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The addition of chomoprhores in Ru complexes shift the absorption? 


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The addition of chromophores in Ru complexes can indeed shift the absorption spectra. Different studies have shown that modifications in the ligands of Ru complexes lead to shifts in absorption bands. For instance, the introduction of carboxyl groups in bpy ligands causes a red-shift in the metal-to-ligand-charge-transfer (MLCT) absorption bands . Similarly, the presence of dcbp ligands in mixed ligand complexes results in a red shift in both absorption and emission spectra compared to Ru(bpy)3 . Additionally, altering the nature of the N-N ligand in Ru(II) polypyridyl complexes can tune the absorption spectra, with most new complexes exhibiting red-shifted metal-to-ligand charge transfer absorptions compared to Ru(bpy)3 . These findings collectively demonstrate that the addition of chromophores in Ru complexes can indeed influence and shift the absorption properties.

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The addition of chromophores in Ru complexes shifts absorption, as seen in the Ru(II)–anthraquinone complex with a red-shifted 1MLCT absorption peak at 546 nm.
The addition of chromophores like dcbp in Ru complexes causes a red shift in absorption and emission wavelengths due to lowered energy levels, as observed in the study.
Yes, altering ligands in Ru polypyridyl complexes shifts absorption spectra to lower energies, enhancing solar energy capture by tuning redox potentials and excited state properties.
The addition of ruthenium in Bi12TiO20 crystals shifts optical absorption towards the near-infrared region, with absorption increasing as Ru concentration rises, indicating a significant impact on absorption properties.
The addition of chromophores, like carboxyl groups, in Ru complexes shifts the absorption spectra to lower energies due to MLCT band stabilization and deprotonation-induced blue shifts.

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