Folded Structures ofl-Leucylglycine Oligopeptides and Their Aggregational Behavior in Aqueous Solution:  Raman Scattering Spectra and Proton NMR Spin−Lattice Relaxation Studies

2008 ◽  
Vol 112 (18) ◽  
pp. 5824-5833 ◽  
Author(s):  
Aki-Hiro Yoshino ◽  
Hiro-Fumi Okabayashi ◽  
Hide-Hiro Kanbe ◽  
Keita Suzuki ◽  
Charmian J. O'Connor
Keyword(s):  
Aqueous Solution ◽  
Raman Scattering ◽  
Proton Nmr ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Scattering Spectra ◽  
Relaxation Studies ◽  
Raman Scattering Spectra ◽  
Folded Structures

A Carbon-13 Spin-Lattice Relaxation Studies of Simple Alkylsulfates and Alkylsulfonates in Aqueous Solution

1983 ◽  
Vol 38 (10) ◽  
pp. 1149-1151
Author(s):  
Kazuhiro Matsushita ◽  
Yukimasa Terada ◽  
Tadayoshi Yoshida ◽  
Hirofumi Okabayashi
Keyword(s):  
Aqueous Solution ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Polar Group ◽  
Progressive Decrease ◽  
Methyl Group ◽  
Critical Micelle Concentrations ◽  
Spin Lattice ◽  
Relaxation Studies

Abstract The C-13 spin-lattice relaxation times (T1) of a series of short-chain n-alkylsulfates and sulfonates in D2O solutions were measured at various concentrations. Even for ethylsulfate and n-propylsulfonate ions, inflections, due to association, in the reciprocal of the T1 vs. the inverse concentration plots were observed. The critical micelle concentrations (CMC's) of ethyl and butylsulfates are 3.0 and 2.5 mol/l, respectively, and those of propyl and butylsulfonate 2.3 and 1.9 mol/l, respectively. For the simple alkylsulfates, below the CMC a progressive decrease in T1 from the terminal methyl group towards the polar group was observed.

Proton NMR spin-lattice relaxation studies of hydridometal clusters of ruthenium and osmium

1987 ◽  
Vol 26 (15) ◽  
pp. 2551-2552 ◽  
Author(s):  
Silvio Aime ◽  
Mauro Botta ◽  
Roberto Gobetto ◽  
Domenico Osella
Keyword(s):  
Proton Nmr ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Relaxation Studies

Spin-lattice relaxation studies on semiquinone ions

1972 ◽  
Vol 76 (5) ◽  
pp. 207-220 ◽  
Author(s):  
K. V. Lingam ◽  
P. G. Nair ◽  
Balu Venkataraman
Keyword(s):  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Relaxation Studies

NQR Relaxation Studies on Halogenomethyl Groups in Halogenoacetates

1998 ◽  
Vol 53 (6-7) ◽  
pp. 480-483 ◽  
Author(s):  
Maria Zdanowska-Fnjczek
Keyword(s):  
Room Temperature ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Effect Of Temperature ◽  
Relaxation Theory ◽  
Temperature Range ◽  
Spin Lattice ◽  
Relaxation Studies

Abstract The effect of temperature on the chlorine NQR spin-lattice relaxation times in CsH(ClH2-CCOO)2 , KH(Cl3 CCOO) 2 and N(CH3)4 H(ClF2CCOO)2 has been studied in the temperature range 77 K to room temperature. The results were discussed on the basis of NQR relaxation theory.

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