scholarly journals Methyl andt-butyl group reorientation in planar aromatic solids: Low-frequency nuclear magnetic resonance relaxometry and x-ray diffraction

2003 ◽  
Vol 118 (24) ◽  
pp. 11129-11138 ◽  
Author(s):  
Peter A. Beckmann ◽  
Carolyn A. Buser ◽  
Kathleen Gullifer ◽  
Frank B. Mallory ◽  
Clelia W. Mallory ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Low Frequency ◽  
X Ray Diffraction ◽  
X Ray ◽  
Butyl Group ◽  
Nuclear Magnetic Resonance Relaxometry ◽  
Nuclear Magnetic

scholarly journals Methyl and t-Butyl Group Reorientation in Planar Aromatic Solids: Low-Frequency Nuclear Magnetic Resonance Relaxometry and X-Ray Diffraction

ChemInform ◽  
2003 ◽  
Vol 34 (46) ◽  
Author(s):  
Peter A. Beckmann ◽  
Carolyn A. Buser ◽  
Kathleen Gullifer ◽  
Frank B. Mallory ◽  
Clelia W. Mallory ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Low Frequency ◽  
X Ray Diffraction ◽  
X Ray ◽  
Butyl Group ◽  
Nuclear Magnetic Resonance Relaxometry ◽  
Nuclear Magnetic

Tautomerism of bis(2-benzothiazolyl)methanes

1988 ◽  
Vol 66 (6) ◽  
pp. 1467-1473 ◽  
Author(s):  
Carmen Avendaño ◽  
María Teresa Ramos ◽  
José Elguero ◽  
María Luisa Jimeno ◽  
Juana Bellanato ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Infrared Spectroscopy ◽  
Magnetic Resonance ◽  
Diffraction Analysis ◽  
X Ray Diffraction ◽  
Methyl Derivative ◽  
Model Compounds ◽  
X Ray ◽  
Nuclear Magnetic

Tautomerism of dibenzothiazolylmethane (1) and its C-methyl derivative (2) has been studied by 1H nuclear magnetic resonance, ultraviolet, and infrared spectroscopy using C,C-dimethyl (3) and N-methyl (4) derivatives as model compounds of the "CH" and "NH" forms, respectively. X-ray diffraction analysis of the "fixed" N-methyl derivative 4 shows that it corresponds to the Z-sE isomer 4b2. The CH tautomers are unstable in solution and they slowly isomerize into a mixture of NH tautomers that depends on the solvent and on the C-substituent (H or CH3).

Structure of nepetalic acid in the solid state and in solution by x-ray diffraction and nuclear magnetic resonance analysis

1981 ◽  
Vol 46 (16) ◽  
pp. 3302-3305 ◽  
Author(s):  
Edmund J. Eisenbraun ◽  
Clinton E. Browne ◽  
Ernest L. Eliel ◽  
David L. Harris ◽  
Asadur Rahman ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Resonance Analysis ◽  
Nuclear Magnetic
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