Reactions of HCI(g), DCI(g), and HBr(g) with the Adduct Pyrazine-Phosphorus(V) Chloride

Author(s)

Howard Knachel, University of DaytonFollow
Sherry D. Owens, University of Dayton
Steven H. Lawrence, University of Dayton
Mary E. Dolan, University of Dayton
Michael C. Kerby, University of Dayton
Teresa A. Salupo, University of Dayton

Document Type

Article

Publication Date

1986

Publication Source

Inorganic Chemistry

Abstract

In previous communications we have reported the synthesis, molecular structure, and solution properties of the acid-base adduct formed from pyrazine (pz), C₄H₄N₂, and phosphorus (V) chloride, PCl₅. In the solid state the molecule, pz*PCl₅, belongs to point group C_2v with octahedral geometry around phosphorus. The plane of the pyrazine ring bisects the Cl-P-Cl 90° angle, and the P-N bond is unusually long, 2.021 A. In solution of nitromethane, the adduct is in equilibrium with PCl₅ and pz.

This rapid exchange is responsible for a singlet in the ¹H NMR spectrum, even at -100 degrees C.

Because a second nitrogen base site on the adduct is available for further reaction, we have investigated the possibility of coordinating a second mole of acid to the adduct.

Inclusive pages

4606–4608

ISBN/ISSN

0020-1669

Copyright

Copyright © 1986, American Chemical Society

Publisher

American Chemical Society

Volume

25

Peer Reviewed

yes

Issue

25

eCommons Citation

Knachel, Howard; Owens, Sherry D.; Lawrence, Steven H.; Dolan, Mary E.; Kerby, Michael C.; and Salupo, Teresa A., "Reactions of HCI(g), DCI(g), and HBr(g) with the Adduct Pyrazine-Phosphorus(V) Chloride" (1986). Chemistry Faculty Publications. 51.
https://ecommons.udayton.edu/chm_fac_pub/51