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

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-2353.508069
Energy at 298.15K-2353.515302
Nuclear repulsion energy289.520280
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 B3LYPultrafine/6-31G*
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 3147 3015 35.52      
2 A1 3054 2926 17.32      
3 A1 1532 1468 4.80      
4 A1 1336 1280 1.89      
5 A1 917 879 38.44      
6 A1 554 531 1.76      
7 A1 258 247 0.41      
8 A2 3146 3014 0.00      
9 A2 1500 1437 0.00      
10 A2 780 747 0.00      
11 A2 176 168 0.00      
12 E 3147 3015 21.31      
12 E 3147 3015 21.31      
13 E 3146 3014 1.89      
13 E 3146 3014 1.89      
14 E 3055 2927 18.84      
14 E 3055 2927 18.84      
15 E 1515 1451 8.70      
15 E 1515 1451 8.70      
16 E 1507 1443 2.20      
16 E 1507 1443 2.20      
17 E 1310 1255 0.03      
17 E 1310 1255 0.03      
18 E 926 887 18.16      
18 E 926 887 18.16      
19 E 797 764 0.64      
19 E 797 764 0.64      
20 E 571 547 13.39      
20 E 571 547 13.39      
21 E 234 224 0.12      
21 E 234 224 0.12      
22 E 204 196 0.00      
22 E 204 196 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24611.0 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 23577.3 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 B3LYPultrafine/6-31G*
ABC
0.15605 0.15605 0.11361

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.474
C2 0.000 1.707 -0.522
C3 1.479 -0.854 -0.522
C4 -1.479 -0.854 -0.522
H5 0.000 1.538 -1.603
H6 1.332 -0.769 -1.603
H7 -1.332 -0.769 -1.603
H8 -0.885 2.284 -0.240
H9 2.421 -0.375 -0.240
H10 -1.535 -1.909 -0.240
H11 0.885 2.284 -0.240
H12 1.535 -1.909 -0.240
H13 -2.421 -0.375 -0.240

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.97641.97641.97642.58452.58452.58452.55152.55152.55152.55152.55152.5515
C21.97642.95722.95721.09433.01283.01281.09373.20583.93881.09373.93883.2058
C31.97642.95722.95723.01281.09433.01283.93881.09373.20583.20581.09373.9388
C41.97642.95722.95723.01283.01281.09433.20583.93881.09373.93883.20581.0937
H52.58451.09433.01283.01282.66452.66451.78853.37354.01241.78854.01243.3735
H62.58453.01281.09433.01282.66452.66454.01241.78853.37353.37351.78854.0124
H72.58453.01283.01281.09432.66452.66453.37354.01241.78854.01243.37351.7885
H82.55151.09373.93883.20581.78854.01243.37354.24304.24301.77094.84163.0706
H92.55153.20581.09373.93883.37351.78854.01244.24304.24303.07061.77094.8416
H102.55153.93883.20581.09374.01243.37351.78854.24304.24304.84163.07061.7709
H112.55151.09373.20583.93881.78853.37354.01241.77093.07064.84164.24304.2430
H122.55153.93881.09373.20584.01241.78853.37354.84161.77093.07064.24304.2430
H132.55153.20583.93881.09373.37354.01241.78853.07064.84161.77094.24304.2430

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 111.364 As1 C2 H8 108.999
As1 C2 H11 108.999 As1 C3 H6 111.364
As1 C3 H9 108.999 As1 C3 H12 108.999
As1 C4 H7 111.364 As1 C4 H10 108.999
As1 C4 H13 108.999 C2 As1 C3 96.857
C2 As1 C4 96.857 C3 As1 C4 96.857
H5 C2 H8 109.652 H5 C2 H11 109.652
H6 C3 H9 109.652 H6 C3 H12 109.652
H7 C4 H10 109.652 H7 C4 H13 109.652
H8 C2 H11 108.110 H9 C3 H12 108.110
H10 C4 H13 108.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.307      
2 C -0.577      
3 C -0.577      
4 C -0.577      
5 H 0.155      
6 H 0.155      
7 H 0.155      
8 H 0.160      
9 H 0.160      
10 H 0.160      
11 H 0.160      
12 H 0.160      
13 H 0.160      


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 -1.051 1.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.143 0.000 0.000
y 0.000 -38.143 0.000
z 0.000 0.000 -41.410
Traceless
 xyz
x 1.633 0.000 0.000
y 0.000 1.633 0.000
z 0.000 0.000 -3.267
Polar
3z2-r2-6.533
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 9.350 0.000 0.000
y 0.000 9.350 0.000
z 0.000 0.000 7.743


<r2> (average value of r2) Å2
<r2> 140.442
(<r2>)1/2 11.851