Atropisomerism, biphenyls, and fluorine: a comparison of rotational barriers and twist angles

F Leroux - ChemBioChem, 2004 - Wiley Online Library
Axially chiral biaryl compounds are attracting more and more attention. One reason is the
growing number of known biologically active natural products that contain the biaryl motif …

Twist angles and rotational energy barriers of biphenyl and substituted biphenyls

F Grein - The Journal of Physical Chemistry A, 2002 - ACS Publications
Using B3LYP/6-311+ G* and other methods, twist angles and torsional energies were
obtained for biphenyl (BP), 2-halogen BPs, 2, 2 '-dihalogen BPs, and 3, 3 '-dihalogen BPs …

Wide band gap diketopyrrolopyrrole-based conjugated polymers incorporating biphenyl units applied in polymer solar cells

W Li, A Furlan, WSC Roelofs, KH Hendriks… - Chemical …, 2014 - pubs.rsc.org
Incorporating biphenyls as co-monomers in electron-deficient diketopyrrolopyrrole (DPP)
conjugated polymers enables widening the optical band gap to 1.70 eV. Power conversion …

Antiferroelectric switchable mesophases of nonchiral bent-core liquid crystals containing fluorinated central cores

G Dantlgraber, D Shen, S Diele… - Chemistry of …, 2002 - ACS Publications
A new series of liquid-crystalline bent-core molecules comprising a central 3, 4 '-
disubstituted biphenyl unit (biphenyl 3, 4 '-bis-4-[4-dodecyl (oxy) benzoyloxy] benzoates) at …

N‐(4‐Biphenylmethyl)imidazoles as Potential Therapeutics for the Treatment of Prostate Cancer: Metabolic Robustness Due to Fluorine Substitution?

F Leroux, TU Hutschenreuter, C Charrière… - Helvetica chimica …, 2003 - Wiley Online Library
Abstract 3, 3′, 5, 5′‐And 2, 2′, 6, 6′‐tetrafluoro‐substituted 1‐[(1, 1′‐biphenyl]‐4‐yl)
methyl]‐1H‐imidazoles were synthesized as inhibitors of 17α‐hydroxylase‐C17, 20‐lyase …

Structural Modification of Silicon‐Bridged Ladder Stilbene Oligomers and Distyrylbenzenes

H Yamada, C Xu, A Fukazawa… - Macromolecular …, 2009 - Wiley Online Library
Two kinds of the totally alkyl‐substituted ladder π‐conjugated compounds, the totally hexyl‐
substituted silicon‐bridged stilbene trimer 1 and the totally propyl‐substituted silicon‐and …

The remarkable configurational stability of ortho, ortho′-tetrafluoro substituted biphenyls: 2, 2′, 4, 4′, 6, 6′-hexafluorobiphenyl-3, 3′-dicarboxylic acid as a model

F Leroux, M Maurin, N Nicod, R Scopelliti - Tetrahedron letters, 2004 - Elsevier
Optically active 2, 2′, 4, 4′, 6, 6′-hexafluorobiphenyl-3, 3′-dicarboxylic acid was
obtained through its brucine salt. The half-life time for racemization was determined at …

NMR spectral analysis of second-order 19F-19F, 19F-1H and 13C-19F coupling constants in pentafluorobenzene and tetrafluoro-4-(morpholino) pyridine using …

M Edgar, F Zeinali, M Mojally, C Hughes, S Riaz… - Journal of Fluorine …, 2019 - Elsevier
A new and simple to use line-shape analysis method ANATOLIA (ANAlysis of TOtal
LIneshApe) optimised all and 19 F-19 F and 19 F-1 H coupling constants in …

NMR studies of solutes in liquid crystals: Small flexible molecules

G Celebre, M Longeri - NMR of Ordered Liquids, 2003 - Springer
The study of the conformational distribution of “flexible” molecules (ie, molecules displaying
large-amplitude, low-frequency torsional motions) in the liquid phase represents a …

Three atropisomers of biphenyl: twist by tunable para substituents

R Karupnaswamy, P Ganesan - Journal of Chemical Sciences, 2018 - Springer
The geometrical twist of aryl-aryl bond in biphenyl by weakly coordinating anion and selone
at the para position has not been clear so far. We report here the synthesis and investigation …