Eight‐ and Twelve‐membered Cyclosilazoxanes: Structural Investigation of Two N‐Pentafluorophenyl‐substituted Si4N3O and Si6N2O4 Rings

The molecular structures of two N-pentafluorophenylcyclosilazoxanes have been investigated. X-Ray crystal structure determinations of (C6F5)(3)Me8Si4N3O (2) and (C6F5)(2)Me12Si6N2O4 (3) revealed the first structurally authenticated examples of eight-membered Si4N3O and twelve-membered Si6N2O4 ring systems.