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All results from a given calculation for As(CH3)3 (trimethyl arsine)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-2355.082771
Energy at 298.15K-2355.089614
Nuclear repulsion energy287.403773
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 PBEPBE/6-311G*
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 3061 3029 38.81      
2 A1 2970 2939 22.17      
3 A1 1455 1440 11.74      
4 A1 1273 1260 4.18      
5 A1 887 878 35.90      
6 A1 545 540 1.98      
7 A1 226 223 0.68      
8 A2 3066 3034 0.00      
9 A2 1423 1408 0.00      
10 A2 748 740 0.00      
11 A2 137 136 0.00      
12 E 3067 3035 17.63      
12 E 3067 3035 17.63      
13 E 3061 3029 5.05      
13 E 3061 3029 5.05      
14 E 2971 2940 21.24      
14 E 2971 2940 21.23      
15 E 1440 1425 12.97      
15 E 1440 1425 12.97      
16 E 1434 1419 4.27      
16 E 1434 1419 4.27      
17 E 1246 1233 1.71      
17 E 1246 1233 1.71      
18 E 885 875 15.93      
18 E 885 875 15.93      
19 E 777 769 1.25      
19 E 777 769 1.25      
20 E 560 554 14.88      
20 E 560 554 14.89      
21 E 203 201 0.18      
21 E 203 201 0.18      
22 E 163 162 0.00      
22 E 163 162 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23699.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 23452.9 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 PBEPBE/6-311G*
ABC
0.15358 0.15358 0.11217

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.480
C2 0.000 1.718 -0.527
C3 1.487 -0.859 -0.527
C4 -1.487 -0.859 -0.527
H5 0.000 1.550 -1.615
H6 1.343 -0.775 -1.615
H7 -1.343 -0.775 -1.615
H8 -0.890 2.302 -0.253
H9 2.438 -0.380 -0.253
H10 -1.548 -1.922 -0.253
H11 0.890 2.302 -0.253
H12 1.548 -1.922 -0.253
H13 -2.438 -0.380 -0.253

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.99121.99121.99122.60622.60622.60622.57422.57422.57422.57422.57422.5742
C21.99122.97492.97491.10033.03303.03301.09953.22803.96441.09953.96443.2280
C31.99122.97492.97493.03301.10033.03303.96441.09953.22803.22801.09953.9644
C41.99122.97492.97493.03303.03301.10033.22803.96441.09953.96443.22801.0995
H52.60621.10033.03303.03302.68532.68531.79223.39504.03831.79224.03833.3950
H62.60623.03301.10033.03302.68532.68544.03831.79223.39503.39501.79224.0383
H72.60623.03303.03301.10032.68532.68543.39504.03831.79224.03833.39501.7922
H82.57421.09953.96443.22801.79224.03833.39504.27424.27421.78054.87663.0962
H92.57423.22801.09953.96443.39501.79224.03834.27424.27423.09621.78054.8766
H102.57423.96443.22801.09954.03833.39501.79224.27424.27424.87663.09621.7805
H112.57421.09953.22803.96441.79223.39504.03831.78053.09624.87664.27424.2742
H122.57423.96441.09953.22804.03831.79223.39504.87661.78053.09624.27424.2742
H132.57423.22803.96441.09953.39504.03831.79223.09624.87661.78054.27424.2742

picture of trimethyl arsine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
As1 C2 H5 111.654 As1 C2 H8 109.377
As1 C2 H11 109.377 As1 C3 H6 111.654
As1 C3 H9 109.377 As1 C3 H12 109.377
As1 C4 H7 111.654 As1 C4 H10 109.377
As1 C4 H13 109.377 C2 As1 C3 96.664
C2 As1 C4 96.664 C3 As1 C4 96.664
H5 C2 H8 109.120 H5 C2 H11 109.120
H6 C3 H9 109.120 H6 C3 H12 109.120
H7 C4 H10 109.120 H7 C4 H13 109.120
H8 C2 H11 108.123 H9 C3 H12 108.123
H10 C4 H13 108.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.501      
2 C -0.853      
3 C -0.853      
4 C -0.853      
5 H 0.223      
6 H 0.223      
7 H 0.223      
8 H 0.232      
9 H 0.232      
10 H 0.232      
11 H 0.232      
12 H 0.232      
13 H 0.232      


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 -0.956 0.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.997 0.000 0.000
y 0.000 -38.997 0.000
z 0.000 0.000 -42.269
Traceless
 xyz
x 1.636 0.000 0.000
y 0.000 1.636 0.000
z 0.000 0.000 -3.272
Polar
3z2-r2-6.545
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 10.420 0.000 0.000
y 0.000 10.419 0.001
z 0.000 0.001 8.880


<r2> (average value of r2) Å2
<r2> 142.704
(<r2>)1/2 11.946