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ESR spectra of 4‐phenyl‐1,2,3,5‐diselenadiazolyl, PhCN 2 Se 2 · , and the first diselenadiazolyl metal complex, Pt[PhCN 2 Se 2 ][PPh 3 ] 2
Author(s) -
Rawson Jeremy M.,
Banister Arthur J.,
May Iain
Publication year - 1994
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260320810
Subject(s) - chemistry , benzonitrile , metal , radical , spectral line , sulfur , crystallography , medicinal chemistry , stereochemistry , organic chemistry , physics , astronomy
Anisotropic ESR spectra (THF, frozen glass, 77 K) of PhCN 2 Se 2 ˙ provide valuable information about the electronic structure of the diselenadiazolyl radical. Reaction of PhCN 2 Se 2 ˙ with Pt(PPh 3 ) 3 in CH 2 Cl 2 yielded the first diselenadiazolyl–metal complex, Pt[PhCN 2 Se 2 ][PPh 3 ] 2 . The electronic structures of both compounds are described in comparison with their sulphur analogues and the isoelectronic SN 2 E 2 +˙ radicals (E = S, Se).