Nuclear magnetic resonance in complexes exhibiting second-order paramagnetism

1968 ◽  
pp. 419 ◽  
Author(s):  
J. Chatt ◽  
G. J. Leigh ◽  
D. M. P. Mingos ◽  
E. W. Randall ◽  
D. Shaw
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Second Order ◽  
Nuclear Magnetic

Second-order dipolar order in magic-angle spinning nuclear magnetic resonance

2011 ◽  
Vol 135 (15) ◽  
pp. 154507 ◽  
Author(s):  
Jacco D. van Beek ◽  
Adrian Hemmi ◽  
Matthias Ernst ◽  
Beat H. Meier
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magic Angle Spinning ◽  
Second Order ◽  
Magic Angle ◽  
Dipolar Order ◽  
Angle Spinning ◽  
Nuclear Magnetic

Quadrupoleffekte der magnetischen Kernresonanz an 11B in Bor-Stickstoffverbindungen

1969 ◽  
Vol 24 (4) ◽  
pp. 566-572 ◽  
Author(s):  
Klaus Wiedemann ◽  
Jürgen Voitländer
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Quadrupole Interaction ◽  
Second Order ◽  
Coupling Constants ◽  
Quadrupole Coupling ◽  
Wide Line ◽  
Nuclear Quadrupole ◽  
Asymmetry Parameters ◽  
Nuclear Magnetic

Abstract First and second-order quadrupole effects of the 11B nuclear magnetic resonance have been measured in polycrystalline samples of dimere dimethylaminoboranes and tetramethylboracene. With the theory of powder patterns for first and second-order quadrupole interaction the nuclear quadrupole coupling constants e2 q Q/h and asymmetry parameters η of 11B have been determined. For these measurements boron-free inserts had to be constructed for the probes of the Varian Wide Line Spectrometer DA 60.

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