FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4229009502> ?p ?o ?g. }

• W4229009502 endingPage "8716" @default.
• W4229009502 startingPage "8707" @default.
• W4229009502 abstract "Controlling the electronic spin state in single molecules through an external stimulus is of interest in developing devices for information technology, such as data storage and quantum computing. We report the synthesis and operation mode of two all-organic molecular spin-state switches that can be photochemically switched from a diamagnetic [electron paramagnetic resonance (EPR)-silent] to a paramagnetic (EPR-active) form at cryogenic temperatures due to a reversible electrocyclic reaction of its carbon skeleton. Facile synthetic substitution of a configurationally stable 1,14-dimethyl-[5]helicene with radical stabilizing groups at the 4,11-positions afforded two spin-state switches as 4,11-dioxo or 4,11-bis(dicyanomethylidenyl) derivatives in a closed diamagnetic form. After irradiation with an LED light source at cryogenic temperatures, a stable paramagnetic state is readily obtained, making this system a bistable magnetic switch that can reversibly react back to its diamagnetic form through a thermal stimulus. The switching can be monitored with UV/vis spectroscopy and EPR spectroscopy or induced by electrochemical reduction and reoxidation. Variable-temperature EPR spectroscopy of the paramagnetic species revealed an open-shell triplet ground state with an experimentally determined triplet-singlet energy gap of ΔET-S < 0.1 kcal mol-1. The inherent chirality and the ability to separate the enantiomers turns this helical motif into a potential chiroptical spin-state switch. The herein developed 4,11-substitution pattern on the dimethyl[5]helicene introduces a platform for designing future generations of organic molecular photomagnetic switches that might find applications in spintronics and related fields." @default.
• W4229009502 created "2022-05-08" @default.
• W4229009502 creator A5001395293 @default.
• W4229009502 creator A5005244793 @default.
• W4229009502 creator A5059161025 @default.
• W4229009502 creator A5074810751 @default.
• W4229009502 creator A5089422306 @default.
• W4229009502 date "2022-05-06" @default.
• W4229009502 modified "2023-09-30" @default.
• W4229009502 title "An All-Organic Photochemical Magnetic Switch with Bistable Spin States" @default.
• W4229009502 cites W1804975709 @default.
• W4229009502 cites W1823409394 @default.
• W4229009502 cites W1965271989 @default.
• W4229009502 cites W1966551387 @default.
• W4229009502 cites W1969200114 @default.
• W4229009502 cites W1970881901 @default.
• W4229009502 cites W1972373023 @default.
• W4229009502 cites W1974607002 @default.
• W4229009502 cites W1989936170 @default.
• W4229009502 cites W1994559890 @default.
• W4229009502 cites W1995976462 @default.
• W4229009502 cites W2008844584 @default.
• W4229009502 cites W2009999279 @default.
• W4229009502 cites W2013559981 @default.
• W4229009502 cites W2032170198 @default.
• W4229009502 cites W2036370535 @default.
• W4229009502 cites W2041319754 @default.
• W4229009502 cites W2042643725 @default.
• W4229009502 cites W2046815504 @default.
• W4229009502 cites W2049493927 @default.
• W4229009502 cites W2053365908 @default.
• W4229009502 cites W2055983263 @default.
• W4229009502 cites W2060715120 @default.
• W4229009502 cites W2067881030 @default.
• W4229009502 cites W2077836199 @default.
• W4229009502 cites W2079566200 @default.
• W4229009502 cites W2086553951 @default.
• W4229009502 cites W2087497057 @default.
• W4229009502 cites W2093793194 @default.
• W4229009502 cites W2100700871 @default.
• W4229009502 cites W2105050546 @default.
• W4229009502 cites W2131490400 @default.
• W4229009502 cites W2142654861 @default.
• W4229009502 cites W2155600484 @default.
• W4229009502 cites W2158421237 @default.
• W4229009502 cites W2158712248 @default.
• W4229009502 cites W2181278546 @default.
• W4229009502 cites W2313904173 @default.
• W4229009502 cites W2321734865 @default.
• W4229009502 cites W2323327092 @default.
• W4229009502 cites W2337750449 @default.
• W4229009502 cites W2469360254 @default.
• W4229009502 cites W2729995910 @default.
• W4229009502 cites W2769979230 @default.
• W4229009502 cites W2789986683 @default.
• W4229009502 cites W2887743059 @default.
• W4229009502 cites W2897883650 @default.
• W4229009502 cites W2919395196 @default.
• W4229009502 cites W2950816840 @default.
• W4229009502 cites W2953011286 @default.
• W4229009502 cites W2990131678 @default.
• W4229009502 cites W3001946510 @default.
• W4229009502 cites W3016396449 @default.
• W4229009502 cites W3033657182 @default.
• W4229009502 cites W3110401118 @default.
• W4229009502 cites W3127518952 @default.
• W4229009502 cites W3209453773 @default.
• W4229009502 cites W4210281996 @default.
• W4229009502 cites W4210332256 @default.
• W4229009502 cites W4210962488 @default.
• W4229009502 cites W4211007953 @default.
• W4229009502 cites W4224301652 @default.
• W4229009502 cites W4243622434 @default.
• W4229009502 cites W4249738364 @default.
• W4229009502 doi "https://doi.org/10.1021/jacs.2c02195" @default.
• W4229009502 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35522997" @default.
• W4229009502 hasPublicationYear "2022" @default.
• W4229009502 type Work @default.
• W4229009502 citedByCount "16" @default.
• W4229009502 countsByYear W42290095022022 @default.
• W4229009502 countsByYear W42290095022023 @default.
• W4229009502 crossrefType "journal-article" @default.
• W4229009502 hasAuthorship W4229009502A5001395293 @default.
• W4229009502 hasAuthorship W4229009502A5005244793 @default.
• W4229009502 hasAuthorship W4229009502A5059161025 @default.
• W4229009502 hasAuthorship W4229009502A5074810751 @default.
• W4229009502 hasAuthorship W4229009502A5089422306 @default.
• W4229009502 hasConcept C115260700 @default.
• W4229009502 hasConcept C117633835 @default.
• W4229009502 hasConcept C121332964 @default.
• W4229009502 hasConcept C124712363 @default.
• W4229009502 hasConcept C159467904 @default.
• W4229009502 hasConcept C178790620 @default.
• W4229009502 hasConcept C179104552 @default.
• W4229009502 hasConcept C181500209 @default.
• W4229009502 hasConcept C184779094 @default.
• W4229009502 hasConcept C185592680 @default.
• W4229009502 hasConcept C187961010 @default.

• next