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

using model chemistry: B97D3/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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-409.846220
Energy at 298.15K-409.855711
HF Energy-409.846220
Nuclear repulsion energy173.982430
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 B97D3/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 3049 3002 41.39      
2 A1 2976 2930 5.10      
3 A1 2127 2095 170.68      
4 A1 1447 1425 7.60      
5 A1 1266 1247 4.28      
6 A1 860 847 51.68      
7 A1 595 586 2.20      
8 A1 234 231 1.81      
9 A2 3053 3006 0.00      
10 A2 1426 1404 0.00      
11 A2 680 670 0.00      
12 A2 137 135 0.00      
13 E 3054 3007 25.71      
13 E 3054 3007 25.73      
14 E 3047 3000 2.12      
14 E 3047 3000 2.12      
15 E 2975 2929 13.68      
15 E 2975 2929 13.68      
16 E 1439 1417 2.09      
16 E 1439 1417 2.09      
17 E 1430 1408 0.08      
17 E 1430 1408 0.08      
18 E 1255 1236 23.08      
18 E 1255 1236 23.09      
19 E 896 882 152.27      
19 E 896 882 152.32      
20 E 839 826 12.24      
20 E 839 826 12.24      
21 E 684 673 17.42      
21 E 684 673 17.40      
22 E 612 602 11.01      
22 E 612 602 11.00      
23 E 200 197 0.92      
23 E 200 197 0.92      
24 E 152 150 0.00      
24 E 152 150 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25507.0 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 25116.7 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 B97D3/aug-cc-pVTZ
ABC
0.17467 0.17467 0.10322

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.383
H2 0.000 0.000 1.882
C3 0.000 1.792 -0.225
C4 1.552 -0.896 -0.225
C5 -1.552 -0.896 -0.225
H6 0.000 1.829 -1.321
H7 1.584 -0.914 -1.321
H8 -1.584 -0.914 -1.321
H9 -0.885 2.331 0.129
H10 0.885 2.331 0.129
H11 2.461 -0.399 0.129
H12 1.576 -1.932 0.129
H13 -1.576 -1.932 0.129
H14 -2.461 -0.399 0.129

Atom - Atom Distances (Å)
  Si1 H2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14
Si11.49931.89241.89241.89242.49972.49972.49972.50642.50642.50642.50642.50642.5064
H21.49932.76652.76652.76653.68863.68863.68863.04843.04843.04843.04843.04843.0484
C31.89242.76653.10383.10381.09613.32173.32171.09541.09543.31394.05944.05943.3139
C41.89242.76653.10383.10383.32171.09613.32174.05943.31391.09541.09543.31394.0594
C51.89242.76653.10383.10383.32173.32171.09613.31394.05944.05943.31391.09541.0954
H62.49973.68861.09613.32173.32173.16783.16781.77121.77123.62234.32804.32803.6223
H72.49973.68863.32171.09613.32173.16783.16784.32803.62231.77121.77123.62234.3280
H82.49973.68863.32173.32171.09613.16783.16783.62234.32804.32803.62231.77121.7712
H92.50643.04841.09544.05943.31391.77124.32803.62231.77104.31874.92274.31873.1517
H102.50643.04841.09543.31394.05941.77123.62234.32801.77103.15174.31874.92274.3187
H112.50643.04843.31391.09544.05943.62231.77124.32804.31873.15171.77104.31874.9227
H122.50643.04844.05941.09543.31394.32801.77123.62234.92274.31871.77103.15174.3187
H132.50643.04844.05943.31391.09544.32803.62231.77124.31874.92274.31873.15171.7710
H142.50643.04843.31394.05941.09543.62234.32801.77123.15174.31874.92274.31871.7710

picture of trimethylsilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C3 H6 110.685 Si1 C3 H9 111.223
Si1 C3 H10 111.223 Si1 C4 H7 110.685
Si1 C4 H11 111.223 Si1 C4 H12 111.223
Si1 C5 H8 110.685 Si1 C5 H13 111.223
Si1 C5 H14 111.223 H2 Si1 C3 108.752
H2 Si1 C4 108.752 H2 Si1 C5 108.752
C3 Si1 C4 110.180 C3 Si1 C5 110.180
C4 Si1 C5 110.180 H6 C3 H9 107.840
H6 C3 H10 107.840 H7 C4 H11 107.840
H7 C4 H12 107.840 H8 C5 H13 107.840
H8 C5 H14 107.840 H9 C3 H10 107.881
H11 C4 H12 107.881 H13 C5 H14 107.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.969      
2 H -0.179      
3 C -0.632      
4 C -0.632      
5 C -0.632      
6 H 0.137      
7 H 0.137      
8 H 0.137      
9 H 0.116      
10 H 0.116      
11 H 0.116      
12 H 0.116      
13 H 0.116      
14 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.553 0.553
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.860 0.000 0.000
y 0.000 -35.860 0.000
z 0.000 0.000 -36.869
Traceless
 xyz
x 0.505 0.000 0.000
y 0.000 0.505 0.000
z 0.000 0.000 -1.009
Polar
3z2-r2-2.019
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.784 0.000 0.000
y 0.000 10.783 0.000
z 0.000 0.000 9.405


<r2> (average value of r2) Å2
<r2> 139.591
(<r2>)1/2 11.815