13C and1H NMR study of molecular motion in the deoxycholic acid-ferrocene solid inclusion compound

1992 ◽  
Vol 41 (3) ◽  
pp. 462-467 ◽  
Author(s):  
Z. Narankevich ◽  
A. L. Blyumenfel'd ◽  
V. I. Sokolov
Keyword(s):  
Inclusion Compound ◽  
Molecular Motion ◽  
Deoxycholic Acid ◽  
Solid Inclusion ◽  
Nmr Study

The hexagonal phase of the 3:2:1 canal complex between deoxycholic acid, ethanol and water: an inclusion compound with hydrophilic channels

1978 ◽  
Vol 34 (6) ◽  
pp. 1928-1933 ◽  
Author(s):  
S. Candeloro De Sanctis ◽  
V. M. Coiro ◽  
E. Giglio ◽  
S. Pagliuca ◽  
N. V. Pavel ◽  
...  
Keyword(s):  
Inclusion Compound ◽  
Deoxycholic Acid ◽  
Hexagonal Phase

scholarly journals Solid-state studies and antioxidant properties of the γ-cyclodextrin·fisetin inclusion compound

2017 ◽  
Vol 13 ◽  
pp. 2138-2145 ◽  
Author(s):  
Joana M Pais ◽  
Maria João Barroca ◽  
Maria Paula M Marques ◽  
Filipe A Almeida Paz ◽  
Susana S Braga
Keyword(s):  
Inclusion Compound ◽  
Antioxidant Properties ◽  
Physicochemical Analysis ◽  
Water Soluble ◽  
Solid Inclusion ◽  
Human Consumption ◽  
X Ray Diffraction ◽  
Wide Range ◽  
Soluble Solid ◽  
Cp Mas Nmr

Fisetin is a natural antioxidant with a wide range of nutraceutical properties, including antidiabetic, neuroprotecting, and suppression or prevention of tumors. The present work describes the preparation of a water-soluble, solid inclusion compound of fisetin with gamma-cyclodextrin (γ-CD), a cyclic oligosaccharide approved for human consumption. A detailed physicochemical analysis of the product is carried out using elemental analysis, powder X-ray diffraction (PXRD), Raman, infrared and 13C{1H} CP-MAS NMR spectroscopies, and thermal analysis (TGA) to verify fisetin inclusion and to present a hypothetical structural arrangement for the host–guest units. The antioxidant activity of the γ-CD·fisetin inclusion compound is evaluated by the DPPH assay.

scholarly journals 1H and13C NMR study of phase transition and molecular motion in ionic liquids forming lyotropic liquid-crystalline ionogels

2011 ◽  
Vol 51 (3) ◽  
pp. 212-220 ◽  
Author(s):  
Vytautas Balevičius ◽  
Lukas Džiaugys ◽  
Feliksas Kuliešius ◽  
Arūnas Maršalka
Keyword(s):  
Phase Transition ◽  
Ionic Liquids ◽  
Liquid Crystalline ◽  
Molecular Motion ◽  
1H And13c Nmr ◽  
Nmr Study

Nitrogen‐14 NMR study of molecular motion in rubidium and cesium cyanide

1983 ◽  
Vol 78 (2) ◽  
pp. 1000-1002 ◽  
Author(s):  
Roderick E. Wasylishen ◽  
Kenneth R. Jeffrey
Keyword(s):  
Molecular Motion ◽  
Nmr Study

Crystal structure of the 2:1 inclusion compound between deoxycholic acid and quadricyclane

1984 ◽  
Vol 1 (4) ◽  
pp. 329-337 ◽  
Author(s):  
Vincenza Maria Coiro ◽  
Edoardo Giglio ◽  
Fernando Mazza ◽  
Nicolae Viorel Pavel
Keyword(s):  
Crystal Structure ◽  
Inclusion Compound ◽  
Deoxycholic Acid

Structure of the 4:1 inclusion compound between deoxycholic acid and (E)-p-dimethylaminoazobenzene

1982 ◽  
Vol 38 (10) ◽  
pp. 2615-2620 ◽  
Author(s):  
V. M. Coiro ◽  
E. Giglio ◽  
F. Mazza ◽  
N. V. Pavel ◽  
G. Pochetti
Keyword(s):  
Inclusion Compound ◽  
Deoxycholic Acid

Proton NMR study of molecular motion in solid SiH4

1976 ◽  
Vol 42 (3) ◽  
pp. 445-448 ◽  
Author(s):  
G. Janssens ◽  
P. van Hecke ◽  
L. van Gerven
Keyword(s):  
Molecular Motion ◽  
Proton Nmr ◽  
Nmr Study

1H Nmr Study Of Molecular Motions In Thiourea Pyridinium Nitrate Inclusion Compound

2004 ◽  
Vol 59 (7-8) ◽  
pp. 505-509 ◽  
Author(s):  
M. Grottela ◽  
A. Kozak ◽  
A. Pajzderska ◽  
W. Szczepański ◽  
J. Wąsicki
Keyword(s):  
Inclusion Compound ◽  
Activation Parameters ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
High Temperature Phase ◽  
Spin Lattice Relaxation ◽  
Temperature Phase ◽  
Spin Lattice ◽  
Nmr Study ◽  
Pyridinium Cations

The proton NMR second moment and spin-lattice relaxation time have been studied for polycrystalline thiourea pyridinium nitrate inclusion compound and its perdeuderated analogues in a wide temperature range. The reorientation of two dynamically different pyridinium cations around their pseudohexagonal symmetry axis taking place over inequivalent barriers have been revealed in the low-temperature phase. Activation parameters for these motions have been derived. A symmetrization of the potential barriers has been observed at the transition from intermediate to the high temperature phase. The motion of thiourea molecules has been also evidenced, but could not be unambiguously described.

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