Functionalized Carbazolyl Hydro‐ and Allyl‐Silanes

Abstract

The synthesis and properties of silanes bearing a bulky carbazolyl substituent are described. Metathesis routes with different reagents under different conditions are required to obtain the compounds of the general formula RSi(X)2H and RSi(X)2All (X=Cl, N3, NCO, NCS, NH2, All=CH2CHCH2). The silanes were studied by XRD, NMR and IR spectroscopy and all findings were corroborated by DFT methods.

Silylenes with a Small Chalcogenide Substituent: Tuning Frontier Orbital Energies from O to Te

“…Crystalline material of the compound was eventually obtained and the product was identified by SC‐XRD experiments (Figure 6). It is noteworthy, that iminosilane 11 is stable, while silaimidoylbromide with Br instead of Ph was not obtained [54] . Structurally, the iminosilane 11 features a planarised Si atom (sum of angles 360°) and a short Si=N double bond of 1.553(2) Å, comparing well to other iminosilanes (1.549–1.573 Å) [55,56] …”

Silylene mit kleinen Chalcogenolato‐Substituenten: Variation der Grenzorbitalenergien von O bis Te

“…Es weist ein planarisiertes Siliziumatom (Winkelsumme von 360°) sowie eine Si1=N1‐Bindungslänge von 1.553(2) Å auf, die mit den Bindungslängen in literaturbekannten Iminosilanen übereinstimmt (1.549–1.573 Å) [54,55] . Es ist bemerkenswert, dass das Silaimin 11 stabil ist, während das entsprechende Silaimidoylbromid mit einem Bromatom anstelle einer Phenylgruppe bei Umgebungstemperatur nicht isolierbar ist [53] …”