Tetrapropoxysilane(682-01-9) 1H NMR
Product NameTetrapropoxysilane
CAS682-01-9
Molecular FormulaC12H28O4Si
Molecular Weight264.43
InChIInChI=1S/C12H28O4Si/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h5-12H2,1-4H3
InChIKey ZQZCOBSUOFHDEE-UHFFFAOYSA-N
Smiles[Si](OCCC)(OCCC)(OCCC)OCCC
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MassMS-NW-8608 tetrapropyl orthosilicate C12H28O4Si (Mass of molecular ion: 264)
Source Temperature: 280 °C Sample Temperature: 140 °C Reservoir, 75 eV
27.0 3.6 28.0 1.0 29.0 2.9 31.0 2.7 39.0 1.3 41.0 7.7 42.0 1.5 43.0 10.3 45.0 4.1 55.0 2.2 57.0 1.0 62.0 3.8 63.0 16.2 64.0 1.0 76.0 1.8 77.0 3.3 79.0 54.6 80.0 2.9 81.0 2.7 83.0 5.9 87.0 1.3 89.0 2.5 91.0 1.5 92.0 1.1 93.0 11.5 97.0 3.4 101.0 1.5 103.0 6.1 105.0 6.7 107.0 2.4 109.0 2.1 111.0 1.3 117.0 4.3 118.0 1.0 119.0 4.7 121.0 24.4 122.0 2.1 123.0 4.9 133.0 3.8 135.0 10.6 136.0 1.0 137.0 8.1 139.0 1.6 145.0 1.8 147.0 5.1 149.0 1.7 151.0 51.2 152.0 4.9 153.0 2.4 163.0 12.2 164.0 1.5 165.0 3.9 175.0 1.0 177.0 30.8 178.0 4.0 179.0 4.6 181.0 1.1 191.0 1.1 193.0 30.4 194.0 4.0 195.0 1.5 205.0 23.1 206.0 3.5 207.0 1.4 221.0 4.8 222.0 1.0 223.0 1.2 235.0 100.0 236.0 16.4 237.0 5.3 263.0 1.9 264.0 1.6
400 MHz in CDCl3
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1H NMR 399.65 MHz C12 H28 O4 Si 0.05 ml : 0.5 ml CDCl3 tetrapropyl orthosilicate 
Assign. Shift(ppm)
A 3.738 B 1.601 C 0.922
Hz ppm Int.1500.49 3.755 415 1497.56 3.748 43 1493.77 3.738 769 1487.18 3.722 461 658.81 1.649 55 651.37 1.630 198 644.65 1.614 345 643.92 1.612 276 637.21 1.595 401 632.81 1.584 37 630.49 1.578 212 630.00 1.577 189 623.17 1.560 70 380.86 0.953 37 376.22 0.942 592 368.65 0.923 1000 364.50 0.913 62 361.33 0.905 600 357.06 0.894 50
in CDCl3
liquid film
