Vibrational optical activity of chiral carbon nanoclusters treated by a generalized π-electron method

2014 ◽  
Vol 140 (4) ◽  
pp. 044112 ◽  
Author(s):  
Péter R. Nagy ◽  
Péter R. Surján ◽  
Ágnes Szabados
Keyword(s):  
Optical Activity ◽  
Chiral Carbon ◽  
Carbon Nanoclusters ◽  
Generalized Π

Theoretical vibrational optical activity of chiral carbon nanoparticles: Fullerenes and carbon nanotubes

2014 ◽  
Vol 251 (12) ◽  
pp. 2451-2456 ◽  
Author(s):  
Péter R. Nagy ◽  
László Biró ◽  
János Koltai ◽  
Péter R. Surján ◽  
Ágnes Szabados ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Activity ◽  
Carbon Nanoparticles ◽  
Chiral Carbon

Resonance Raman Optical Activity of Single Walled Chiral Carbon Nanotubes

2016 ◽  
Vol 120 (28) ◽  
pp. 5527-5538 ◽  
Author(s):  
Péter R. Nagy ◽  
János Koltai ◽  
Péter R. Surján ◽  
Jenő Kürti ◽  
Ágnes Szabados
Keyword(s):  
Carbon Nanotubes ◽  
Optical Activity ◽  
Resonance Raman ◽  
Raman Optical Activity ◽  
Chiral Carbon

Sm based initiators for the ring-opening polymerization of L-lactide

e-Polymers ◽  
2001 ◽  
Vol 1 (1) ◽  
Author(s):  
Seema Agarwal ◽  
Marc Karl ◽  
Kurt Dehnicke ◽  
Andreas Greiner
Keyword(s):  
Carbon Atom ◽  
Optical Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Optically Active ◽  
Polymerization Catalysts ◽  
Time Intervals ◽  
Chiral Carbon

AbstractRing-opening polymerizations of L-lactide were carried out in the presence of Sm(II) (SmI2/Sm) and the Sm(III) complex [Sm(m-Cl){N(SiMe3)2}2(THF)]2 (Me: CH3, THF: tetrahydrofuran). The polymerizations were performed using different mole ratios of monomer to initiator and for different time intervals. The complexes were found to be active polymerization catalysts and led to the synthesis of semicrystalline, optically active poly(L-lactide) retaining about 95.5% of the optical activity. This shows that - with the initiator systems used - polymerization proceeds with the retention of configuration at the chiral carbon atom.

Rectification in Chiral Carbon Nanotubes with Hot Electron Injection

2020 ◽  
Vol 131 (3) ◽  
pp. 456-459
Author(s):  
S. S. Abukari ◽  
R. Musah ◽  
M. Amekpewu ◽  
S. Y. Mensah ◽  
N. G. Mensah ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Injection ◽  
Hot Electron ◽  
Hot Electron Injection ◽  
Chiral Carbon

Outer-sphere interaction of (S)-asparagine and (S)-glutamine with [Co(NH3)6]3+ ion and its possible role in ligand substitution

1987 ◽  
Vol 52 (10) ◽  
pp. 2457-2459
Author(s):  
František Jursík
Keyword(s):  
Amino Acids ◽  
Transition Region ◽  
Alkaline Medium ◽  
Optical Activity ◽  
Substitution Reaction ◽  
Outer Sphere ◽  
Ligand Substitution ◽  
Cotton Effect ◽  
Negative Cotton Effect

Optical activity of the achiral cation [Co(NH3)6]3+ is induced both by (S)-AsnONa and (S)-GlnONa, as shown by a negative Cotton effect in the 1A1g → 1T1g transition region. An outer-sphere interaction by three-point attachment of the amides can explain the fact that substitution reaction of [Co(NH3)6]3+ with the mentioned amides in an alkaline medium is unusually slow as compared with other amino acids.

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