Matches in SemOpenAlex for { <https://semopenalex.org/work/W6301103> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W6301103 abstract "Porphyrin planarity, is though to influence chemical and electron-transfer properties of tetrapyrroles in methylreductase and the photosynthetic reaction center. The authors are investigating the effect of differing metals on the conformation of the porphyrin ring for a series of highly non-planar porphyrins. The non-planarity of these octaalkyl-tetraphenylporphyrins results from steric crowding of substituents at the periphery of the planarity of the macrocycle. However, the metals incorporated into the central core effect the planarity of the macrocycle and the metal core geometry. The series of octaethyl-tetraphenylporphyrin (OETPP) metal derivaties (M=N(II), Co(II), Co(III)OAc, Cu(II), Zn(II), Fe(III)Cl) is investigated using UV-visible adsorption spectroscopy, dual-channel resonance Raman spectroscopy, and X-ray crystallography. A comparison is made between the non-planar OETPPs and the planar octaethylporphyrins (OEPs) and tetraphenylporphyrins (TPPs). Molecular mechanics calculations are also used to calculate the molecular conformations for the metal OETPPs and corresponding metal OEPs and TPPs. The calculated conformations and compared with the experimetal stuctures. Generally, the macrocycle planarity of the OETPPs decreases as the metal size increases, although all of the metal derivatives maintain considerable non-plarity. Core sizes for the MOETPP series vary over the entire range of the observed core sizes for all planar metalloporphyrins. Nevertheless, a plot of themore » Raman frequencies versus porphyrin core size indicates that there is little or no core-size dependence of the Raman modes v[sub 2], v[sub 3] and v[sub 4].« less" @default.
- W6301103 created "2016-06-24" @default.
- W6301103 creator A5003317795 @default.
- W6301103 creator A5010299893 @default.
- W6301103 creator A5040086645 @default.
- W6301103 creator A5054415399 @default.
- W6301103 creator A5059808742 @default.
- W6301103 creator A5072559840 @default.
- W6301103 creator A5077280975 @default.
- W6301103 creator A5080745187 @default.
- W6301103 date "1992-01-01" @default.
- W6301103 modified "2023-09-28" @default.
- W6301103 title "Metal effects on the structure of non-planar porphyrins" @default.
- W6301103 hasPublicationYear "1992" @default.
- W6301103 type Work @default.
- W6301103 sameAs 6301103 @default.
- W6301103 citedByCount "0" @default.
- W6301103 crossrefType "journal-article" @default.
- W6301103 hasAuthorship W6301103A5003317795 @default.
- W6301103 hasAuthorship W6301103A5010299893 @default.
- W6301103 hasAuthorship W6301103A5040086645 @default.
- W6301103 hasAuthorship W6301103A5054415399 @default.
- W6301103 hasAuthorship W6301103A5059808742 @default.
- W6301103 hasAuthorship W6301103A5072559840 @default.
- W6301103 hasAuthorship W6301103A5077280975 @default.
- W6301103 hasAuthorship W6301103A5080745187 @default.
- W6301103 hasConcept C120665830 @default.
- W6301103 hasConcept C121332964 @default.
- W6301103 hasConcept C178790620 @default.
- W6301103 hasConcept C185592680 @default.
- W6301103 hasConcept C201194858 @default.
- W6301103 hasConcept C2779480358 @default.
- W6301103 hasConcept C2781340169 @default.
- W6301103 hasConcept C32909587 @default.
- W6301103 hasConcept C40003534 @default.
- W6301103 hasConcept C544153396 @default.
- W6301103 hasConcept C68260962 @default.
- W6301103 hasConcept C71240020 @default.
- W6301103 hasConcept C75473681 @default.
- W6301103 hasConcept C8010536 @default.
- W6301103 hasConceptScore W6301103C120665830 @default.
- W6301103 hasConceptScore W6301103C121332964 @default.
- W6301103 hasConceptScore W6301103C178790620 @default.
- W6301103 hasConceptScore W6301103C185592680 @default.
- W6301103 hasConceptScore W6301103C201194858 @default.
- W6301103 hasConceptScore W6301103C2779480358 @default.
- W6301103 hasConceptScore W6301103C2781340169 @default.
- W6301103 hasConceptScore W6301103C32909587 @default.
- W6301103 hasConceptScore W6301103C40003534 @default.
- W6301103 hasConceptScore W6301103C544153396 @default.
- W6301103 hasConceptScore W6301103C68260962 @default.
- W6301103 hasConceptScore W6301103C71240020 @default.
- W6301103 hasConceptScore W6301103C75473681 @default.
- W6301103 hasConceptScore W6301103C8010536 @default.
- W6301103 hasLocation W63011031 @default.
- W6301103 hasOpenAccess W6301103 @default.
- W6301103 hasPrimaryLocation W63011031 @default.
- W6301103 hasRelatedWork W176696500 @default.
- W6301103 hasRelatedWork W1971602702 @default.
- W6301103 hasRelatedWork W1973358223 @default.
- W6301103 hasRelatedWork W1975668175 @default.
- W6301103 hasRelatedWork W1991015413 @default.
- W6301103 hasRelatedWork W1996746539 @default.
- W6301103 hasRelatedWork W1997061528 @default.
- W6301103 hasRelatedWork W2015843646 @default.
- W6301103 hasRelatedWork W2024732393 @default.
- W6301103 hasRelatedWork W2029874229 @default.
- W6301103 hasRelatedWork W2045478333 @default.
- W6301103 hasRelatedWork W2052620687 @default.
- W6301103 hasRelatedWork W2070419187 @default.
- W6301103 hasRelatedWork W2081142715 @default.
- W6301103 hasRelatedWork W2083494188 @default.
- W6301103 hasRelatedWork W2089465204 @default.
- W6301103 hasRelatedWork W2092173151 @default.
- W6301103 hasRelatedWork W2171132808 @default.
- W6301103 hasRelatedWork W2184132279 @default.
- W6301103 hasRelatedWork W2321440026 @default.
- W6301103 isParatext "false" @default.
- W6301103 isRetracted "false" @default.
- W6301103 magId "6301103" @default.
- W6301103 workType "article" @default.