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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-2344.471590
Energy at 298.15K-2344.478956
HF Energy-2344.471590
Nuclear repulsion energy289.874624
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 wB97X-D/3-21G*
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 3171 3006 22.98      
2 A1 3075 2914 13.09      
3 A1 1560 1479 13.50      
4 A1 1378 1306 10.33      
5 A1 950 901 51.76      
6 A1 607 575 1.91      
7 A1 257 244 0.64      
8 A2 3171 3005 0.00      
9 A2 1526 1446 0.00      
10 A2 798 756 0.00      
11 A2 166 157 0.00      
12 E 3172 3006 11.55      
12 E 3172 3006 11.53      
13 E 3169 3004 4.99      
13 E 3169 3004 5.00      
14 E 3076 2916 12.82      
14 E 3076 2916 12.87      
15 E 1544 1463 16.95      
15 E 1544 1463 16.96      
16 E 1539 1458 2.72      
16 E 1539 1458 2.72      
17 E 1355 1284 9.51      
17 E 1355 1284 9.52      
18 E 945 896 20.06      
18 E 945 896 20.10      
19 E 832 788 2.87      
19 E 832 788 2.88      
20 E 626 593 14.66      
20 E 626 593 14.69      
21 E 235 223 0.11      
21 E 235 223 0.11      
22 E 193 183 0.00      
22 E 193 183 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25014.5 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 23708.7 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 wB97X-D/3-21G*
ABC
0.15544 0.15544 0.11592

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.487
C2 0.000 1.695 -0.535
C3 1.468 -0.848 -0.535
C4 -1.468 -0.848 -0.535
H5 0.000 1.501 -1.612
H6 1.300 -0.750 -1.612
H7 -1.300 -0.750 -1.612
H8 -0.889 2.276 -0.268
H9 2.416 -0.369 -0.268
H10 -1.527 -1.908 -0.268
H11 0.889 2.276 -0.268
H12 1.527 -1.908 -0.268
H13 -2.416 -0.369 -0.268

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.97971.97971.97972.58112.58112.58112.55772.55772.55772.55772.55772.5577
C21.97972.93612.93611.09462.97172.97171.09473.18843.92211.09473.92213.1884
C31.97972.93612.93612.97171.09462.97173.92211.09473.18843.18841.09473.9221
C41.97972.93612.93612.97172.97171.09463.18843.92211.09473.92213.18841.0947
H52.58111.09462.97172.97172.59962.59961.78813.33723.96951.78813.96953.3372
H62.58112.97171.09462.97172.59962.59963.96951.78813.33723.33721.78813.9695
H72.58112.97172.97171.09462.59962.59963.33723.96951.78813.96953.33721.7881
H82.55771.09473.92213.18841.78813.96953.33724.23234.23231.77704.83113.0541
H92.55773.18841.09473.92213.33721.78813.96954.23234.23233.05411.77704.8311
H102.55773.92213.18841.09473.96953.33721.78814.23234.23234.83113.05411.7770
H112.55771.09473.18843.92211.78813.33723.96951.77703.05414.83114.23234.2323
H122.55773.92211.09473.18843.96951.78813.33724.83111.77703.05414.23234.2323
H132.55773.18843.92211.09473.33723.96951.78813.05414.83111.77704.23234.2323

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 110.878 As1 C2 H8 109.182
As1 C2 H11 109.182 As1 C3 H6 110.878
As1 C3 H9 109.182 As1 C3 H12 109.182
As1 C4 H7 110.878 As1 C4 H10 109.182
As1 C4 H13 109.182 C2 As1 C3 95.726
C2 As1 C4 95.726 C3 As1 C4 95.726
H5 C2 H8 109.523 H5 C2 H11 109.523
H6 C3 H9 109.523 H6 C3 H12 109.523
H7 C4 H10 109.523 H7 C4 H13 109.523
H8 C2 H11 108.512 H9 C3 H12 108.512
H10 C4 H13 108.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.507      
2 C -0.794      
3 C -0.794      
4 C -0.794      
5 H 0.205      
6 H 0.205      
7 H 0.205      
8 H 0.210      
9 H 0.210      
10 H 0.210      
11 H 0.210      
12 H 0.210      
13 H 0.210      


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 -1.087 1.087
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.938 0.000 0.000
y 0.000 -37.938 0.000
z 0.000 0.000 -41.189
Traceless
 xyz
x 1.626 0.000 0.000
y 0.000 1.626 0.000
z 0.000 0.000 -3.251
Polar
3z2-r2-6.502
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 8.754 0.000 0.000
y 0.000 8.751 0.003
z 0.000 0.003 7.262


<r2> (average value of r2) Å2
<r2> 139.441
(<r2>)1/2 11.808