ISSN:
1434-4475
Keywords:
Keywords. Mono- and diprotonated bis(2-pyridyl)quinoxaline salts; Structure determination.
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary. 6,7-Dimethyl-2,3-bis(2-pyridyl)quinoxaline presents another example for structural distortions upon protonation and for the dominating influence of the anion on the crystal packing: An intramolecular hydrogen bridge forms upon monoprotonation and with the sterically wrapped tetraphenyloborate anion, whereas upon diprotonation in concentrated HCl a dichloride dihydrate with an interamolecular H-bridge network crystallizes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/PL00013469
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