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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2353.998866
Energy at 298.15K-2354.006090
HF Energy-2353.129715
Nuclear repulsion energy294.312192
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 MP2=FULL/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 3175 3014 20.74      
2 A1 3085 2929 17.86      
3 A1 1498 1422 8.99      
4 A1 1307 1241 6.39      
5 A1 903 857 25.84      
6 A1 611 580 2.30      
7 A1 242 230 1.24      
8 A2 3183 3022 0.00      
9 A2 1469 1394 0.00      
10 A2 751 713 0.00      
11 A2 161 153 0.00      
12 E 3183 3022 7.12      
12 E 3183 3022 7.12      
13 E 3176 3015 2.57      
13 E 3176 3015 2.57      
14 E 3090 2933 11.97      
14 E 3090 2933 11.97      
15 E 1486 1411 8.62      
15 E 1486 1411 8.62      
16 E 1478 1403 3.98      
16 E 1478 1403 3.98      
17 E 1280 1215 1.88      
17 E 1280 1215 1.88      
18 E 906 860 13.94      
18 E 906 860 13.94      
19 E 794 754 0.25      
19 E 794 754 0.25      
20 E 628 596 17.17      
20 E 628 596 17.17      
21 E 228 217 0.25      
21 E 228 217 0.25      
22 E 179 170 0.04      
22 E 179 170 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 24619.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 23373.3 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 MP2=FULL/cc-pVTZ
ABC
0.16113 0.16113 0.11826

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.470
C2 0.000 1.668 -0.516
C3 1.444 -0.834 -0.516
C4 -1.444 -0.834 -0.516
H5 0.000 1.490 -1.586
H6 1.290 -0.745 -1.586
H7 -1.290 -0.745 -1.586
H8 -0.880 2.241 -0.244
H9 2.380 -0.359 -0.244
H10 -1.501 -1.882 -0.244
H11 0.880 2.241 -0.244
H12 1.501 -1.882 -0.244
H13 -2.380 -0.359 -0.244

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.93691.93691.93692.53912.53912.53912.51062.51062.51062.51062.51062.5106
C21.93692.88822.88821.08542.93762.93761.08443.13763.86331.08443.86333.1376
C31.93692.88822.88822.93761.08542.93763.86331.08443.13763.13761.08443.8633
C41.93692.88822.88822.93762.93761.08543.13763.86331.08443.86333.13761.0844
H52.53911.08542.93762.93762.58002.58001.77203.29903.92711.77203.92713.2990
H62.53912.93761.08542.93762.58002.58003.92711.77203.29903.29901.77203.9271
H72.53912.93762.93761.08542.58002.58003.29903.92711.77203.92713.29901.7720
H82.51061.08443.86333.13761.77203.92713.29904.16914.16911.75914.76043.0013
H92.51063.13761.08443.86333.29901.77203.92714.16914.16913.00131.75914.7604
H102.51063.86333.13761.08443.92713.29901.77204.16914.16914.76043.00131.7591
H112.51061.08443.13763.86331.77203.29903.92711.75913.00134.76044.16914.1691
H122.51063.86331.08443.13763.92711.77203.29904.76041.75913.00134.16914.1691
H132.51063.13763.86331.08443.29903.92711.77203.00134.76041.75914.16914.1691

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 111.149 As1 C2 H8 109.114
As1 C2 H11 109.114 As1 C3 H6 111.149
As1 C3 H9 109.114 As1 C3 H12 109.114
As1 C4 H7 111.149 As1 C4 H10 109.114
As1 C4 H13 109.114 C2 As1 C3 96.414
C2 As1 C4 96.414 C3 As1 C4 96.414
H5 C2 H8 109.506 H5 C2 H11 109.506
H6 C3 H9 109.506 H6 C3 H12 109.506
H7 C4 H10 109.506 H7 C4 H13 109.506
H8 C2 H11 108.405 H9 C3 H12 108.405
H10 C4 H13 108.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability