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

using model chemistry: B3LYP/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/cc-pVQZ
 hartrees
Energy at 0K-2355.767950
Energy at 298.15K-2355.774950
Nuclear repulsion energy288.713144
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 B3LYP/cc-pVQZ
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 3113 3016 32.61      
2 A1 3029 2935 19.65      
3 A1 1482 1436 8.23      
4 A1 1301 1260 3.43      
5 A1 905 877 25.47      
6 A1 557 540 2.76      
7 A1 234 226 1.16      
8 A2 3117 3020 0.00      
9 A2 1459 1413 0.00      
10 A2 765 741 0.00      
11 A2 147 143 0.00      
12 E 3118 3020 14.26      
12 E 3118 3020 14.26      
13 E 3113 3016 2.89      
13 E 3113 3016 2.89      
14 E 3031 2937 19.90      
14 E 3031 2937 19.90      
15 E 1472 1427 8.60      
15 E 1472 1427 8.60      
16 E 1465 1419 3.15      
16 E 1465 1419 3.15      
17 E 1277 1238 0.57      
17 E 1277 1238 0.57      
18 E 905 877 13.55      
18 E 905 877 13.55      
19 E 796 771 0.22      
19 E 796 771 0.22      
20 E 572 554 16.53      
20 E 572 554 16.54      
21 E 211 204 0.24      
21 E 211 204 0.24      
22 E 167 162 0.02      
22 E 167 162 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24181.6 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 23427.2 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 B3LYP/cc-pVQZ
ABC
0.15538 0.15538 0.11203

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.470
C2 0.000 1.721 -0.516
C3 1.490 -0.860 -0.516
C4 -1.490 -0.860 -0.516
H5 0.000 1.562 -1.594
H6 1.353 -0.781 -1.594
H7 -1.353 -0.781 -1.594
H8 -0.883 2.293 -0.237
H9 2.427 -0.382 -0.237
H10 -1.544 -1.911 -0.237
H11 0.883 2.293 -0.237
H12 1.544 -1.911 -0.237
H13 -2.427 -0.382 -0.237

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.98331.98331.98332.58812.58812.58812.55632.55632.55632.55632.55632.5563
C21.98332.98052.98051.08923.04143.04141.08853.22333.95631.08853.95633.2233
C31.98332.98052.98053.04141.08923.04143.95631.08853.22333.22331.08853.9563
C41.98332.98052.98053.04143.04141.08923.22333.95631.08853.95633.22331.0885
H52.58811.08923.04143.04142.70562.70561.77643.39284.03591.77644.03593.3928
H62.58813.04141.08923.04142.70562.70564.03591.77643.39283.39281.77644.0359
H72.58813.04143.04141.08922.70562.70563.39284.03591.77644.03593.39281.7764
H82.55631.08853.95633.22331.77644.03593.39284.25544.25541.76574.85403.0883
H92.55633.22331.08853.95633.39281.77644.03594.25544.25543.08831.76574.8540
H102.55633.95633.22331.08854.03593.39281.77644.25544.25544.85403.08831.7657
H112.55631.08853.22333.95631.77643.39284.03591.76573.08834.85404.25544.2554
H122.55633.95631.08853.22334.03591.77643.39284.85401.76573.08834.25544.2554
H132.55633.22333.95631.08853.39284.03591.77643.08834.85401.76574.25544.2554

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 111.434 As1 C2 H8 109.155
As1 C2 H11 109.155 As1 C3 H6 111.434
As1 C3 H9 109.155 As1 C3 H12 109.155
As1 C4 H7 111.434 As1 C4 H10 109.155
As1 C4 H13 109.155 C2 As1 C3 97.424
C2 As1 C4 97.424 C3 As1 C4 97.424
H5 C2 H8 109.321 H5 C2 H11 109.321
H6 C3 H9 109.321 H6 C3 H12 109.321
H7 C4 H10 109.321 H7 C4 H13 109.321
H8 C2 H11 108.400 H9 C3 H12 108.400
H10 C4 H13 108.400
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 1.278      
2 C -1.274      
3 C -1.274      
4 C -1.274      
5 H 0.239      
6 H 0.239      
7 H 0.239      
8 H 0.305      
9 H 0.305      
10 H 0.305      
11 H 0.305      
12 H 0.305      
13 H 0.305      


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 -0.927 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.194 0.000 0.000
y 0.000 -39.194 0.000
z 0.000 0.000 -42.457
Traceless
 xyz
x 1.631 0.000 0.000
y 0.000 1.631 0.000
z 0.000 0.000 -3.263
Polar
3z2-r2-6.525
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 11.636 0.000 0.000
y 0.000 11.636 0.001
z 0.000 0.001 10.215


<r2> (average value of r2) Å2
<r2> 142.033
(<r2>)1/2 11.918