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: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-2355.579283
Energy at 298.15K-2355.586331
Nuclear repulsion energy289.383485
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 B3PW91/6-311G*
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 3132 3015 39.16      
2 A1 3040 2927 21.01      
3 A1 1498 1442 11.90      
4 A1 1321 1272 4.29      
5 A1 919 885 41.00      
6 A1 568 546 2.09      
7 A1 235 226 0.74      
8 A2 3135 3018 0.00      
9 A2 1469 1414 0.00      
10 A2 773 744 0.00      
11 A2 149 143 0.00      
12 E 3136 3019 17.73      
12 E 3136 3019 17.73      
13 E 3132 3015 4.52      
13 E 3132 3015 4.52      
14 E 3042 2928 23.12      
14 E 3042 2928 23.13      
15 E 1485 1429 13.43      
15 E 1485 1429 13.42      
16 E 1477 1422 4.26      
16 E 1477 1422 4.26      
17 E 1294 1246 2.37      
17 E 1294 1246 2.37      
18 E 916 881 17.66      
18 E 916 881 17.66      
19 E 805 775 1.18      
19 E 805 775 1.18      
20 E 583 561 15.32      
20 E 583 561 15.32      
21 E 212 205 0.21      
21 E 212 205 0.21      
22 E 173 166 0.00      
22 E 173 166 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24372.8 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 23463.7 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 B3PW91/6-311G*
ABC
0.15606 0.15606 0.11306

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.471
C2 0.000 1.711 -0.517
C3 1.482 -0.855 -0.517
C4 -1.482 -0.855 -0.517
H5 0.000 1.555 -1.599
H6 1.347 -0.777 -1.599
H7 -1.347 -0.777 -1.599
H8 -0.884 2.290 -0.241
H9 2.425 -0.380 -0.241
H10 -1.541 -1.910 -0.241
H11 0.884 2.290 -0.241
H12 1.541 -1.910 -0.241
H13 -2.425 -0.380 -0.241

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.97591.97591.97592.58932.58932.58932.55592.55592.55592.55592.55592.5559
C21.97592.96312.96311.09283.02893.02891.09233.21353.94521.09233.94523.2135
C31.97592.96312.96313.02891.09283.02893.94521.09233.21353.21351.09233.9452
C41.97592.96312.96313.02893.02891.09283.21353.94521.09233.94523.21351.0923
H52.58931.09283.02893.02892.69312.69311.77923.38634.02841.77924.02843.3863
H62.58933.02891.09283.02892.69312.69314.02841.77923.38633.38631.77924.0284
H72.58933.02893.02891.09282.69312.69313.38634.02841.77924.02843.38631.7792
H82.55591.09233.94523.21351.77924.02843.38634.25154.25151.76774.85023.0825
H92.55593.21351.09233.94523.38631.77924.02844.25154.25153.08251.76774.8502
H102.55593.94523.21351.09234.02843.38631.77924.25154.25154.85023.08251.7677
H112.55591.09233.21353.94521.77923.38634.02841.76773.08254.85024.25154.2515
H122.55593.94521.09233.21354.02841.77923.38634.85021.76773.08254.25154.2515
H132.55593.21353.94521.09233.38634.02841.77923.08254.85021.76774.25154.2515

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 111.826 As1 C2 H8 109.422
As1 C2 H11 109.422 As1 C3 H6 111.826
As1 C3 H9 109.422 As1 C3 H12 109.422
As1 C4 H7 111.826 As1 C4 H10 109.422
As1 C4 H13 109.422 C2 As1 C3 97.146
C2 As1 C4 97.146 C3 As1 C4 97.146
H5 C2 H8 109.028 H5 C2 H11 109.028
H6 C3 H9 109.028 H6 C3 H12 109.028
H7 C4 H10 109.028 H7 C4 H13 109.028
H8 C2 H11 108.036 H9 C3 H12 108.036
H10 C4 H13 108.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.521      
2 C -0.881      
3 C -0.881      
4 C -0.881      
5 H 0.230      
6 H 0.230      
7 H 0.230      
8 H 0.239      
9 H 0.239      
10 H 0.239      
11 H 0.239      
12 H 0.239      
13 H 0.239      


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 -1.031 1.031
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.592 0.000 0.000
y 0.000 -38.592 0.000
z 0.000 0.000 -42.011
Traceless
 xyz
x 1.710 0.000 0.000
y 0.000 1.710 0.000
z 0.000 0.000 -3.419
Polar
3z2-r2-6.838
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 10.068 0.000 0.000
y 0.000 10.068 0.001
z 0.000 0.001 8.573


<r2> (average value of r2) Å2
<r2> 141.071
(<r2>)1/2 11.877