The mass spectra of some chlorinated aromatic pesticidal compounds
✍ Scribed by J. A. Sphon; J. N. Damico
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 542 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
✦ Synopsis
Mass spectral studies of some chlorinated aromatic pesticidal compounds are reported. The compounds studied include substituted diphenyl derivatives of methane, ethene and methanol.
The diphenylmethanes are characterized by a relatively intense peak at m/e 165. Comparison of their low voltage spectra with 9-dichloromethylfluorene indicates that this ion has a fluorenyl ion structure.
The structure of the base peak (m/e 246) of the diphenylethenes was investigated by comparing competitive metastable transitions with 9-dichloromethylenefluorene and utilizing defocusing metastables. Additional studies of model compounds suggest that the m/e 246 ion is very complex and is
📜 SIMILAR VOLUMES
## Abstract Carbon‐13 NMR spectra have been obtained for aldrin, dieldrin, isodrin, endrin, heptachlor, heptachlor oxide and 24 of their degradation/conversion products. Chemical shifts were assigned on the basis of (1) comparison among the spectra, (2) single frequency, off‐resonance decoupling ex
## Abstract It is shown that the ‘metastable’ mass spectra of a series of monosubstituted benzenes are consistent with reaction over the lowest available energy surfaces. The non‐occurrence of some qualitatively possible decomposition pathways may therefore be used to place lower limits on the heat
## Abstract The behaviour of some aromatic tri‐ and tetraoxo compounds and of their __p__‐substituted derivatives under electron‐impact has been investigated by means of high and low resolution mass spectrometry, metastable refocusing and deuterium labelling. Some characteristic fragmentation proce