Analysis of the EPR Spectrum of N,N'-Tetramethylbenzidine Positive Ion
Journal Article
·
· Journal of Chemical Physics
The electron paramagnetic spectra of the N,N1-tetramethylbenzidine (TMB) positive ion were determined. The hyperfine pattern consists of 11 major groups each split into 6 lines. Crystal violet was deuterated and the corresponding ring-deuterated TMB prepared by cherudcal oxi-dation of the crystal violet. The deuterated TMB spectra confirmed that the major coupling is due to methyl protons. The preparation of 3-cyanopentane-2,4-dione is described. The infrared stretching frequencies of the C an N group in twelve metal complexes of this B- dikatone are recorded. While marked variations in the positicn or the C EPSILON N stretching frequency are found with changes ~ the co-ordination number of the metal 3on, the position of the band is found at 2216.2 plus or minus 1.0 cm/sup -1/ in six tervalent complexes. It appears that the 2p -electrons of the chelate ring are not strongly perturbed by interaction with the 3d orbitals of the metal.
- Research Organization:
- Univ. of Kansas, Lawrence
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-020419
- OSTI ID:
- 4839235
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 10 Vol. 36; ISSN JCPSA6; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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