Mass spectral fragmentation pattern of 2,2′‐bipyridyls. Part XII. 2,2′‐Selenodipyridine

Abstract

The mass spectrum of 2,2′‐selenodipyridine obtained by electron impact is reported. The base peak in the spectrum is due to the C5H4N+ ion formed principally by rupture of the central bonds. The molecular ion gives rise to a peak of 50% of the intensity of the base peak. Other fragmentations include loss of H, Se and CSe from the molecular ion and HCN from the M‐1 ion.

Pyridineselenolate Complexes of Tin and Lead: Sn(2-SeNC5H4)2, Sn(2-SeNC5H4)4, Pb(2-SeNC5H4)2, and Pb(3-Me3Si-2-SeNC5H3)2. Volatile CVD Precursors to Group IV−Group VI Semiconductors

“…The yields are quantitative, and the primary volatile organic product observed was Py−Se−Py. Both elemental Se and pyridine can also be detected in increasing amounts as the pyrolysis temperature is increased …”

Mass spectral study of substituted allyl aryl and allyl alkyl selenides and some analogous sulfides

“…The EI mass spectra of ethers, sulfides and some selenides are reported in the literature, and the skeletal rearrangements that occur in these compounds are well documented. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] Though organoselenides are known to be toxic, various reagents containing selenium have been increasingly used in organic synthesis especially for the synthesis of complex natural products through highly chemoselective transformations. 23,24 This behaviour of organoselenides is due to the mixed metallic-nonmetallic nature of the selenium atom.…”