Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018016222> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2018016222 abstract "The reaction of a copper(II) or nickel(II) imidazolate complex (M[CBP-PHEN-4-CHO-Im]) with zinc(II)tetraphenylporphyrin (TPP) in toluene results in the formation of an imidazolate bridged heterobinuclear axial adduct. Conversion of the four-coordinated Zn(TPP) to the five-coordinated species is followed in the visible region between 700 and 500 nm. Isosbestic behavior is exhibited at 523, 556, 588, and 638 nm by solutions of Zn(TPP) to which varying amounts of the metal imidazolate complex are added, indicating the existence of an equilibrium between Zn(TPP) and its axial adduct. The products exhibit maxima beta and alpha bands at 566 and 606 nm, respectively, which are red-shifted from 548 and 588 nm for Zn(TPP) and yield epsilon alpha/epsilon beta ratios of 0.57 and 0.55 for the Ni(II) and Cu(II) adducts, respectively. The binding of the metal imidazolate complexes is thought to closely resemble that of N-methylimidazole, N-CH3Im, rather than imidazolate, owing to the close spectral similarities with the adduct of the former and significant differences from the latter. Formation constants were determined using the 548-nm beta band of Zn(TPP) in the 293-308 K range by the method of Rose and Drago. At 25 degrees C, K = 152,000 M-1 and 110,000 M-1 for the copper and nickel adducts, respectively. Comparison of these values to that of 54,100 M-1 for N-CH3Im indicates that the metal-imidazolate complexes are considerably more reactive. Van't Hoff plots for the two series are very similar with enthalpies of -41.9 and -43.3 kJ/mole respectively. The structural core of these complexes is similar to the imidazolate bridged model of cytochrome c oxidase in that they contain a metal imidazolate axially adducted to a metalloporphyrin." @default.
- W2018016222 created "2016-06-24" @default.
- W2018016222 creator A5005340858 @default.
- W2018016222 creator A5011771910 @default.
- W2018016222 date "1986-04-01" @default.
- W2018016222 modified "2023-10-04" @default.
- W2018016222 title "Imidazolate Bridged Heterobinuclear Complexes of Zinc(II)tetraphenylporphyrin. Modeling Cytochrome c Oxidase" @default.
- W2018016222 cites W1499674981 @default.
- W2018016222 cites W1996905822 @default.
- W2018016222 cites W2004489152 @default.
- W2018016222 cites W2005353981 @default.
- W2018016222 cites W2016528077 @default.
- W2018016222 cites W2020298029 @default.
- W2018016222 cites W2023193822 @default.
- W2018016222 cites W2050497157 @default.
- W2018016222 cites W2066499292 @default.
- W2018016222 cites W2068287173 @default.
- W2018016222 cites W2070939699 @default.
- W2018016222 cites W2113305715 @default.
- W2018016222 cites W2320766729 @default.
- W2018016222 cites W2949167417 @default.
- W2018016222 cites W3005439608 @default.
- W2018016222 doi "https://doi.org/10.1016/0162-0134(86)80049-6" @default.
- W2018016222 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/3011987" @default.
- W2018016222 hasPublicationYear "1986" @default.
- W2018016222 type Work @default.
- W2018016222 sameAs 2018016222 @default.
- W2018016222 citedByCount "7" @default.
- W2018016222 crossrefType "journal-article" @default.
- W2018016222 hasAuthorship W2018016222A5005340858 @default.
- W2018016222 hasAuthorship W2018016222A5011771910 @default.
- W2018016222 hasConcept C108204754 @default.
- W2018016222 hasConcept C155647269 @default.
- W2018016222 hasConcept C178790620 @default.
- W2018016222 hasConcept C179104552 @default.
- W2018016222 hasConcept C185592680 @default.
- W2018016222 hasConcept C2778401137 @default.
- W2018016222 hasConcept C2779480358 @default.
- W2018016222 hasConcept C2780596747 @default.
- W2018016222 hasConcept C504270822 @default.
- W2018016222 hasConcept C535196362 @default.
- W2018016222 hasConcept C544153396 @default.
- W2018016222 hasConcept C544778455 @default.
- W2018016222 hasConcept C71240020 @default.
- W2018016222 hasConcept C75473681 @default.
- W2018016222 hasConcept C8010536 @default.
- W2018016222 hasConceptScore W2018016222C108204754 @default.
- W2018016222 hasConceptScore W2018016222C155647269 @default.
- W2018016222 hasConceptScore W2018016222C178790620 @default.
- W2018016222 hasConceptScore W2018016222C179104552 @default.
- W2018016222 hasConceptScore W2018016222C185592680 @default.
- W2018016222 hasConceptScore W2018016222C2778401137 @default.
- W2018016222 hasConceptScore W2018016222C2779480358 @default.
- W2018016222 hasConceptScore W2018016222C2780596747 @default.
- W2018016222 hasConceptScore W2018016222C504270822 @default.
- W2018016222 hasConceptScore W2018016222C535196362 @default.
- W2018016222 hasConceptScore W2018016222C544153396 @default.
- W2018016222 hasConceptScore W2018016222C544778455 @default.
- W2018016222 hasConceptScore W2018016222C71240020 @default.
- W2018016222 hasConceptScore W2018016222C75473681 @default.
- W2018016222 hasConceptScore W2018016222C8010536 @default.
- W2018016222 hasLocation W20180162221 @default.
- W2018016222 hasLocation W20180162222 @default.
- W2018016222 hasOpenAccess W2018016222 @default.
- W2018016222 hasPrimaryLocation W20180162221 @default.
- W2018016222 hasRelatedWork W1964650001 @default.
- W2018016222 hasRelatedWork W1969274865 @default.
- W2018016222 hasRelatedWork W1970044826 @default.
- W2018016222 hasRelatedWork W1986433305 @default.
- W2018016222 hasRelatedWork W2007330820 @default.
- W2018016222 hasRelatedWork W2048704835 @default.
- W2018016222 hasRelatedWork W2059666662 @default.
- W2018016222 hasRelatedWork W2161988801 @default.
- W2018016222 hasRelatedWork W2359981949 @default.
- W2018016222 hasRelatedWork W610031948 @default.
- W2018016222 isParatext "false" @default.
- W2018016222 isRetracted "false" @default.
- W2018016222 magId "2018016222" @default.
- W2018016222 workType "article" @default.