Intramolecular [NHN]+ and [NHN]− hydrogen bonds in the adduct of 1,8-bis(dimethylamino)naphthalene with 1,8-diamino-2,4,5,7-tetranitronaphthalene
✍ Scribed by Tadeusz Głowiak; Eugeniusz Grech; Zbigniew Malarski; Joanna Nowicka-Scheibe; Lucjan Sobczyk
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 429 KB
- Volume
- 381
- Category
- Article
- ISSN
- 0022-2860
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Low-temperature (120 K) studies of the structure of the DMAN Á DCI adduct indicate that in symmetrical [NHN] hydrogen bridge of 2.571 (1) A ˚length (2.579(2) A ˚at room temperature) there is a disorder of the H-atom occupying two positions at nitrogen atoms with a distance of 0.94(3) A ˚. The compa
## Abstract 1,2,3,4‐tetrachloro‐5,6,7,8‐tetrafluoro‐9‐methyltriptycene was studied in NMR spectra at low temperatures where the methyl group dynamics is frozen. Values of ^5^__J__(^19^F,^1^H), ^1^__J__(^13^C,^1^H), and ^2^__J__(^1^H,^1^H) for the individual methyl protons were measured. They are in