“…Recent crystal structures of t Bu 3 SiONa and t Bu 2 PhSiONaprepared via N 2 O treatment of the respective sodium silicidesreveal these species to be tetramers, with Na and O atoms occupying alternate corners of a cube . A related structure of t Bu 2 MeSiONa has also been determined 1 | 1 H NMR (δ ( J , Hz), assignt) | 13 C{ 1 H} NMR (δ, assignt) |
compound | t Bu | R/R‘/other | SiCMe 3 , SiC( C H 3 ) 3 | R/R‘/other |
t Bu 2 MeSiH b | 0.99 | −0.01 (d, 4), Me | | |
t Bu 2 PhSiH c | 1.02 | 3.63 (q, 4), SiH | | |
i Pr 2 t BuSiH d | 1.02 | 1.11 (d, 7.5), Me | | |
| | 1.13 (d, 7.5), Me | | |
| | 3.54, SiH | | |
t Bu 2 MeSiOH e | 0.97 | −0.03, Me | | |
t Bu 2 PhSiOH | 1.02 | 7.21 (dd, 2, 5), p -Ph | 21.14, 30.09 | 128.31, Ph |
| | 7.44 (dd, 2, 8.5), m -Ph | | 133.94, Ph |
| | 7.64 (m, 2), o -Ph | | 144.28, Ph |
i Pr 2 t BuSiOH d | 0.99 | 1.07 (d, 5.6) | | |
i Pr 3 SiOH d | | 1.03 (d, 7.5), Me | | 12.15, CH |
| | 3.59 (q, 2), OH | | 18.28, Me |
t Bu 2 HSiONa | 1.03 | 4.37 (SiH) | | |
t Bu 2 MeSiONa | 1.02 | −0.06, Me | | |
t Bu 2 PhSiONa | 1.11 | 7.11 (m, 4.8), m -Ph | | |
| | 7.71 (dd, 1.6), o , p- Ph | | |
i Pr 2 t BuSiONa | 1.06 | 1.14 (d, 7), Me | | |
| | 1.15 (d, 7), Me | | |
i Pr 3 SiONa | | 1.08 (d, 7), Me | | |
| | 0.91 (sep, 7), CH | | |
( t Bu 2 HSiO) 3 TaCl 2 ( 1 -H) | | | | |
( t Bu 2 MeSiO) 3 TaCl 2 ( 1 -Me) | 1.15 | 0.31, Me | 21.54, 27.86 | −7.07, Me |
( t Bu 2 PhSiO) 3 TaCl 2 ( 1 -Ph) | 1.31 | 7.19 (m, 2, 8), m -Ph | |
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