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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-2355.755887
Energy at 298.15K-2355.762877
HF Energy-2355.755887
Nuclear repulsion energy288.434533
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/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 3113 3012 32.30      
2 A1 3031 2932 20.00      
3 A1 1480 1432 8.28      
4 A1 1297 1255 3.42      
5 A1 904 875 25.29      
6 A1 556 538 2.73      
7 A1 231 223 1.16      
8 A2 3118 3016 0.00      
9 A2 1458 1411 0.00      
10 A2 764 740 0.00      
11 A2 148 144 0.00      
12 E 3118 3017 14.35      
12 E 3118 3017 14.35      
13 E 3113 3012 3.08      
13 E 3113 3012 3.08      
14 E 3032 2934 19.70      
14 E 3032 2934 19.70      
15 E 1471 1423 8.59      
15 E 1471 1423 8.59      
16 E 1463 1416 3.07      
16 E 1463 1416 3.07      
17 E 1275 1233 0.46      
17 E 1275 1233 0.46      
18 E 904 874 13.38      
18 E 904 874 13.38      
19 E 797 771 0.25      
19 E 797 771 0.25      
20 E 571 553 16.42      
20 E 571 553 16.42      
21 E 209 203 0.23      
21 E 209 203 0.23      
22 E 164 158 0.02      
22 E 164 158 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24166.0 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 23380.6 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/aug-cc-pVTZ
ABC
0.15498 0.15498 0.11196

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.468
C2 0.000 1.726 -0.514
C3 1.495 -0.863 -0.514
C4 -1.495 -0.863 -0.514
H5 0.000 1.574 -1.594
H6 1.363 -0.787 -1.594
H7 -1.363 -0.787 -1.594
H8 -0.882 2.301 -0.234
H9 2.433 -0.387 -0.234
H10 -1.552 -1.914 -0.234
H11 0.882 2.301 -0.234
H12 1.552 -1.914 -0.234
H13 -2.433 -0.387 -0.234

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.98591.98591.98592.59362.59362.59362.56192.56192.56192.56192.56192.5619
C21.98592.98972.98971.09013.05603.05601.08923.23493.96691.08923.96693.2349
C31.98592.98972.98973.05601.09013.05603.96691.08923.23493.23491.08923.9669
C41.98592.98972.98973.05603.05601.09013.23493.96691.08923.96693.23491.0892
H52.59361.09013.05603.05602.72632.72631.77613.40814.05251.77614.05253.4081
H62.59363.05601.09013.05602.72632.72634.05251.77613.40813.40811.77614.0525
H72.59363.05603.05601.09012.72632.72633.40814.05251.77614.05253.40811.7761
H82.56191.08923.96693.23491.77614.05253.40814.26764.26761.76344.86673.1033
H92.56193.23491.08923.96693.40811.77614.05254.26764.26763.10331.76344.8668
H102.56193.96693.23491.08924.05253.40811.77614.26764.26764.86673.10331.7634
H112.56191.08923.23493.96691.77613.40814.05251.76343.10334.86674.26764.2676
H122.56193.96691.08923.23494.05251.77613.40814.86671.76343.10334.26764.2676
H132.56193.23493.96691.08923.40814.05251.77613.10334.86681.76344.26764.2676

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 111.617 As1 C2 H8 109.348
As1 C2 H11 109.348 As1 C3 H6 111.617
As1 C3 H9 109.348 As1 C3 H12 109.348
As1 C4 H7 111.617 As1 C4 H10 109.348
As1 C4 H13 109.348 C2 As1 C3 97.656
C2 As1 C4 97.656 C3 As1 C4 97.656
H5 C2 H8 109.179 H5 C2 H11 109.179
H6 C3 H9 109.179 H6 C3 H12 109.179
H7 C4 H10 109.179 H7 C4 H13 109.179
H8 C2 H11 108.101 H9 C3 H12 108.101
H10 C4 H13 108.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.753      
2 C -0.767      
3 C -0.767      
4 C -0.767      
5 H 0.187      
6 H 0.187      
7 H 0.187      
8 H 0.165      
9 H 0.165      
10 H 0.165      
11 H 0.165      
12 H 0.165      
13 H 0.165      


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 -0.928 0.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.214 0.000 0.000
y 0.000 -39.214 0.000
z 0.000 0.000 -42.479
Traceless
 xyz
x 1.633 0.000 0.000
y 0.000 1.633 0.000
z 0.000 0.000 -3.265
Polar
3z2-r2-6.530
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 11.657 0.000 0.000
y 0.000 11.657 -0.000
z 0.000 -0.000 10.230


<r2> (average value of r2) Å2
<r2> 142.223
(<r2>)1/2 11.926