Conformational investigation on retinal by PCILO method

1981 ◽  
Vol 90 (6) ◽  
pp. 485-495
Author(s):  
M M Dhingra ◽  
Anil Saran
Keyword(s):  
Conformational Investigation ◽  
Pcilo Method

Synthesis and conformational investigation of β-turn forming tetra- and hexapeptides

1982 ◽  
Vol 47 (7) ◽  
pp. 1884-1892
Author(s):  
A. N. Abdel Rahman ◽  
S. Abdel Rahman
Keyword(s):  
Energy Transfer ◽  
Phase Method ◽  
Conformational Study ◽  
Poly Ethylene Glycol ◽  
High Solubility ◽  
Liquid Phase Method ◽  
Conformational Investigation ◽  
Transfer Method ◽  
Poly Ethylene ◽  
Good Agreement

Tetra- and hexapeptides containing Pro-Gly or Gly-Pro or Aib-Pro in their sequences were synthesized using the liquid-phase method. The high solubility of the poly(ethylene glycol) bound peptides in water and in organic solvents enables the application of the singlet-singlet energy transfer method for conformational investigation of these peptides. The conformational study in solid state by IR and in solution by CD were carried out in parallel to the energy transfer method. The qualitative results generated by IR and CD were found to be in good agreement with the quantitative end-to-end distances given by the energy transfer method.

A complete structural and conformational investigation of procyanidin A2 dimer

1996 ◽  
Vol 37 (12) ◽  
pp. 2015-2018 ◽  
Author(s):  
Nicolas Vivas ◽  
Yves Glories ◽  
Isabelle Pianet ◽  
Bernard Barbe ◽  
Michel Laguerre
Keyword(s):  
Conformational Investigation

Cellulose organic solvents: V. Conformational aspects of N,N-dimethyl ethanolamine N-oxide in its crystalline and diluted states

1984 ◽  
Vol 62 (1) ◽  
pp. 6-10 ◽  
Author(s):  
E. R. Maia ◽  
A. Péguy ◽  
S. Pérez
Keyword(s):  
Tertiary Amine ◽  
Amine Oxide ◽  
Direct Methods ◽  
Monoclinic Space Group ◽  
Cyclic Form ◽  
Asymmetric Unit ◽  
Ir And Nmr Spectroscopy ◽  
Conformational Investigation ◽  
Intramolecular Hydrogen ◽  
Strong Intramolecular Hydrogen Bond

N,N-Dimethyl ethanolamine N-oxide (DMEAO) belongs to the class of tertiary amine oxide molecules that are good solvents for cellulose, although not being cyclic. Crystallographic investigation shows that anhydrous DMEAO is monoclinic, space group Cc, a = 25.725(9), b = 7.023(4), c = 9.483(5) Å, β = 101.16(10)°, Z = 12. The crystal structure has been solved by direct methods and refined to a final R value of 0.063 for 575 observed reflexions. Three independent molecules are found within the asymmetric unit; one of these displays a pseudo-cyclic form dictated by the occurrence of a strong intramolecular hydrogen bond. Conformational investigation of DMEAO in solution, using ir and nmr spectroscopy shows that this pseudo-cyclic form is more likely to occur in diluted states. These findings are related to the ability of this tertiary amine oxide to act as a good solvent, up to a water content of one water molecule per DMEAO molecule.

Conformational investigation of α, β-dehydropeptides

2009 ◽  
Vol 39 (3) ◽  
pp. 218-222 ◽  
Author(s):  
EWA CISZAK ◽  
GRZEGORZ PIETRZYÑSKI ◽  
BARBARA RZESZOTARSKA
Keyword(s):  
Conformational Investigation

Structural and conformational investigation of carrageenans

Biopolymers ◽  
1980 ◽  
Vol 19 (12) ◽  
pp. 2165-2175 ◽  
Author(s):  
Cyrille Rochas ◽  
Marguerite Rinaudo ◽  
Marc Vincendon
Keyword(s):  
Conformational Investigation

Conformational investigation of 1,8-disubstituted naphthalenes as solutes by Kerr effect and dipole moment methods

1994 ◽  
Vol 326 ◽  
pp. 17-24 ◽  
Author(s):  
S.B. Bulgarevich ◽  
N.A. Ivanova ◽  
D.Ya. Movshovich ◽  
A. Mannschreck ◽  
C. Kiefl
Keyword(s):  
Dipole Moment ◽  
Kerr Effect ◽  
Moment Methods ◽  
Conformational Investigation

scholarly journals Synthesis and conformational investigation of tetrapeptide analogues of the fragment B23-B26 of insulin

Tetrahedron ◽  
2004 ◽  
Vol 60 (40) ◽  
pp. 8929-8936 ◽  
Author(s):  
Lígia M. Rodrigues ◽  
José I. Fonseca ◽  
Hernâni L.S. Maia
Keyword(s):  
Conformational Investigation
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