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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-2353.612313
Energy at 298.15K-2353.619437
Nuclear repulsion energy290.318312
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-pVDZ
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 3191 3033 24.21      
2 A1 3077 2924 15.20      
3 A1 1477 1404 8.06      
4 A1 1303 1239 3.50      
5 A1 910 865 28.21      
6 A1 596 567 1.92      
7 A1 235 223 0.83      
8 A2 3199 3040 0.00      
9 A2 1454 1382 0.00      
10 A2 762 724 0.00      
11 A2 149 142 0.00      
12 E 3198 3040 8.49      
12 E 3198 3040 8.49      
13 E 3192 3034 2.76      
13 E 3192 3034 2.76      
14 E 3080 2927 15.44      
14 E 3080 2927 15.44      
15 E 1469 1396 7.77      
15 E 1469 1396 7.77      
16 E 1459 1387 4.74      
16 E 1459 1387 4.74      
17 E 1278 1215 0.21      
17 E 1278 1215 0.21      
18 E 909 864 15.15      
18 E 909 864 15.15      
19 E 804 764 0.73      
19 E 804 764 0.73      
20 E 614 584 16.95      
20 E 614 584 16.95      
21 E 220 209 0.25      
21 E 220 209 0.25      
22 E 172 164 0.02      
22 E 172 164 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24569.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 23351.2 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-pVDZ
ABC
0.15700 0.15700 0.11484

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.476
C2 0.000 1.695 -0.520
C3 1.468 -0.848 -0.520
C4 -1.468 -0.848 -0.520
H5 0.000 1.519 -1.609
H6 1.315 -0.759 -1.609
H7 -1.315 -0.759 -1.609
H8 -0.892 2.283 -0.250
H9 2.423 -0.369 -0.250
H10 -1.531 -1.914 -0.250
H11 0.892 2.283 -0.250
H12 1.531 -1.914 -0.250
H13 -2.423 -0.369 -0.250

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.96641.96641.96642.57912.57912.57912.55622.55622.55622.55622.55622.5562
C21.96642.93662.93661.10272.99022.99021.10183.19473.93011.10183.93013.1947
C31.96642.93662.93662.99021.10272.99023.93011.10183.19473.19471.10183.9301
C41.96642.93662.93662.99022.99021.10273.19473.93011.10183.93013.19471.1018
H52.57911.10272.99022.99022.63062.63061.79623.35873.99681.79623.99683.3587
H62.57912.99021.10272.99022.63062.63063.99681.79623.35873.35871.79623.9968
H72.57912.99022.99021.10272.63062.63063.35873.99681.79623.99683.35871.7962
H82.55621.10183.93013.19471.79623.99683.35874.24534.24531.78424.84623.0620
H92.55623.19471.10183.93013.35871.79623.99684.24534.24533.06201.78424.8462
H102.55623.93013.19471.10183.99683.35871.79624.24534.24534.84623.06201.7842
H112.55621.10183.19473.93011.79623.35873.99681.78423.06204.84624.24534.2453
H122.55623.93011.10183.19473.99681.79623.35874.84621.78423.06204.24534.2453
H132.55623.19473.93011.10183.35873.99681.79623.06204.84621.78424.24534.2453

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 111.213 As1 C2 H8 109.595
As1 C2 H11 109.595 As1 C3 H6 111.213
As1 C3 H9 109.594 As1 C3 H12 109.595
As1 C4 H7 111.213 As1 C4 H10 109.595
As1 C4 H13 109.594 C2 As1 C3 96.611
C2 As1 C4 96.611 C3 As1 C4 96.611
H5 C2 H8 109.129 H5 C2 H11 109.129
H6 C3 H9 109.129 H6 C3 H12 109.129
H7 C4 H10 109.129 H7 C4 H13 109.129
H8 C2 H11 108.122 H9 C3 H12 108.122
H10 C4 H13 108.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability