Journal of Organometallic Chemistry p. 7 - 14 (1985)
Update date:2022-08-11
Topics:
Weidenbruch, Manfred
Herrndorf, Marlies
Schaefer, Annemarie
Peters, Karl
Schnering, Hans Georg von
The reaction of di-t-butyldiiodosilane with excess lithium naphthalenide followed by treatment with dichloro(2,4,6-tri-t-butylphenyl)phosphane (ArPCl2) leads to the diphosphene ArP=Ar, the air-stable compound 1,2-bis(2,4,6-tri-t-butylphenyl)-3,3-di-t-butyl-1,2,3-diphosphasilirane (3), and other products.The X-ray structure analysis reveals slightly elongated Si-P and P-P bond lengths of about 224.3 and 223.4 pm, respectively.The steric crowding of the three-membered heterocycle causes a puckering of the phenyl rings and a bending of the ortho-t-butyl groups out of the ring planes.
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