Outstanding visible trans-to-cis photoinduced isomerization of fac-[Re(CO)3(dcbH2)(trans-stpy)]+ on thin TiO2 film

Matos, Lais S.; Amaral, Ronaldo C.; Iha, Neyde Yukie Murakami

doi:10.1016/j.jpap.2021.100061

Cited by 1 publication

(1 citation statement)

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“…Several studies have reported trans-to-cis and cis-to-trans isomerization under UV and visible lights. [31,32] Figure 2 depicts the time-dependent absorption spectra of 1od. The isomerization process can be tracked by observing the change in the absorption maximum of 1od at λ max (440 nm for 1od).…”

Section: Photophysical Properties Of 1odmentioning

confidence: 99%

Experimental and Theoretical Investigation of 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine as Optical Limiter

John,

Benny,

Philip

et al. 2023

ChemistrySelect

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Azobenzenes undergo reversible trans‐cis photoisomerization and have been extensively studied as photoresponsive material. In contrast, azopyridines have garnered relatively less attention despite their similar photochemistry. When compared to azobenzene, azopyridines offer more opportunities for material design through hydrogen bonding and coordination chemistry. Here, we report the isomerization for 3‐[(2‐chlorophenyl)diazenyl]pyridine‐2,6‐diamine (1od) through an integrative experimental and computational study. Notably, the energy barrier of 1od was significantly lower than that of previously reported azobenzenes. Moreover, we investigated and elucidated the photoisomerization pathway. 1od exhibited high nonlinear absorption, with a nonlinear absorption coefficient (βeff) of 1.31 10−9 m W−1, as determined by Z‐scan measurements. The results indicate that 1od has potential applications in optical limiters, which are used to fabricate protective eyewear and safeguard optical sensors from damage.

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Section: Photophysical Properties Of 1odmentioning

confidence: 99%