Xiong, YunYao, ShenglaiRuzicka, AlesDrieß, Matthias2021-11-222021-11-222021-05-180022-4936https://depositonce.tu-berlin.de/handle/11303/13937http://dx.doi.org/10.14279/depositonce-12711In stark contrast to the reactivity of the bis-silylenyl dicarborane CB–Si2 (1) [CB = ortho-C,C′-C2B10H10, Si = PhC(tBuN)2Si] towards O2, N2O, and CO2, yielding the same dioxygenation product CB–Si2O2 (2) with a four-membered 1,3,2,4-disiladioxetane ring, the activation of the latter small molecules with the phosphanyl-silylenyl-functionalised CB–SiP (3) {P[double bond, length as m-dash]P[N(tBu)CH2]2} affords with O2 the CB–Si([double bond, length as m-dash]O)P([double bond, length as m-dash]O) silanone-phosphine oxide (4), with N2O the CB–Si([double bond, length as m-dash]O)P silanone-phosphine (5), and with CO2 the CB–Si(O2C[double bond, length as m-dash]O)P silicon carbonate-phosphine (6) and CB–C([double bond, length as m-dash]O)OSiOP ester (7), respectively.en540 Chemie und zugeordnete Wissenschaftenbis-silylenyl dicarboranesmall moleculesArticle1364-548X