Matches in SemOpenAlex for { <https://semopenalex.org/work/W1991397306> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W1991397306 endingPage "192" @default.
- W1991397306 startingPage "183" @default.
- W1991397306 abstract "Alumina gels doped with polyamine copper(II) complexes were prepared by the sol-gel technique. The gels and the adsorbed water were characterized by ESR and optical absorption spectroscopies and thermogravimetry for the copper(II) complexes. The complex molecules are almost free in tumbling motion in air at room temperature to the same extent as those in viscous fluid solutions (such as aqueous ethylene glycol), but they aggregate gradually and the motion stops with decreasing amount of adsorbed water. The reversible interconversion of two dynamic states of the copper(II) complex molecule was observed according to whether the alumina gel surface was covered by adsorbed water, the amount of which was enough to form a monomolecular layer, or not. The variation of the amount of adsorbed water in the gels also causes reversibly the complex formation and dissociation between polyamine ligands and copper(II) ions for less stable complexes. As reported previously, silica gels catch tightly the complex molecules within the matrices by forming direct chemical bonding, and never show such an effect of adsorbed water as described above even though they contain adsorbed water in amounts comparable with the alumina gels." @default.
- W1991397306 created "2016-06-24" @default.
- W1991397306 creator A5020410283 @default.
- W1991397306 creator A5034187432 @default.
- W1991397306 creator A5063610868 @default.
- W1991397306 date "1990-07-01" @default.
- W1991397306 modified "2023-09-26" @default.
- W1991397306 title "Characterization of polyamine copper(II) complex-doped alumina gels prepared by the sol-gel technique" @default.
- W1991397306 cites W1983347361 @default.
- W1991397306 cites W1988248600 @default.
- W1991397306 cites W1994051303 @default.
- W1991397306 cites W1999063998 @default.
- W1991397306 cites W2005076500 @default.
- W1991397306 cites W2011393945 @default.
- W1991397306 cites W2012346836 @default.
- W1991397306 cites W2023374681 @default.
- W1991397306 cites W2025100477 @default.
- W1991397306 cites W2031211688 @default.
- W1991397306 cites W2034374065 @default.
- W1991397306 cites W2034524486 @default.
- W1991397306 cites W2042012119 @default.
- W1991397306 cites W2043830752 @default.
- W1991397306 cites W2048386779 @default.
- W1991397306 cites W2051753214 @default.
- W1991397306 cites W2054400103 @default.
- W1991397306 cites W2066300675 @default.
- W1991397306 cites W2066331847 @default.
- W1991397306 cites W2076811138 @default.
- W1991397306 cites W2089532330 @default.
- W1991397306 cites W2092298774 @default.
- W1991397306 cites W2095926172 @default.
- W1991397306 cites W2328561330 @default.
- W1991397306 doi "https://doi.org/10.1016/0022-3093(90)91064-x" @default.
- W1991397306 hasPublicationYear "1990" @default.
- W1991397306 type Work @default.
- W1991397306 sameAs 1991397306 @default.
- W1991397306 citedByCount "20" @default.
- W1991397306 countsByYear W19913973062013 @default.
- W1991397306 countsByYear W19913973062016 @default.
- W1991397306 countsByYear W19913973062018 @default.
- W1991397306 crossrefType "journal-article" @default.
- W1991397306 hasAuthorship W1991397306A5020410283 @default.
- W1991397306 hasAuthorship W1991397306A5034187432 @default.
- W1991397306 hasAuthorship W1991397306A5063610868 @default.
- W1991397306 hasConcept C102931765 @default.
- W1991397306 hasConcept C127413603 @default.
- W1991397306 hasConcept C150394285 @default.
- W1991397306 hasConcept C178790620 @default.
- W1991397306 hasConcept C179104552 @default.
- W1991397306 hasConcept C184651966 @default.
- W1991397306 hasConcept C185592680 @default.
- W1991397306 hasConcept C188027245 @default.
- W1991397306 hasConcept C2777516009 @default.
- W1991397306 hasConcept C2779532046 @default.
- W1991397306 hasConcept C32909587 @default.
- W1991397306 hasConcept C39588626 @default.
- W1991397306 hasConcept C42360764 @default.
- W1991397306 hasConcept C544153396 @default.
- W1991397306 hasConcept C544778455 @default.
- W1991397306 hasConceptScore W1991397306C102931765 @default.
- W1991397306 hasConceptScore W1991397306C127413603 @default.
- W1991397306 hasConceptScore W1991397306C150394285 @default.
- W1991397306 hasConceptScore W1991397306C178790620 @default.
- W1991397306 hasConceptScore W1991397306C179104552 @default.
- W1991397306 hasConceptScore W1991397306C184651966 @default.
- W1991397306 hasConceptScore W1991397306C185592680 @default.
- W1991397306 hasConceptScore W1991397306C188027245 @default.
- W1991397306 hasConceptScore W1991397306C2777516009 @default.
- W1991397306 hasConceptScore W1991397306C2779532046 @default.
- W1991397306 hasConceptScore W1991397306C32909587 @default.
- W1991397306 hasConceptScore W1991397306C39588626 @default.
- W1991397306 hasConceptScore W1991397306C42360764 @default.
- W1991397306 hasConceptScore W1991397306C544153396 @default.
- W1991397306 hasConceptScore W1991397306C544778455 @default.
- W1991397306 hasIssue "2" @default.
- W1991397306 hasLocation W19913973061 @default.
- W1991397306 hasOpenAccess W1991397306 @default.
- W1991397306 hasPrimaryLocation W19913973061 @default.
- W1991397306 hasRelatedWork W2014704455 @default.
- W1991397306 hasRelatedWork W2045909453 @default.
- W1991397306 hasRelatedWork W2058426887 @default.
- W1991397306 hasRelatedWork W2072577606 @default.
- W1991397306 hasRelatedWork W2126512842 @default.
- W1991397306 hasRelatedWork W2358364851 @default.
- W1991397306 hasRelatedWork W2376424761 @default.
- W1991397306 hasRelatedWork W2901441640 @default.
- W1991397306 hasRelatedWork W3186354444 @default.
- W1991397306 hasRelatedWork W4323315072 @default.
- W1991397306 hasVolume "122" @default.
- W1991397306 isParatext "false" @default.
- W1991397306 isRetracted "false" @default.
- W1991397306 magId "1991397306" @default.
- W1991397306 workType "article" @default.