By Lin Pu
Chiral fabrics were studied within the division of Chemistry on the collage of Virginia for purposes 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 good chiral configuration in addition to their excessive uneven inductions in lots of tactics. during this publication, either the basic wisdom in regards to the 1,1 -binaphthyl molecules and the synthesis of the structurally varied 1,1 -binaphthyl-based fabrics are defined. The functions of those fabrics in a variety of fields also are mentioned. This booklet will function a reference for graduate scholars in addition to different pros operating within the similar fields. creation 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 line with 1,1 -Binaphthyl Derived Dendrimers, Small Molecules and Macrocycles Miscellaneous experiences on fabrics concerning 1,1 -Binaphthyls
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Additional info for 1, 1-binaphthyl-based Chiral Materials: Our Journey
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. 51 (Mw = 21,500) is conducted in collaboration with Jen.
18. 5. 1. Copolymerization of Binaphthyl and Oligothiophene Monomers We have incorporated oligothiophene units into the main chain of the polybinaphthyls in order to systematically tune their absorption and emission properties. 25. 25, an alkyl group R1 is introduced to render them soluble in organic solvents. 16. Synthesis of the main chain chiral-conjugated polyaryleneethynylene containing crown ether functions. 24 with a 2,2 -bithiophen-5-yl Grignard reagent is not soluble in organic solvents with R1 being either n C6 H13 or n C18 H37 .
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. The pinhole-free homogeneous thin ﬁlms of this polymer can be obtained by spin-coating its chloroform solution.