FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1976552014> ?p ?o ?g. }

• W1976552014 endingPage "4365" @default.
• W1976552014 startingPage "4355" @default.
• W1976552014 abstract "The platinum diimine bis(acetylide) chromophore was utilized to explore photoinduced intramolecular reductive quenching with phenothiazine donors in chromophore−donor dyad complexes. Compounds of the general formula Pt(X2-bpy)(C⋮C-p-C6H4CH2(D))2 (where D = phenothiazine (PTZ) or trifluromethylphenothiazine (TPZ) and X = tBu or CO2Et) were synthesized from the corresponding Pt(X2-bpy)Cl2 and aryl acetylene by a CuI-catalyzed coupling reaction. Solvent dependence was explored for the system with X = tBu in MeCN, CH2Cl2, EtOAc, and toluene. Electron transfer quenching of the 3MLCT excited state of the platinum diimine bis(acetylide) takes place in MeCN leaving no intrinsic emission from the excited state, but in toluene both the PTZ and TPZ dyad complexes exhibit no emission quenching. Picosecond pump−probe transient absorption (TA) experiments were used to monitor decay of the 3MLCT excited state and electron transfer to form the charge-separated (CS) state. Electrochemical measurements were used to estimate the driving force for charge recombination (CR), with ΔECR based on the reduction potential corresponding to Pt(X2-bpy)(C⋮C−Ar)2 → Pt(X2-bpy•-)(C⋮C−Ar)2 and the oxidation corresponding to donor → donor•+. Kinetic information from the TA measurements was used to correlate rate and driving force with the electron transfer reactions. Concomitant with the decay of the 3MLCT excited state was the observation of a transient absorption at ca. 500 nm due to formation of the PTZ or TPZ radical cation in the CS state, with the rate of charge separation, kCS, being 1.8 × 109 to 2 × 1010 s-1 for the three dyads explored in MeCN and 1:9 CH2Cl2/MeCN. The fastest rate of CR occurs for X = CO2Et and D = PTZ, the compound with smallest ΔECR = 1.71 V. The rate of CR for dyads with X = tBu and D = PTZ or TPZ was estimated to be 1.7−2.0 × 108 s-1 in MeCN. The slower rate corresponds to a greater driving force for CR, ΔECR = 2.18 and 2.36 V for D = PTZ and TPZ, respectively, suggesting that the driving force for charge recombination places it in the Marcus inverted region." @default.
• W1976552014 created "2016-06-24" @default.
• W1976552014 creator A5006844227 @default.
• W1976552014 creator A5086361448 @default.
• W1976552014 date "2003-06-10" @default.
• W1976552014 modified "2023-10-04" @default.
• W1976552014 title "Dyads for Photoinduced Charge Separation Based on Platinum Diimine Bis(acetylide) Chromophores: Synthesis, Luminescence and Transient Absorption Studies" @default.
• W1976552014 cites W1963896471 @default.
• W1976552014 cites W1964483326 @default.
• W1976552014 cites W1978673372 @default.
• W1976552014 cites W1989433523 @default.
• W1976552014 cites W1995684877 @default.
• W1976552014 cites W1996429242 @default.
• W1976552014 cites W1999582957 @default.
• W1976552014 cites W2000466466 @default.
• W1976552014 cites W2001993329 @default.
• W1976552014 cites W2012962061 @default.
• W1976552014 cites W2013295730 @default.
• W1976552014 cites W2013440762 @default.
• W1976552014 cites W2024606033 @default.
• W1976552014 cites W2031977250 @default.
• W1976552014 cites W2033515815 @default.
• W1976552014 cites W2046729924 @default.
• W1976552014 cites W2049745418 @default.
• W1976552014 cites W2052990604 @default.
• W1976552014 cites W2062237037 @default.
• W1976552014 cites W2062524885 @default.
• W1976552014 cites W2063074480 @default.
• W1976552014 cites W2063408009 @default.
• W1976552014 cites W2068292733 @default.
• W1976552014 cites W2069506896 @default.
• W1976552014 cites W2084002459 @default.
• W1976552014 cites W2087400780 @default.
• W1976552014 cites W2088665773 @default.
• W1976552014 cites W2090901778 @default.
• W1976552014 cites W2152745328 @default.
• W1976552014 cites W2167663534 @default.
• W1976552014 cites W3004794190 @default.
• W1976552014 doi "https://doi.org/10.1021/ic034026d" @default.
• W1976552014 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12844308" @default.
• W1976552014 hasPublicationYear "2003" @default.
• W1976552014 type Work @default.
• W1976552014 sameAs 1976552014 @default.
• W1976552014 citedByCount "130" @default.
• W1976552014 countsByYear W19765520142012 @default.
• W1976552014 countsByYear W19765520142013 @default.
• W1976552014 countsByYear W19765520142014 @default.
• W1976552014 countsByYear W19765520142015 @default.
• W1976552014 countsByYear W19765520142016 @default.
• W1976552014 countsByYear W19765520142017 @default.
• W1976552014 countsByYear W19765520142018 @default.
• W1976552014 countsByYear W19765520142019 @default.
• W1976552014 countsByYear W19765520142022 @default.
• W1976552014 countsByYear W19765520142023 @default.
• W1976552014 crossrefType "journal-article" @default.
• W1976552014 hasAuthorship W1976552014A5006844227 @default.
• W1976552014 hasAuthorship W1976552014A5086361448 @default.
• W1976552014 hasConcept C121332964 @default.
• W1976552014 hasConcept C121745418 @default.
• W1976552014 hasConcept C123669783 @default.
• W1976552014 hasConcept C161790260 @default.
• W1976552014 hasConcept C178790620 @default.
• W1976552014 hasConcept C181500209 @default.
• W1976552014 hasConcept C184779094 @default.
• W1976552014 hasConcept C185592680 @default.
• W1976552014 hasConcept C192468462 @default.
• W1976552014 hasConcept C2776303508 @default.
• W1976552014 hasConcept C2779627003 @default.
• W1976552014 hasConcept C2781018080 @default.
• W1976552014 hasConcept C32891209 @default.
• W1976552014 hasConcept C518104683 @default.
• W1976552014 hasConcept C62520636 @default.
• W1976552014 hasConcept C71240020 @default.
• W1976552014 hasConcept C75079739 @default.
• W1976552014 hasConcept C75473681 @default.
• W1976552014 hasConcept C91881484 @default.
• W1976552014 hasConcept C95503338 @default.
• W1976552014 hasConceptScore W1976552014C121332964 @default.
• W1976552014 hasConceptScore W1976552014C121745418 @default.
• W1976552014 hasConceptScore W1976552014C123669783 @default.
• W1976552014 hasConceptScore W1976552014C161790260 @default.
• W1976552014 hasConceptScore W1976552014C178790620 @default.
• W1976552014 hasConceptScore W1976552014C181500209 @default.
• W1976552014 hasConceptScore W1976552014C184779094 @default.
• W1976552014 hasConceptScore W1976552014C185592680 @default.
• W1976552014 hasConceptScore W1976552014C192468462 @default.
• W1976552014 hasConceptScore W1976552014C2776303508 @default.
• W1976552014 hasConceptScore W1976552014C2779627003 @default.
• W1976552014 hasConceptScore W1976552014C2781018080 @default.
• W1976552014 hasConceptScore W1976552014C32891209 @default.
• W1976552014 hasConceptScore W1976552014C518104683 @default.
• W1976552014 hasConceptScore W1976552014C62520636 @default.
• W1976552014 hasConceptScore W1976552014C71240020 @default.
• W1976552014 hasConceptScore W1976552014C75079739 @default.
• W1976552014 hasConceptScore W1976552014C75473681 @default.
• W1976552014 hasConceptScore W1976552014C91881484 @default.
• W1976552014 hasConceptScore W1976552014C95503338 @default.
• W1976552014 hasIssue "14" @default.

• next