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All results from a given calculation for SiH(CH3)3 (trimethylsilane)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-409.950534
Energy at 298.15K-409.960133
HF Energy-409.950534
Nuclear repulsion energy174.489617
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3091 2990 34.32      
2 A1 3026 2928 3.98      
3 A1 2172 2102 166.07      
4 A1 1475 1427 8.81      
5 A1 1298 1256 4.77      
6 A1 877 848 56.13      
7 A1 610 590 2.18      
8 A1 240 232 2.00      
9 A2 3095 2995 0.00      
10 A2 1455 1408 0.00      
11 A2 692 669 0.00      
12 A2 139 134 0.00      
13 E 3096 2995 20.59      
13 E 3096 2995 20.61      
14 E 3089 2988 1.61      
14 E 3089 2988 1.61      
15 E 3025 2927 9.41      
15 E 3025 2927 9.41      
16 E 1468 1420 2.63      
16 E 1468 1420 2.63      
17 E 1459 1411 0.09      
17 E 1459 1411 0.09      
18 E 1289 1247 29.07      
18 E 1289 1247 29.07      
19 E 918 888 159.05      
19 E 918 888 159.05      
20 E 856 828 15.37      
20 E 856 828 15.38      
21 E 703 680 16.20      
21 E 703 680 16.19      
22 E 625 604 10.91      
22 E 625 604 10.93      
23 E 204 197 0.98      
23 E 204 197 0.98      
24 E 153 148 0.00      
24 E 153 148 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25967.2 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 25123.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/aug-cc-pVTZ
ABC
0.17568 0.17568 0.10345

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.327
H2 0.000 0.000 1.839
C3 0.000 1.547 -0.200
C4 1.340 -0.773 -0.200
C5 -1.340 -0.773 -0.200
H6 0.000 1.561 -1.241
H7 1.352 -0.781 -1.241
H8 -1.352 -0.781 -1.241
H9 -0.853 2.046 0.150
H10 0.853 2.046 0.150
H11 2.198 -0.284 0.150
H12 1.345 -1.762 0.150
H13 -1.345 -1.762 0.150
H14 -2.198 -0.284 0.150

Atom - Atom Distances (Å)
  Si1 H2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14
Si11.51211.63381.63381.63382.21262.21262.21262.22362.22362.22362.22362.22362.2236
H21.51212.55882.55882.55883.45303.45303.45302.78652.78652.78652.78652.78652.7865
C31.63382.55882.67902.67901.04162.88612.88611.04841.04842.88223.58853.58852.8822
C41.63382.55882.67902.67902.88611.04162.88613.58852.88221.04841.04842.88223.5885
C51.63382.55882.67902.67902.88612.88611.04162.88223.58853.58852.88221.04841.0484
H62.21263.45301.04162.88612.88612.70422.70421.70241.70243.18963.84543.84543.1896
H72.21263.45302.88611.04162.88612.70422.70423.84543.18961.70241.70243.18963.8454
H82.21263.45302.88612.88611.04162.70422.70423.18963.84543.84543.18961.70241.7024
H92.22362.78651.04843.58852.88221.70243.84543.18961.70603.83924.39653.83922.6905
H102.22362.78651.04842.88223.58851.70243.18963.84541.70602.69053.83924.39653.8392
H112.22362.78652.88221.04843.58853.18961.70243.84543.83922.69051.70603.83924.3965
H122.22362.78653.58851.04842.88223.84541.70243.18964.39653.83921.70602.69053.8392
H132.22362.78653.58852.88221.04843.84543.18961.70243.83924.39653.83922.69051.7060
H142.22362.78652.88223.58851.04843.18963.84541.70242.69053.83924.39653.83921.7060

picture of trimethylsilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C3 H6 109.591 Si1 C3 H9 110.073
Si1 C3 H10 110.073 Si1 C4 H7 109.591
Si1 C4 H11 110.073 Si1 C4 H12 110.073
Si1 C5 H8 109.591 Si1 C5 H13 110.073
Si1 C5 H14 110.073 H2 Si1 C3 108.791
H2 Si1 C4 108.791 H2 Si1 C5 108.791
C3 Si1 C4 110.143 C3 Si1 C5 110.143
C4 Si1 C5 110.143 H6 C3 H9 109.085
H6 C3 H10 109.085 H7 C4 H11 109.085
H7 C4 H12 109.085 H8 C5 H13 109.085
H8 C5 H14 109.085 H9 C3 H10 108.910
H11 C4 H12 108.910 H13 C5 H14 108.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability