FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2024332199> ?p ?o ?g. }

• W2024332199 endingPage "6334" @default.
• W2024332199 startingPage "6328" @default.
• W2024332199 abstract "Pterin−copper ion interactions are of interest for possible modeling of enzyme active site chemistry or in coupling reactions of a redox-active metal ion with a redox-active ligand cofactor, Here, we describe the synthesis of derivatized chelating pterins, provided with enhanced organic solubility by introduction of a pivalolyl group at the pterin C2 position and supplied with a good copper ion chelator, through reaction of the 6-(bromomethyl)pterin with a 2-(2-(methylamino)ethyl)pyridine (to give L‘) or bis(2-pyrid-2-ylethyl)amine (to give L). Copper(I) and copper(II) complexes have been synthesized and characterized. The X-ray structure of [L‘Cu(Cl)(CH3CN)](PF6) (3-PF6) is described [space group P21/c; a = 10.606(3) Å, b = 21.683(3) Å, c = 12.188(3) Å; β = 96.67(2)°; Z = 4; V = 2784(1) Å3] and compared with the previously reported structure of [LCu(Cl)](PF6)(NaPF6) (1-PF6·NaPF6). In 3-PF6, the Cu(II) is pentacoordinate, including equatorial ligation to the pterin N5 atom, achieving one of the goals of the ligand design. Unlike other pterin−Cu(II) structures, neither 1-PF6·NaPF6 nor 3-PF6 binds to the pterin carbonyl oxygen atom (off pterin C4). Other solution spectroscopic data (e.g., IR, UV−vis, EPR) and a magnetic moment of 1.91 μB are provided and are consistent with the solid-state structure observed. Copper(I) complexes [LCuI](PF6) (5-PF6) and [L‘CuI](PF6)·0.25CH2Cl2 (6-PF6·0.25CH2Cl2) have been generated and characterized. Observed coordination-induced 1H NMR chemical shifts in 6-PF6·0.25CH2Cl2) are consistent with binding through the pterin pyrazine N5 donor; a UV−vis feature at 466 nm (sh, ε = 1200) is considered a MLCT transition. A cyclic voltammogram of 6-PF6·0.25CH2Cl2 (DMF solvent) reveals a reversible redox process with E1/2 = 286 mV (E1/2 = 546 mV for ferrocene/ferrocenium; vs Ag/AgCl). [L‘CuII(CH3CN)](CF3SO3)2 (4-(CF3SO3)2) exhibits the identical cyclic voltammogram, indicating common solution structures. The analogue complex [(MeL)CuI(CH3CN)](ClO4) (7-ClO4) (MeL = (2-(2-pyridyl)ethyl)(2-pyridylmethyl)methylamine) displays a more negative redox potential, E1/2 = 24 mV, indicating that the pterin pyrazine ring has an electron-withdrawing effect, which may explain the lack of O2 reactivity of copper(I) complexes of L and L‘." @default.
• W2024332199 created "2016-06-24" @default.
• W2024332199 creator A5012557702 @default.
• W2024332199 creator A5025120875 @default.
• W2024332199 creator A5040007305 @default.
• W2024332199 creator A5084521304 @default.
• W2024332199 creator A5090207100 @default.
• W2024332199 date "1997-12-01" @default.
• W2024332199 modified "2023-09-23" @default.
• W2024332199 title "Copper Ion Complexes with Derivatized Chelating Pterin Ligands" @default.
• W2024332199 cites W1986011459 @default.
• W2024332199 cites W1998722626 @default.
• W2024332199 cites W2004236517 @default.
• W2024332199 cites W2022104894 @default.
• W2024332199 cites W2025693208 @default.
• W2024332199 cites W2026837933 @default.
• W2024332199 cites W2042079317 @default.
• W2024332199 cites W2043049178 @default.
• W2024332199 cites W2045418501 @default.
• W2024332199 cites W2056678311 @default.
• W2024332199 cites W2060256061 @default.
• W2024332199 cites W2063961257 @default.
• W2024332199 cites W2065434867 @default.
• W2024332199 cites W2067635885 @default.
• W2024332199 cites W2077535029 @default.
• W2024332199 cites W2079948241 @default.
• W2024332199 cites W2093001905 @default.
• W2024332199 cites W2095129056 @default.
• W2024332199 cites W2101639848 @default.
• W2024332199 cites W2321118443 @default.
• W2024332199 cites W277762786 @default.
• W2024332199 cites W2951583208 @default.
• W2024332199 doi "https://doi.org/10.1021/ic970810k" @default.
• W2024332199 hasPublicationYear "1997" @default.
• W2024332199 type Work @default.
• W2024332199 sameAs 2024332199 @default.
• W2024332199 citedByCount "16" @default.
• W2024332199 countsByYear W20243321992012 @default.
• W2024332199 countsByYear W20243321992014 @default.
• W2024332199 countsByYear W20243321992018 @default.
• W2024332199 countsByYear W20243321992023 @default.
• W2024332199 crossrefType "journal-article" @default.
• W2024332199 hasAuthorship W2024332199A5012557702 @default.
• W2024332199 hasAuthorship W2024332199A5025120875 @default.
• W2024332199 hasAuthorship W2024332199A5040007305 @default.
• W2024332199 hasAuthorship W2024332199A5084521304 @default.
• W2024332199 hasAuthorship W2024332199A5090207100 @default.
• W2024332199 hasConcept C116569031 @default.
• W2024332199 hasConcept C155647269 @default.
• W2024332199 hasConcept C170493617 @default.
• W2024332199 hasConcept C178790620 @default.
• W2024332199 hasConcept C179104552 @default.
• W2024332199 hasConcept C181199279 @default.
• W2024332199 hasConcept C185592680 @default.
• W2024332199 hasConcept C197404232 @default.
• W2024332199 hasConcept C197957613 @default.
• W2024332199 hasConcept C2776055822 @default.
• W2024332199 hasConcept C544778455 @default.
• W2024332199 hasConcept C55493867 @default.
• W2024332199 hasConcept C71240020 @default.
• W2024332199 hasConceptScore W2024332199C116569031 @default.
• W2024332199 hasConceptScore W2024332199C155647269 @default.
• W2024332199 hasConceptScore W2024332199C170493617 @default.
• W2024332199 hasConceptScore W2024332199C178790620 @default.
• W2024332199 hasConceptScore W2024332199C179104552 @default.
• W2024332199 hasConceptScore W2024332199C181199279 @default.
• W2024332199 hasConceptScore W2024332199C185592680 @default.
• W2024332199 hasConceptScore W2024332199C197404232 @default.
• W2024332199 hasConceptScore W2024332199C197957613 @default.
• W2024332199 hasConceptScore W2024332199C2776055822 @default.
• W2024332199 hasConceptScore W2024332199C544778455 @default.
• W2024332199 hasConceptScore W2024332199C55493867 @default.
• W2024332199 hasConceptScore W2024332199C71240020 @default.
• W2024332199 hasIssue "27" @default.
• W2024332199 hasLocation W20243321991 @default.
• W2024332199 hasOpenAccess W2024332199 @default.
• W2024332199 hasPrimaryLocation W20243321991 @default.
• W2024332199 hasRelatedWork W1964253971 @default.
• W2024332199 hasRelatedWork W1971894732 @default.
• W2024332199 hasRelatedWork W2090490335 @default.
• W2024332199 hasRelatedWork W2126512842 @default.
• W2024332199 hasRelatedWork W2128544464 @default.
• W2024332199 hasRelatedWork W2152064680 @default.
• W2024332199 hasRelatedWork W2166446933 @default.
• W2024332199 hasRelatedWork W2293526962 @default.
• W2024332199 hasRelatedWork W2313979199 @default.
• W2024332199 hasRelatedWork W2328197315 @default.
• W2024332199 hasVolume "36" @default.
• W2024332199 isParatext "false" @default.
• W2024332199 isRetracted "false" @default.
• W2024332199 magId "2024332199" @default.
• W2024332199 workType "article" @default.