Arene Ruthenium(II) Complexes

Photoswitchable Copper(I) and Copper(II) Complexes of Phenylazo‐3,5‐dimethylpyrazole Incorporated Ligands

A review of the photochromic behavior of metal complexes embedded in conjugated (–N=N–C=N–) and non-conjugated azo-imine-based ligands

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