FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2124305983> ?p ?o ?g. }

• W2124305983 endingPage "1204" @default.
• W2124305983 startingPage "1197" @default.
• W2124305983 abstract "The aromatic heterocycles 2,7-diazapyrene (dap) and 3,6-bis(4-pyridyl)-1,2,4,5-tetrazine (4-bptz) each exhibit two very close-lying lowest unoccupied molecular orbitals (MOs) with very different character viz. a methylviologen-like MO (b1u) and a quinonoid (dap) or tetrazine-localized MO (4-bptz) of au symmetry. Calculations (HMO semiempirical NDO type ab initio) suggest that the orbital crossing between b1u and au and thus the character of the singly occupied MO in one-electron reduced compounds can be effected by removal of electron density from the potentially coordinating pyridyl nitrogen centres. We have explored this suggestion experimentally by coordination of electrophiles either alkyl cation R+ or neutral complex fragments W(CO)5, to both pyridine N centres. Experimental data from UV–VIS–NIR and especially EPR spectroelectrochemistry show that coordination of two neutral W(CO)5 fragments to dap is sufficient to cause a change from singly occupied au(in dap˙–) to singly occupied b1u in {dap[W(CO)5]2}˙–. In contrast the 4-bptz˙– radical system requires coordination of two electrophiles R+(R = CH3, C2H5) in order to move b1u below au while the ditungsten(0) radical anion complex is still a 2Au species." @default.
• W2124305983 created "2016-06-24" @default.
• W2124305983 creator A5002291210 @default.
• W2124305983 creator A5020043051 @default.
• W2124305983 creator A5059647078 @default.
• W2124305983 creator A5089041898 @default.
• W2124305983 date "1996-01-01" @default.
• W2124305983 modified "2023-09-24" @default.
• W2124305983 title "Coordination-induced switch between the singly occupied and the lowest unoccupied molecular orbitals in two methylviologen-derived chromophores" @default.
• W2124305983 cites W1497834794 @default.
• W2124305983 cites W1546463549 @default.
• W2124305983 cites W1968983326 @default.
• W2124305983 cites W1974899261 @default.
• W2124305983 cites W1975901013 @default.
• W2124305983 cites W1976106600 @default.
• W2124305983 cites W1979194545 @default.
• W2124305983 cites W1984895575 @default.
• W2124305983 cites W1990943984 @default.
• W2124305983 cites W1995831872 @default.
• W2124305983 cites W2006930438 @default.
• W2124305983 cites W2008859825 @default.
• W2124305983 cites W2014423983 @default.
• W2124305983 cites W2024088828 @default.
• W2124305983 cites W2025466003 @default.
• W2124305983 cites W2029251618 @default.
• W2124305983 cites W2030175511 @default.
• W2124305983 cites W2053959991 @default.
• W2124305983 cites W2065003609 @default.
• W2124305983 cites W2067301044 @default.
• W2124305983 cites W2075015982 @default.
• W2124305983 cites W2077973224 @default.
• W2124305983 cites W2084135044 @default.
• W2124305983 cites W2086645807 @default.
• W2124305983 cites W2089423891 @default.
• W2124305983 cites W2090146323 @default.
• W2124305983 cites W2093786563 @default.
• W2124305983 cites W2094162189 @default.
• W2124305983 cites W2120939781 @default.
• W2124305983 cites W2152905579 @default.
• W2124305983 cites W2949830094 @default.
• W2124305983 cites W2950325154 @default.
• W2124305983 cites W32845278 @default.
• W2124305983 cites W934972841 @default.
• W2124305983 doi "https://doi.org/10.1039/p29960001197" @default.
• W2124305983 hasPublicationYear "1996" @default.
• W2124305983 type Work @default.
• W2124305983 sameAs 2124305983 @default.
• W2124305983 citedByCount "16" @default.
• W2124305983 countsByYear W21243059832014 @default.
• W2124305983 countsByYear W21243059832017 @default.
• W2124305983 countsByYear W21243059832020 @default.
• W2124305983 countsByYear W21243059832022 @default.
• W2124305983 countsByYear W21243059832023 @default.
• W2124305983 crossrefType "journal-article" @default.
• W2124305983 hasAuthorship W2124305983A5002291210 @default.
• W2124305983 hasAuthorship W2124305983A5020043051 @default.
• W2124305983 hasAuthorship W2124305983A5059647078 @default.
• W2124305983 hasAuthorship W2124305983A5089041898 @default.
• W2124305983 hasConcept C121332964 @default.
• W2124305983 hasConcept C139358910 @default.
• W2124305983 hasConcept C14158195 @default.
• W2124305983 hasConcept C147120987 @default.
• W2124305983 hasConcept C147597530 @default.
• W2124305983 hasConcept C155647269 @default.
• W2124305983 hasConcept C161790260 @default.
• W2124305983 hasConcept C178790620 @default.
• W2124305983 hasConcept C185592680 @default.
• W2124305983 hasConcept C189394030 @default.
• W2124305983 hasConcept C192468462 @default.
• W2124305983 hasConcept C2779485729 @default.
• W2124305983 hasConcept C32909587 @default.
• W2124305983 hasConcept C50027330 @default.
• W2124305983 hasConcept C55493867 @default.
• W2124305983 hasConcept C62520636 @default.
• W2124305983 hasConcept C71240020 @default.
• W2124305983 hasConcept C75473681 @default.
• W2124305983 hasConcept C8010536 @default.
• W2124305983 hasConceptScore W2124305983C121332964 @default.
• W2124305983 hasConceptScore W2124305983C139358910 @default.
• W2124305983 hasConceptScore W2124305983C14158195 @default.
• W2124305983 hasConceptScore W2124305983C147120987 @default.
• W2124305983 hasConceptScore W2124305983C147597530 @default.
• W2124305983 hasConceptScore W2124305983C155647269 @default.
• W2124305983 hasConceptScore W2124305983C161790260 @default.
• W2124305983 hasConceptScore W2124305983C178790620 @default.
• W2124305983 hasConceptScore W2124305983C185592680 @default.
• W2124305983 hasConceptScore W2124305983C189394030 @default.
• W2124305983 hasConceptScore W2124305983C192468462 @default.
• W2124305983 hasConceptScore W2124305983C2779485729 @default.
• W2124305983 hasConceptScore W2124305983C32909587 @default.
• W2124305983 hasConceptScore W2124305983C50027330 @default.
• W2124305983 hasConceptScore W2124305983C55493867 @default.
• W2124305983 hasConceptScore W2124305983C62520636 @default.
• W2124305983 hasConceptScore W2124305983C71240020 @default.
• W2124305983 hasConceptScore W2124305983C75473681 @default.
• W2124305983 hasConceptScore W2124305983C8010536 @default.
• W2124305983 hasIssue "6" @default.
• W2124305983 hasLocation W21243059831 @default.

• next