148599-68-2Relevant academic research and scientific papers
PHOSPHORUS-NITROGEN-SELENIUM RING SYSTEMS
Chivers, Tristram,Doxsee, Daniel D.
, p. 139 - 142 (2007/10/02)
Diphosphadiselenatetrazocines, 1,5-R4P2N4Se2 (R = Me, Et, Ph) and 1,3-R4P2N4Se2 (R = Me, Et), have been prepared in good combined yields from the cyclocondensation of R2PN2(SiMe3)3 with 'SeCl3'.The compound 1,5-Ph4P2N4Se2 dissociates into R2PN2Se radicals identified by ESR spectroscopy.Metal complexes (Ph3P)2M(Se2N4P2Ph4) (M = Pt, Pd) have been prepared from the reaction of 1,5-Ph4P2N4Se2 with (Ph3P)2PtC2H4 and (Ph3P)4Pd, respectively.The Se,Se'-dialkyl derivatives 1,5-Ph4P2N4Se2R2 undergo isomerization to produce 1,3-Ph4P2N4Se2R2 in the solid-state (R = Me, Et) or, more rapidly, in solution (R = Me, Et, Ph).
