scholarly journals One-bond 1 J (15 N,H) coupling constants at sp2 -hybridized nitrogen of Schiff bases, enaminones and similar compounds: A theoretical study

2020 ◽  
Vol 58 (8) ◽  
pp. 750-762
Author(s):  
Poul Erik Hansen ◽  
Bahjat A. Saeed ◽  
Rita S. Rutu ◽  
Teobald Kupka
Keyword(s):  
Schiff Bases ◽  
Theoretical Study ◽  
Coupling Constants

A theoretical study of multinuclear coupling constants in pyrazoles

2005 ◽  
Vol 43 (12) ◽  
pp. 985-991 ◽  
Author(s):  
Rosa M. Claramunt ◽  
Dionisia Sanz ◽  
Ibon Alkorta ◽  
José Elguero
Keyword(s):  
Theoretical Study ◽  
Coupling Constants

Electronic Structure of Pseudotetrahedral Copper(II) Schiff Base Complexes

1977 ◽  
Vol 32 (5) ◽  
pp. 551-561 ◽  
Author(s):  
John R. Wasson ◽  
H. Wayne Richardson ◽  
William E. Hatfield
Keyword(s):  
Electronic Structure ◽  
Schiff Base ◽  
Schiff Bases ◽  
Opposite Direction ◽  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Schiff Base Complexes ◽  
Hyperfine Coupling Constants ◽  
Structure Correlations

Copper(II) complexes with the Schiff bases formed by condensing t-butyl-, isopropyl-, cyclohexyl- and diphenylmethylamines with salicylaldehyde and 3-methoxy- and 5-nitrosalicyl-aldehyde have been prepared and characterized. The isotropic nuclear hyperfine coupling constants increase in the order t-butyl < isopropyl < cyclohexyl < diphenylmethyl for the N-substituents in the three series of complexes while isotropic g-values increased in the opposite direction. Spectra structure correlations were examined and discussed.

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