Chiral Molecular Glass: Synthesis and Characterization of Enantiomerically Pure Thiophene-Based [7]Helicene

2004 ◽  
Vol 10 (24) ◽  
pp. 6531-6539 ◽  
Author(s):  
Makoto Miyasaka ◽  
Andrzej Rajca ◽  
Maren Pink ◽  
Suchada Rajca
Keyword(s):  
Synthesis And Characterization ◽  
Enantiomerically Pure ◽  
Molecular Glass

Synthesis and characterization of a novel monolithic electro-optic molecular glass

2020 ◽  
Vol 277 ◽  
pp. 128324
Author(s):  
Qi Zhang ◽  
Qiao Zhou ◽  
Shuangling Wu ◽  
Xingxin Xu ◽  
Heyan Huang ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Molecular Glass ◽  
Electro Optic

Stereoselective synthesis and characterization of new enantiomerically pure phosphoric acids

Chirality ◽  
2009 ◽  
pp. NA-NA
Author(s):  
Cinzia Biaggi ◽  
Maurizio Benaglia ◽  
Rita Annunziata ◽  
Sergio Rossi
Keyword(s):  
Stereoselective Synthesis ◽  
Synthesis And Characterization ◽  
Enantiomerically Pure ◽  
Phosphoric Acids

Synthesis and Characterization of Enantiomerically Pure Menthylamines and Their Isocyanates

Synthesis ◽  
2003 ◽  
pp. 2689-2694 ◽  
Author(s):  
Siegfried R. Waldvogel ◽  
Matthias C. Schopohl ◽  
Klaus Bergander ◽  
Olga Kataeva ◽  
Roland Fröhlich
Keyword(s):  
Synthesis And Characterization ◽  
Enantiomerically Pure

Synthesis and Characterization of Enantiopure Tribenzotriquinacene Dimers Bearing a Platinum-Diacetylene Unit

Synthesis ◽  
2019 ◽  
Vol 51 (10) ◽  
pp. 2116-2121 ◽  
Author(s):  
Wen-Rong Xu ◽  
Xin-Rui Wang ◽  
Hak-Fun Chow ◽  
Dietmar Kuck
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
31P Nmr ◽  
Synthesis And Characterization ◽  
31P Nmr Spectroscopy ◽  
Enantiomerically Pure ◽  
X Ray ◽  
Esi Mass Spectrometry ◽  
13C And 31P Nmr

A pair of enantiomerically pure metallodimers containing two deeply concave tribenzotriquinacene (TBTQ) units linked by a platinum-diacetylene unit were synthesized. Such linear metal-centered TBTQ dimers are considered as edges of metallosquares and metallocubes that bear four or eight mutually syn-oriented TBTQ bowls at their tips, respectively. The structures of the metallodimers were characterized by 1H, 13C and 31P NMR spectroscopy, ESI mass spectrometry, and circular dichroism. The single X-ray crystal structure of (+)-enantiomer confirmed the absolute configuration of the metallodimers and revealed an edge (tip-to-tip) length of 18.456 Å and an approximated syn-orientation of the two TBTQ bowls in the solid state.

Synthesis and Characterization of N-Donor-Functionalized Enantiomerically Pure Pentadienyl Ligands Derived from (1R)-(−)-Myrtenal

2014 ◽  
Vol 34 (1) ◽  
pp. 146-158 ◽  
Author(s):  
Ann Christin Fecker ◽  
Bogdan-Florin Crăciun ◽  
Peter Schweyen ◽  
Matthias Freytag ◽  
Peter G. Jones ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Enantiomerically Pure

Synthesis by oxidative polymerization of optically active, regioregular polythiophene from quinquethiophene monomer bearing chiral and n-dodecyl groups as substituents

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Luigi Angiolini ◽  
Alice Brazzi ◽  
Valeria Grenci ◽  
Elisabetta Salatelli
Keyword(s):  
Molecular Weight ◽  
Spectral Region ◽  
Alkyl Group ◽  
Alkyl Chain ◽  
Oxidative Polymerization ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Polymeric Derivative ◽  
Enantiomerically Pure

AbstractThe synthesis and characterization of an optically active quinquethiophene monomer 3,3””-didodecyl-4’,3”’-di[(S)-(+)-2-methylbutyl]- 2,2’:5’,2”:5”,2”’:5”’,2””-quinquethiophene [(S)-(+)-DDDMBQT], bearing at the C-β positions of thiophene rings both linear C12 alkyl chain and chiral, enantiomerically pure, alkyl group is described. The polymerization of [(S)-(+)-DDDMBQT] by oxidative mechanism has been optimized in terms of yield of soluble polymer with high molecular weight.The obtained polymeric derivative displays enhanced conjugation extension with respect to similar poly(3-alkylthiophene)s reported in the literature and optical activity in the spectral region related to the chromophore absorptions when in the microaggregate state, indicative of the presence of supramolecular chiral conformations.

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