Synthesis and photophysical properties of porphyrins containing viologen units for ultrafast molecular photonics

Laudien, Robert; Yoshida, Iori; Nagamura, Toshihiko

doi:10.1039/b202991j

Cited by 15 publications

(11 citation statements)

References 51 publications

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“…( E )‐4‐(4‐Hydroxyphenyl)‐3‐butylene‐2‐one 4 was prepared according to a previous report . Intermediates 5a to 5 k and intermediates 6a to 6 k were prepared following reported methods, with minor modifications.…”

Section: Methodsmentioning

confidence: 99%

Design, synthesis, antiviral activity and three-dimensional quantitative structure-activity relationship study of novel 1,4-pentadien-3-one derivatives containing the 1,3,4-oxadiazole moiety

Gan

et al. 2015

Pest. Manag. Sci.

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Section: Methodsmentioning

confidence: 99%

Design, synthesis, antiviral activity and three-dimensional quantitative structure-activity relationship study of novel 1,4-pentadien-3-one derivatives containing the 1,3,4-oxadiazole moiety

Gan

et al. 2015

Pest. Manag. Sci.

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“…5 Moreover, porphyrins have good light-harvesting properties because of high molar extinction coefficients of their Soret and Q-bands in the UV/Vis spectra, and they show unique photophysical and electrochemical properties that are tunable by varying the meso-functional groups and through interactions with metal atoms. 6,7 There have been a number of systems comprising noncovalent association of porphyrins with small molecules, 8,9 polymers, 10 DNA, 11 metallic nanoparticles, 12 and semiconductor quantum dots. 6,7 There have been a number of systems comprising noncovalent association of porphyrins with small molecules, 8,9 polymers, 10 DNA, 11 metallic nanoparticles, 12 and semiconductor quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Real-time observation of ultrafast electron injection at graphene–Zn porphyrin interfaces

Masih

Aly

Usman

et al. 2015

Phys. Chem. Chem. Phys.

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We report on the ultrafast interfacial electron transfer (ET) between zinc(II) porphyrin (ZnTMPyP) and negatively charged graphene carboxylate (GC) using state-of-the-art femtosecond laser spectroscopy with broadband capabilities. The steady-state interaction between GC and ZnTMPyP results in a red-shifted absorption spectrum, providing a clear indication for the binding affinity between ZnTMPyP and GC via electrostatic and π-π stacking interactions. Ultrafast transient absorption (TA) spectra in the absence and presence of three different GC concentrations reveal (i) the ultrafast formation of singlet excited ZnTMPyP*, which partially relaxes into a long-lived triplet state, and (ii) ET from the singlet excited ZnTMPyP* to GC, forming ZnTMPyP˙(+) and GC˙(-), as indicated by a spectral feature at 650-750 nm, which is attributed to a ZnTMPyP radical cation resulting from the ET process.

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“…Mass spectra were recorded in ESI mode. Calix[6]arene 1 ,31 undec‐10‐enyl tosylate ( 2 ),32 N ‐pentyl‐4(4′‐pyridyl) pyridinium bromide ( 7 )33 and the calix[4]arene‐protected gold nanoparticles NP( Cx 4 ) with mean core sizes of 134 and 5 nm18 were synthesised according to published procedures.…”

Section: Methodsmentioning

confidence: 99%

Assembly of Gold Nanoparticles on Functionalized Si(100) Surfaces through Pseudorotaxane Formation

Boccia

D'Orazi

Carabelli

et al. 2013

Chemistry A European J

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The assembly of gold nanoparticles (AuNPs) on a hydrogenated Si(100) surface, mediated by a series of hierarchical and reversible complexation processes, is reported. The proposed multi-step sequence involves a redox-active ditopic guest and suitable calix[n]arene-based hosts, used as functional organic monolayers of the two inorganic components. Surface reactions and controlled release of AuNPs have been monitored by application of XPS, atomic force microscopy (AFM), field-emission scanning electron microscopy (FESEM) and electrochemistry.

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Synthesis and photophysical properties of porphyrins containing viologen units for ultrafast molecular photonics

Cited by 15 publications

References 51 publications

Design, synthesis, antiviral activity and three-dimensional quantitative structure-activity relationship study of novel 1,4-pentadien-3-one derivatives containing the 1,3,4-oxadiazole moiety

Design, synthesis, antiviral activity and three-dimensional quantitative structure-activity relationship study of novel 1,4-pentadien-3-one derivatives containing the 1,3,4-oxadiazole moiety

Real-time observation of ultrafast electron injection at graphene–Zn porphyrin interfaces

Assembly of Gold Nanoparticles on Functionalized Si(100) Surfaces through Pseudorotaxane Formation

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