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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-2355.064582
Energy at 298.15K-2355.071344
Nuclear repulsion energy286.820349
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3072 3055 24.77      
2 A1 2968 2950 14.88      
3 A1 1402 1393 7.19      
4 A1 1224 1217 2.15      
5 A1 861 856 29.97      
6 A1 546 543 2.01      
7 A1 224 223 0.51      
8 A2 3078 3060 0.00      
9 A2 1374 1366 0.00      
10 A2 723 719 0.00      
11 A2 133 132 0.00      
12 E 3078 3060 9.91      
12 E 3078 3060 9.91      
13 E 3073 3056 2.62      
13 E 3073 3056 2.61      
14 E 2970 2953 17.35      
14 E 2970 2953 17.35      
15 E 1390 1382 7.88      
15 E 1390 1382 7.88      
16 E 1382 1374 4.08      
16 E 1382 1374 4.08      
17 E 1197 1190 0.00      
17 E 1197 1190 0.00      
18 E 859 854 15.29      
18 E 859 854 15.29      
19 E 754 749 1.21      
19 E 754 749 1.20      
20 E 560 557 16.89      
20 E 560 557 16.89      
21 E 201 200 0.15      
21 E 201 200 0.15      
22 E 159 158 0.00      
22 E 159 158 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23425.5 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 23289.6 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 PBEPBE/cc-pVDZ
ABC
0.15326 0.15326 0.11159

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.478
C2 0.000 1.722 -0.525
C3 1.491 -0.861 -0.525
C4 -1.491 -0.861 -0.525
H5 0.000 1.557 -1.622
H6 1.348 -0.778 -1.622
H7 -1.348 -0.778 -1.622
H8 -0.898 2.306 -0.243
H9 2.446 -0.375 -0.243
H10 -1.548 -1.931 -0.243
H11 0.898 2.306 -0.243
H12 1.548 -1.931 -0.243
H13 -2.446 -0.375 -0.243

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.99271.99271.99272.61452.61452.61452.57812.57812.57812.57812.57812.5781
C21.99272.98182.98181.10903.04483.04481.10833.23463.97721.10833.97723.2346
C31.99272.98182.98183.04481.10903.04483.97721.10833.23463.23461.10833.9772
C41.99272.98182.98183.04483.04481.10903.23463.97721.10833.97723.23461.1083
H52.61451.10903.04483.04482.69672.69671.80823.40894.05761.80824.05763.4089
H62.61453.04481.10903.04482.69672.69674.05761.80823.40893.40891.80824.0576
H72.61453.04483.04481.10902.69672.69673.40894.05761.80824.05763.40891.8082
H82.57811.10833.97723.23461.80824.05763.40894.28704.28701.79614.89293.0968
H92.57813.23461.10833.97723.40891.80824.05764.28704.28703.09681.79614.8929
H102.57813.97723.23461.10834.05763.40891.80824.28704.28704.89293.09681.7961
H112.57811.10833.23463.97721.80823.40894.05761.79613.09684.89294.28704.2870
H122.57813.97721.10833.23464.05761.80823.40894.89291.79613.09684.28704.2870
H132.57813.23463.97721.10833.40894.05761.80823.09684.89291.79614.28704.2870

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 111.704 As1 C2 H8 109.130
As1 C2 H11 109.130 As1 C3 H6 111.704
As1 C3 H9 109.130 As1 C3 H12 109.130
As1 C4 H7 111.704 As1 C4 H10 109.130
As1 C4 H13 109.130 C2 As1 C3 96.866
C2 As1 C4 96.866 C3 As1 C4 96.866
H5 C2 H8 109.276 H5 C2 H11 109.276
H6 C3 H9 109.276 H6 C3 H12 109.276
H7 C4 H10 109.276 H7 C4 H13 109.276
H8 C2 H11 108.257 H9 C3 H12 108.257
H10 C4 H13 108.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.205      
2 C -0.230      
3 C -0.230      
4 C -0.230      
5 H 0.050      
6 H 0.050      
7 H 0.050      
8 H 0.056      
9 H 0.056      
10 H 0.056      
11 H 0.056      
12 H 0.056      
13 H 0.056      


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 -0.881 0.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.483 0.000 0.000
y 0.000 -38.483 0.000
z 0.000 0.000 -41.502
Traceless
 xyz
x 1.509 0.000 0.000
y 0.000 1.509 0.000
z 0.000 0.000 -3.019
Polar
3z2-r2-6.038
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 10.216 0.000 0.000
y 0.000 10.215 0.001
z 0.000 0.001 8.310


<r2> (average value of r2) Å2
<r2> 142.805
(<r2>)1/2 11.950