Circular dichroism and absolute sense of twist of a new chiral C2 symmetric bipyridine ligand, derived from natural tartaric acid

Enantiomer

Volumn 3, Issue 4-5, 1998, Pages 365-370

  Rosini, Carlo ^a   Bertucci, Carlo ^b   Botteghi, Carlo ^c   Magarotto, Roberta ^c  

^a UNIVERSITY OF BASILICATA   (Italy)

^b UNIVERSITY OF PISA   (Italy)

^c CA' FOSCARI UNIVERSITY OF VENICE   (Italy)

Author keywords

Absolute configuration; Bipyridine ligand; C2 symmetry; Circular dichroism; Stereochemistry

Indexed keywords

BIPYRIDINE; LIGAND; TARTARIC ACID;

CIRCULAR DICHROISM; CONFERENCE PAPER; PRIORITY JOURNAL; STEREOCHEMISTRY;

EID: 0032430034     PISSN: 10242430     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Conference Paper

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18. -1, a reasonable value. In addition, as it can be observed analysing both absorption and CD spectra, the high-energy exciton component constitutes the tail of the absorption band, i.e. it shows less intensity with respect to the low-energy component. This is in full agreement with the analysis of Fig. 2(a), where it is clearly shown that the low-energy coupling mode has a higher μ than the low-energy coupling mode.
19. ij is the point-dipole-point-dipole interaction term.
20. Rosini, C., Zandomeneghi, M. and Salvadori, P. Tetrahedron: Asymmetry, 1993, 4, 545.
21. -1).