By Lin Pu
Chiral fabrics were studied within the division of Chemistry on the collage of Virginia for purposes in parts like uneven catalysis, enantioselective fluorescent sensing, and optical/electrical fabrics. Optically energetic 1,1 -binaphthyl molecules are used to construct novel chiral polymers, dendrimers, macrocycles, and acyclic molecules. 1,1 -Binaphthyl molecules are selected as a result of their remarkably solid chiral configuration in addition to their excessive uneven inductions in lots of methods. during this e-book, either the elemental wisdom in regards to the 1,1 -binaphthyl molecules and the synthesis of the structurally different 1,1 -binaphthyl-based fabrics are defined. The functions of those fabrics in numerous fields also are mentioned. This publication will function a reference for graduate scholars in addition to different execs operating within the comparable fields. creation approximately 1,1 -Binaphthyls major Chain Chiral-Conjugated Polymers Polybinaphthyls in uneven Catalysis uneven Catalysis through BINOL and Its Non-Polymeric Derivatives Enantioselective Fluorescent Sensors in response to 1,1 -Binaphthyl Derived Dendrimers, Small Molecules and Macrocycles Miscellaneous reviews on fabrics relating to 1,1 -Binaphthyls
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Extra info for 1, 1-binaphthyl-based Chiral Materials: Our Journey
37. 6). Using the Suzuki coupling produces higher molecular weight polymers than using the Ni(0) complex. 5). 0, THF). 7. 1 couples with both enantiomers of rac-DBDH equally to form the oligomer with no enrichment of either enantiomer in the unreacted rac-DBDH. 1 should contain randomly distributed R and S binaphthyl units in the polymer chain. There should be no stereoselectivity in this polymerization. 1 allows the oligomer to contain excess (R)-binaphthyl units. 4. 51 (Mw = 21,500) is conducted in collaboration with Jen.
26. O O O O (Continued) about twice as much as the GPC molecular weights. Thus, because of the signiﬁcant diﬀerence between the structure of these polydendrimers and that of the polystyrene standards, the GPC analysis greatly underestimates the molecular weights of these materials. 38 containing neopentyl groups. 38, the GPC molecular weight data relative to polystyrene standards matches that obtained from the end group analysis of its NMR spectrum. 27). 11. Molecular weights of the polydendrimers.
11a–c and their molecular weights based on GPC analysis. 7 −2787 9in x 6in Catalysts spi-b765 Monomers Main Chain Chiral-Conjugated Polymers Polymers a. Molar rotation [Φ] = [α]Mw /100 (Mw : molecular weight of the polymer repeating unit). 4. 11c with those by the LLS study. 5. 14. 11c, respectively, indicating no signiﬁcant extension of conjugation from the repeating units to the polymers. 11a–c are mostly independent of the molecular weight and steric structure. 13. 14, which can disturb the planarity of the molecule and reduce its eﬀective conjugation.
1, 1-binaphthyl-based Chiral Materials: Our Journey by Lin Pu