Matches in SemOpenAlex for { <https://semopenalex.org/work/W1996341472> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W1996341472 endingPage "1533" @default.
- W1996341472 startingPage "1511" @default.
- W1996341472 abstract "Absorption spectra of chlorophyll a were measured in polar and non-polar solvents, as a function of temperature from 298 degrees to 77 degrees K. Both dilute and concentrated solutions were examined. In both types of solvents at room temperature, the absorption spectra of concentrated solutions differ from dilute ones in that the half width of the main red absorption band is greater, and all bands are shifted to longer wavelengths. These differences are largely due to the presence of dimers when the pigment concentration is high. In dilute ethanol solutions, where the chlorophyll is unassociated, cooling causes a red shift in all bands which is due to the increased polarity of the solvent at low temperature. On cooling at high concentrations in ethanol and EPA, a new band appears near 700 nm. This band is attributed to dimers present prior to cooling, but absorbing at shorter wavelengths at room temperature. In nonpolar solvents, a band near 700 nm appears at the solvent freezing point. In these solvents, the 700 nm absorption is attributed to dimers, and/or small polymers, partly formed by cooling. A change in aggregate geometry when the solvent becomes viscous or frozen can account for the appearance of this 700 nm absorption band at low temperature, in polar and nonpolar media." @default.
- W1996341472 created "2016-06-24" @default.
- W1996341472 creator A5015040835 @default.
- W1996341472 creator A5045073997 @default.
- W1996341472 date "1968-12-01" @default.
- W1996341472 modified "2023-09-30" @default.
- W1996341472 title "Low Temperature Absorption Spectra of Chlorophyll a in Polar and Nonpolar Solvents" @default.
- W1996341472 cites W1732367476 @default.
- W1996341472 cites W1966877369 @default.
- W1996341472 cites W1975108740 @default.
- W1996341472 cites W1978388509 @default.
- W1996341472 cites W2019454704 @default.
- W1996341472 cites W2045767566 @default.
- W1996341472 cites W2066667479 @default.
- W1996341472 cites W2068708005 @default.
- W1996341472 cites W2075529817 @default.
- W1996341472 cites W2117757409 @default.
- W1996341472 cites W2139680801 @default.
- W1996341472 doi "https://doi.org/10.1016/s0006-3495(68)86570-1" @default.
- W1996341472 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1367452" @default.
- W1996341472 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/5713456" @default.
- W1996341472 hasPublicationYear "1968" @default.
- W1996341472 type Work @default.
- W1996341472 sameAs 1996341472 @default.
- W1996341472 citedByCount "29" @default.
- W1996341472 countsByYear W19963414722012 @default.
- W1996341472 countsByYear W19963414722017 @default.
- W1996341472 countsByYear W19963414722020 @default.
- W1996341472 countsByYear W19963414722021 @default.
- W1996341472 crossrefType "journal-article" @default.
- W1996341472 hasAuthorship W1996341472A5015040835 @default.
- W1996341472 hasAuthorship W1996341472A5045073997 @default.
- W1996341472 hasBestOaLocation W19963414721 @default.
- W1996341472 hasConcept C113196181 @default.
- W1996341472 hasConcept C119824511 @default.
- W1996341472 hasConcept C120665830 @default.
- W1996341472 hasConcept C121332964 @default.
- W1996341472 hasConcept C125287762 @default.
- W1996341472 hasConcept C1276947 @default.
- W1996341472 hasConcept C159985019 @default.
- W1996341472 hasConcept C178790620 @default.
- W1996341472 hasConcept C185592680 @default.
- W1996341472 hasConcept C191274033 @default.
- W1996341472 hasConcept C192562407 @default.
- W1996341472 hasConcept C2780471494 @default.
- W1996341472 hasConcept C29705727 @default.
- W1996341472 hasConcept C43617362 @default.
- W1996341472 hasConcept C4839761 @default.
- W1996341472 hasConcept C49040817 @default.
- W1996341472 hasConcept C6260449 @default.
- W1996341472 hasConcept C75473681 @default.
- W1996341472 hasConceptScore W1996341472C113196181 @default.
- W1996341472 hasConceptScore W1996341472C119824511 @default.
- W1996341472 hasConceptScore W1996341472C120665830 @default.
- W1996341472 hasConceptScore W1996341472C121332964 @default.
- W1996341472 hasConceptScore W1996341472C125287762 @default.
- W1996341472 hasConceptScore W1996341472C1276947 @default.
- W1996341472 hasConceptScore W1996341472C159985019 @default.
- W1996341472 hasConceptScore W1996341472C178790620 @default.
- W1996341472 hasConceptScore W1996341472C185592680 @default.
- W1996341472 hasConceptScore W1996341472C191274033 @default.
- W1996341472 hasConceptScore W1996341472C192562407 @default.
- W1996341472 hasConceptScore W1996341472C2780471494 @default.
- W1996341472 hasConceptScore W1996341472C29705727 @default.
- W1996341472 hasConceptScore W1996341472C43617362 @default.
- W1996341472 hasConceptScore W1996341472C4839761 @default.
- W1996341472 hasConceptScore W1996341472C49040817 @default.
- W1996341472 hasConceptScore W1996341472C6260449 @default.
- W1996341472 hasConceptScore W1996341472C75473681 @default.
- W1996341472 hasIssue "12" @default.
- W1996341472 hasLocation W19963414721 @default.
- W1996341472 hasLocation W19963414722 @default.
- W1996341472 hasLocation W19963414723 @default.
- W1996341472 hasLocation W19963414724 @default.
- W1996341472 hasOpenAccess W1996341472 @default.
- W1996341472 hasPrimaryLocation W19963414721 @default.
- W1996341472 hasRelatedWork W1967912246 @default.
- W1996341472 hasRelatedWork W1973051791 @default.
- W1996341472 hasRelatedWork W1994269829 @default.
- W1996341472 hasRelatedWork W2008419921 @default.
- W1996341472 hasRelatedWork W2021654250 @default.
- W1996341472 hasRelatedWork W2104233005 @default.
- W1996341472 hasRelatedWork W2169134433 @default.
- W1996341472 hasRelatedWork W2182120695 @default.
- W1996341472 hasRelatedWork W3155707037 @default.
- W1996341472 hasRelatedWork W4250571304 @default.
- W1996341472 hasVolume "8" @default.
- W1996341472 isParatext "false" @default.
- W1996341472 isRetracted "false" @default.
- W1996341472 magId "1996341472" @default.
- W1996341472 workType "article" @default.