3348. γ,γ′-Dipyridyl

Nomenclature

CAS number: 553-26-4
4,4′-Bipyridine; 4,4′-dipyridyl.
C10H8N2; mol wt 156.18.
C 76.90%, H 5.16%, N 17.94%.

Description and references

Prepn: Dimroth, Frister, Ber. 55, 3695 (1922); Smith, J. Am. Chem. Soc. 46, 414 (1924).

Chemical structure

Derivative

Dihydrate.

Properties

Bitter needles from water, mp 73°. Anhydr form, mp 111-112°. bp760 304.8°. Freely sol in alc, benzene, chloroform, ether; slightly sol in water. Absorption spectrum: Krumholz, J. Am. Chem. Soc. 73, 3487 (1951).

Derivative

Dihydrochloride.
C10H8N2.2HCl; mol wt 229.11.
C 52.42%, H 4.40%, N 12.23%, Cl 30.95%.

Properties

Prisms from water. Soluble in water; practically insol in ether.