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: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-2355.684774
Energy at 298.15K-2355.691817
Nuclear repulsion energy289.856634
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 B3PW91/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 3131 3011 29.11      
2 A1 3039 2923 16.69      
3 A1 1473 1417 8.30      
4 A1 1292 1243 3.71      
5 A1 904 869 31.53      
6 A1 571 549 2.61      
7 A1 233 224 0.86      
8 A2 3136 3015 0.00      
9 A2 1449 1394 0.00      
10 A2 761 732 0.00      
11 A2 150 144 0.00      
12 E 3136 3016 11.76      
12 E 3136 3016 11.76      
13 E 3132 3012 2.65      
13 E 3132 3012 2.64      
14 E 3042 2925 17.33      
14 E 3042 2925 17.32      
15 E 1464 1408 8.69      
15 E 1464 1408 8.69      
16 E 1455 1399 3.68      
16 E 1455 1399 3.68      
17 E 1269 1220 0.86      
17 E 1269 1220 0.86      
18 E 904 869 15.95      
18 E 904 869 15.95      
19 E 793 762 0.56      
19 E 793 762 0.56      
20 E 587 564 17.29      
20 E 587 564 17.29      
21 E 212 203 0.19      
21 E 212 203 0.19      
22 E 171 164 0.00      
22 E 171 164 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24230.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 23300.4 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 B3PW91/cc-pVTZ
ABC
0.15681 0.15681 0.11296

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.467
C2 0.000 1.713 -0.513
C3 1.483 -0.856 -0.513
C4 -1.483 -0.856 -0.513
H5 0.000 1.557 -1.592
H6 1.349 -0.779 -1.592
H7 -1.349 -0.779 -1.592
H8 -0.884 2.286 -0.231
H9 2.421 -0.378 -0.231
H10 -1.538 -1.908 -0.231
H11 0.884 2.286 -0.231
H12 1.538 -1.908 -0.231
H13 -2.421 -0.378 -0.231

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.97291.97291.97292.58162.58162.58162.54792.54792.54792.54792.54792.5479
C21.97292.96642.96641.09073.03183.03181.09013.21103.94371.09013.94373.2110
C31.97292.96642.96643.03181.09073.03183.94371.09013.21103.21101.09013.9437
C41.97292.96642.96643.03183.03181.09073.21103.94371.09013.94373.21101.0901
H52.58161.09073.03183.03182.69772.69771.77863.38514.02821.77864.02823.3851
H62.58163.03181.09073.03182.69772.69774.02821.77863.38513.38511.77864.0282
H72.58163.03183.03181.09072.69772.69773.38514.02821.77864.02823.38511.7786
H82.54791.09013.94373.21101.77864.02823.38514.24434.24431.76734.84243.0751
H92.54793.21101.09013.94373.38511.77864.02824.24434.24433.07511.76734.8424
H102.54793.94373.21101.09014.02823.38511.77864.24434.24434.84243.07511.7673
H112.54791.09013.21103.94371.77863.38514.02821.76733.07514.84244.24434.2443
H122.54793.94371.09013.21104.02821.77863.38514.84241.76733.07514.24434.2443
H132.54793.21103.94371.09013.38514.02821.77863.07514.84241.76734.24434.2443

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 111.583 As1 C2 H8 109.152
As1 C2 H11 109.152 As1 C3 H6 111.583
As1 C3 H9 109.152 As1 C3 H12 109.152
As1 C4 H7 111.583 As1 C4 H10 109.152
As1 C4 H13 109.152 C2 As1 C3 97.493
C2 As1 C4 97.493 C3 As1 C4 97.493
H5 C2 H8 109.291 H5 C2 H11 109.291
H6 C3 H9 109.291 H6 C3 H12 109.291
H7 C4 H10 109.291 H7 C4 H13 109.291
H8 C2 H11 108.312 H9 C3 H12 108.312
H10 C4 H13 108.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.267      
2 C -0.379      
3 C -0.379      
4 C -0.379      
5 H 0.092      
6 H 0.092      
7 H 0.092      
8 H 0.099      
9 H 0.099      
10 H 0.099      
11 H 0.099      
12 H 0.099      
13 H 0.099      


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 -38.421 0.000 0.000
y 0.000 -38.421 0.000
z 0.000 0.000 -41.838
Traceless
 xyz
x 1.709 0.000 0.000
y 0.000 1.709 0.000
z 0.000 0.000 -3.417
Polar
3z2-r2-6.834
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 10.791 0.000 0.000
y 0.000 10.790 0.001
z 0.000 0.001 9.222


<r2> (average value of r2) Å2
<r2> 140.654
(<r2>)1/2 11.860