return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-125.849700
Energy at 298.15K-125.856620
Nuclear repulsion energy101.446387
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/LANL2DZ
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 3152 3029 59.52      
2 A1 3042 2924 22.53      
3 A1 1508 1450 15.62      
4 A1 1355 1302 9.69      
5 A1 957 919 61.39      
6 A1 550 529 2.49      
7 A1 237 228 0.47      
8 A2 3150 3028 0.00      
9 A2 1483 1425 0.00      
10 A2 803 772 0.00      
11 A2 99 95 0.00      
12 E 3152 3030 27.93      
12 E 3152 3030 27.93      
13 E 3149 3027 8.52      
13 E 3149 3027 8.52      
14 E 3043 2925 36.07      
14 E 3043 2925 36.08      
15 E 1499 1441 16.92      
15 E 1499 1441 16.92      
16 E 1490 1432 7.27      
16 E 1490 1432 7.27      
17 E 1329 1277 12.92      
17 E 1329 1277 12.93      
18 E 945 908 24.46      
18 E 945 908 24.46      
19 E 834 801 2.35      
19 E 834 801 2.35      
20 E 574 552 14.44      
20 E 574 552 14.45      
21 E 212 203 0.14      
21 E 212 203 0.14      
22 E 154 148 0.03      
22 E 154 148 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 24548.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 23596.0 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/LANL2DZ
ABC
0.15203 0.15203 0.11036

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.480
C2 0.000 1.733 -0.526
C3 1.501 -0.867 -0.526
C4 -1.501 -0.867 -0.526
H5 0.000 1.564 -1.610
H6 1.355 -0.782 -1.610
H7 -1.355 -0.782 -1.610
H8 -0.889 2.315 -0.254
H9 2.449 -0.387 -0.254
H10 -1.560 -1.927 -0.254
H11 0.889 2.315 -0.254
H12 1.560 -1.927 -0.254
H13 -2.449 -0.387 -0.254

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As12.00422.00422.00422.61032.61032.61032.58592.58592.58592.58592.58592.5859
C22.00423.00243.00241.09693.05573.05571.09663.25123.98861.09663.98863.2512
C32.00423.00243.00243.05571.09693.05573.98861.09663.25123.25121.09663.9886
C42.00423.00243.00243.05573.05571.09693.25123.98861.09663.98863.25121.0966
H52.61031.09693.05573.05572.70932.70931.78683.41264.05751.78684.05753.4126
H62.61033.05571.09693.05572.70932.70934.05751.78683.41263.41261.78684.0575
H72.61033.05573.05571.09692.70932.70933.41264.05751.78684.05753.41261.7868
H82.58591.09663.98863.25121.78684.05753.41264.29484.29481.77804.89823.1202
H92.58593.25121.09663.98863.41261.78684.05754.29484.29483.12021.77804.8982
H102.58593.98863.25121.09664.05753.41261.78684.29484.29484.89823.12021.7780
H112.58591.09663.25123.98861.78683.41264.05751.77803.12024.89824.29484.2948
H122.58593.98861.09663.25124.05751.78683.41264.89821.77803.12024.29484.2948
H132.58593.25123.98861.09663.41264.05751.78683.12024.89821.77804.29484.2948

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 111.256 As1 C2 H8 109.502
As1 C2 H11 109.502 As1 C3 H6 111.256
As1 C3 H9 109.502 As1 C3 H12 109.502
As1 C4 H7 111.256 As1 C4 H10 109.502
As1 C4 H13 109.502 C2 As1 C3 97.010
C2 As1 C4 97.010 C3 As1 C4 97.010
H5 C2 H8 109.096 H5 C2 H11 109.096
H6 C3 H9 109.096 H6 C3 H12 109.096
H7 C4 H10 109.096 H7 C4 H13 109.096
H8 C2 H11 108.334 H9 C3 H12 108.334
H10 C4 H13 108.334
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.621      
2 C -0.884      
3 C -0.884      
4 C -0.884      
5 H 0.225      
6 H 0.225      
7 H 0.225      
8 H 0.226      
9 H 0.226      
10 H 0.226      
11 H 0.226      
12 H 0.226      
13 H 0.226      


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 -1.015 1.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.451 0.000 0.000
y 0.000 -34.451 0.000
z 0.000 0.000 -37.751
Traceless
 xyz
x 1.650 0.000 0.000
y 0.000 1.650 0.000
z 0.000 0.000 -3.300
Polar
3z2-r2-6.600
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 9.438 0.000 0.000
y 0.000 9.438 0.000
z 0.000 0.000 7.597


<r2> (average value of r2) Å2
<r2> 134.822
(<r2>)1/2 11.611