FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2077783105> ?p ?o ?g. }

• W2077783105 endingPage "7458" @default.
• W2077783105 startingPage "7448" @default.
• W2077783105 abstract "Optically active polyisocyanides (poly(iminomethylenes)) have been prepared with much interest in developing new functional materials. Polyisocyanides have been considered to have a stable 4(1) helical conformation even in solution when they have a bulky side group. However, the conformational characteristics of poly(phenyl isocyanide) (PPI) derivatives are still under debate. We now report that an optically inactive PPI derivative, poly(4-carboxyphenyl isocyanide) (poly-1), shows optical activity in the polymer backbone induced by external, chiral stimuli through acid-base interactions under thermodynamic control and exhibits induced circular dichroism (ICD) in the UV-visible region in DMSO. The ICD intensities of the poly-1-chiral amine complexes in DMSO gradually increased with time, and, in one case, the value reached 3 times that of the original value after 2 months at 30 degrees C. The conformational changes also occurred very slowly for poly-1 alone and its ethyl ester with time on the basis of (1)H NMR spectroscopic analysis. These results indicate that PPIs bearing a less bulky substituent may not have a 4(1) helical conformation but have a different type of prochiral conformation, for instance, an s-trans (zigzag) structure which may transform to a dynamic, one-handed helical conformation when the PPIs have a functional group capable of interacting with chiral compounds. The mechanism of helicity induction on poly-1 through a dynamic conformational transition is discussed on the basis of the above results together with molecular dynamic simulation results for PPI." @default.
• W2077783105 created "2016-06-24" @default.
• W2077783105 creator A5034036353 @default.
• W2077783105 creator A5061442573 @default.
• W2077783105 creator A5077126502 @default.
• W2077783105 date "2002-05-29" @default.
• W2077783105 modified "2023-10-11" @default.
• W2077783105 title "Macromolecular Chirality Induction on Optically Inactive Poly(4-carboxyphenyl isocyanide) with Chiral Amines: A Dynamic Conformational Transition of Poly(phenyl isocyanide) Derivatives" @default.
• W2077783105 cites W1516295931 @default.
• W2077783105 cites W1977063303 @default.
• W2077783105 cites W1979426884 @default.
• W2077783105 cites W1987476665 @default.
• W2077783105 cites W1987778407 @default.
• W2077783105 cites W1994884620 @default.
• W2077783105 cites W1998936314 @default.
• W2077783105 cites W2002660032 @default.
• W2077783105 cites W2013953415 @default.
• W2077783105 cites W2014860471 @default.
• W2077783105 cites W2018985540 @default.
• W2077783105 cites W2022295771 @default.
• W2077783105 cites W2023272956 @default.
• W2077783105 cites W2023700754 @default.
• W2077783105 cites W2024289128 @default.
• W2077783105 cites W2029613142 @default.
• W2077783105 cites W2032777611 @default.
• W2077783105 cites W2041532324 @default.
• W2077783105 cites W2042506703 @default.
• W2077783105 cites W2045110408 @default.
• W2077783105 cites W2048105019 @default.
• W2077783105 cites W2063287742 @default.
• W2077783105 cites W2064090593 @default.
• W2077783105 cites W2067387635 @default.
• W2077783105 cites W2071501526 @default.
• W2077783105 cites W2071833906 @default.
• W2077783105 cites W2079195271 @default.
• W2077783105 cites W2095179053 @default.
• W2077783105 cites W2120446897 @default.
• W2077783105 cites W2131699735 @default.
• W2077783105 cites W2132114565 @default.
• W2077783105 cites W2137932674 @default.
• W2077783105 cites W2165643489 @default.
• W2077783105 cites W2170006871 @default.
• W2077783105 cites W2949411587 @default.
• W2077783105 cites W3005404439 @default.
• W2077783105 cites W4205669956 @default.
• W2077783105 doi "https://doi.org/10.1021/ja0259537" @default.
• W2077783105 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12071754" @default.
• W2077783105 hasPublicationYear "2002" @default.
• W2077783105 type Work @default.
• W2077783105 sameAs 2077783105 @default.
• W2077783105 citedByCount "87" @default.
• W2077783105 countsByYear W20777831052012 @default.
• W2077783105 countsByYear W20777831052013 @default.
• W2077783105 countsByYear W20777831052014 @default.
• W2077783105 countsByYear W20777831052016 @default.
• W2077783105 countsByYear W20777831052017 @default.
• W2077783105 countsByYear W20777831052018 @default.
• W2077783105 countsByYear W20777831052019 @default.
• W2077783105 countsByYear W20777831052020 @default.
• W2077783105 countsByYear W20777831052021 @default.
• W2077783105 countsByYear W20777831052022 @default.
• W2077783105 crossrefType "journal-article" @default.
• W2077783105 hasAuthorship W2077783105A5034036353 @default.
• W2077783105 hasAuthorship W2077783105A5061442573 @default.
• W2077783105 hasAuthorship W2077783105A5077126502 @default.
• W2077783105 hasConcept C121332964 @default.
• W2077783105 hasConcept C124668440 @default.
• W2077783105 hasConcept C131779359 @default.
• W2077783105 hasConcept C133571119 @default.
• W2077783105 hasConcept C178790620 @default.
• W2077783105 hasConcept C185592680 @default.
• W2077783105 hasConcept C18903297 @default.
• W2077783105 hasConcept C20621625 @default.
• W2077783105 hasConcept C2777010268 @default.
• W2077783105 hasConcept C2777339483 @default.
• W2077783105 hasConcept C2778530040 @default.
• W2077783105 hasConcept C2778689049 @default.
• W2077783105 hasConcept C2779965526 @default.
• W2077783105 hasConcept C3019471444 @default.
• W2077783105 hasConcept C38503535 @default.
• W2077783105 hasConcept C45803636 @default.
• W2077783105 hasConcept C52703039 @default.
• W2077783105 hasConcept C62520636 @default.
• W2077783105 hasConcept C71240020 @default.
• W2077783105 hasConcept C7602139 @default.
• W2077783105 hasConcept C8010536 @default.
• W2077783105 hasConcept C86803240 @default.
• W2077783105 hasConceptScore W2077783105C121332964 @default.
• W2077783105 hasConceptScore W2077783105C124668440 @default.
• W2077783105 hasConceptScore W2077783105C131779359 @default.
• W2077783105 hasConceptScore W2077783105C133571119 @default.
• W2077783105 hasConceptScore W2077783105C178790620 @default.
• W2077783105 hasConceptScore W2077783105C185592680 @default.
• W2077783105 hasConceptScore W2077783105C18903297 @default.
• W2077783105 hasConceptScore W2077783105C20621625 @default.
• W2077783105 hasConceptScore W2077783105C2777010268 @default.
• W2077783105 hasConceptScore W2077783105C2777339483 @default.
• W2077783105 hasConceptScore W2077783105C2778530040 @default.

• next