Lin Pu's 1, 1-binaphthyl-based Chiral Materials: Our Journey PDF

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By Lin Pu

ISBN-10: 1848164114

ISBN-13: 9781848164116

ISBN-10: 1848164122

ISBN-13: 9781848164123

Chiral fabrics were studied within the division of Chemistry on the collage of Virginia for functions in components like uneven catalysis, enantioselective fluorescent sensing, and optical/electrical fabrics. Optically lively 1,1 -binaphthyl molecules are used to construct novel chiral polymers, dendrimers, macrocycles, and acyclic molecules. 1,1 -Binaphthyl molecules are selected due to their remarkably strong chiral configuration in addition to their excessive uneven inductions in lots of tactics. during this publication, either the elemental wisdom in regards to the 1,1 -binaphthyl molecules and the synthesis of the structurally assorted 1,1 -binaphthyl-based fabrics are defined. The purposes of those fabrics in a variety of fields also are mentioned. This ebook will function a reference for graduate scholars in addition to different execs operating within the comparable fields. advent approximately 1,1 -Binaphthyls major Chain Chiral-Conjugated Polymers Polybinaphthyls in uneven Catalysis uneven Catalysis by way of BINOL and Its Non-Polymeric Derivatives Enantioselective Fluorescent Sensors in accordance with 1,1 -Binaphthyl Derived Dendrimers, Small Molecules and Macrocycles Miscellaneous reports on fabrics with regards to 1,1 -Binaphthyls

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Extra resources for 1, 1-binaphthyl-based Chiral Materials: Our Journey

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28). 28. 51. 3). 50, THF). 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.

A well-resolved 1 H NMR spectrum of the polymer is obtained, which is consistent with its structure. The methylene chloride solution of this polymer gives UV absorption at λmax = 328 nm. 5 spin-coated on glass slide shows only a slightly blue shifted UV signal at λmax = 324 nm. This indicates that there is no significant π–π interaction for the polymer in the solid state. It can be attributed to the chiral non-planar binaphthyl units, which reduces the intermolecular interaction. 5 is excited at 328 nm, it shows emissions at λemi = 388 and 407 nm.

6. 39 for more details). 32 contain 6,6 -dihalogen atoms that are introduced for the subsequent cross-coupling polymerization. The two alkyl groups on each of the nitrogens make these compounds more air stable and they also contribute to the solubility of the corresponding chiral-conjugated polymers. 21. 34 is found to be not very stable in air over time. Therefore, this compound is normally freshly prepared before polymerization. 5 4 Br 3 6 7 8 1 2 I Me NH2 NR NR Me NH2 2. 31a: R = C6H13 (S)-BINAM Me NR NR Me 1.

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1, 1-binaphthyl-based Chiral Materials: Our Journey by Lin Pu

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