return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-2353.464458
Energy at 298.15K-2353.471221
Nuclear repulsion energy285.691031
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 BLYP/6-31+G**
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 3050 3034 43.55      
2 A1 2963 2947 26.69      
3 A1 1449 1442 10.11      
4 A1 1269 1262 2.39      
5 A1 886 881 26.43      
6 A1 515 512 2.45      
7 A1 230 228 1.09      
8 A2 3054 3038 0.00      
9 A2 1426 1418 0.00      
10 A2 750 746 0.00      
11 A2 132 131 0.00      
12 E 3055 3039 20.09      
12 E 3055 3039 20.09      
13 E 3050 3034 4.24      
13 E 3050 3034 4.24      
14 E 2964 2948 30.13      
14 E 2964 2948 30.13      
15 E 1441 1433 11.77      
15 E 1441 1433 11.77      
16 E 1432 1425 4.27      
16 E 1432 1425 4.27      
17 E 1240 1234 0.16      
17 E 1240 1234 0.16      
18 E 886 882 12.46      
18 E 886 882 12.46      
19 E 778 773 0.18      
19 E 778 773 0.18      
20 E 527 524 16.16      
20 E 527 524 16.16      
21 E 205 204 0.22      
21 E 205 204 0.22      
22 E 158 157 0.01      
22 E 158 157 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 23598.8 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 23473.7 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 BLYP/6-31+G**
ABC
0.15192 0.15192 0.11018

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.479
C2 0.000 1.734 -0.526
C3 1.502 -0.867 -0.526
C4 -1.502 -0.867 -0.526
H5 0.000 1.573 -1.616
H6 1.362 -0.787 -1.616
H7 -1.362 -0.787 -1.616
H8 -0.892 2.315 -0.246
H9 2.451 -0.385 -0.246
H10 -1.559 -1.930 -0.246
H11 0.892 2.315 -0.246
H12 1.559 -1.930 -0.246
H13 -2.451 -0.385 -0.246

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As12.00452.00452.00452.61962.61962.61962.58442.58442.58442.58442.58442.5844
C22.00453.00413.00411.10173.06583.06581.10093.25213.99221.10093.99223.2521
C32.00453.00413.00413.06581.10173.06583.99221.10093.25213.25211.10093.9922
C42.00453.00413.00413.06583.06581.10173.25213.99221.10093.99223.25211.1009
H52.61961.10173.06583.06582.72472.72471.79573.42314.07201.79574.07203.4231
H62.61963.06581.10173.06582.72472.72474.07201.79573.42313.42311.79574.0720
H72.61963.06583.06581.10172.72472.72473.42314.07201.79574.07203.42311.7957
H82.58441.10093.99223.25211.79574.07203.42314.29714.29711.78484.90183.1170
H92.58443.25211.10093.99223.42311.79574.07204.29714.29713.11701.78484.9018
H102.58443.99223.25211.10094.07203.42311.79574.29714.29714.90183.11701.7848
H112.58441.10093.25213.99221.79573.42314.07201.78483.11704.90184.29714.2971
H122.58443.99221.10093.25214.07201.79573.42314.90181.78483.11704.29714.2971
H132.58443.25213.99221.10093.42314.07201.79573.11704.90181.78484.29714.2971

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 111.666 As1 C2 H8 109.171
As1 C2 H11 109.171 As1 C3 H6 111.666
As1 C3 H9 109.171 As1 C3 H12 109.171
As1 C4 H7 111.666 As1 C4 H10 109.171
As1 C4 H13 109.171 C2 As1 C3 97.068
C2 As1 C4 97.068 C3 As1 C4 97.068
H5 C2 H8 109.231 H5 C2 H11 109.231
H6 C3 H9 109.231 H6 C3 H12 109.231
H7 C4 H10 109.231 H7 C4 H13 109.231
H8 C2 H11 108.308 H9 C3 H12 108.308
H10 C4 H13 108.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.312      
2 C -0.573      
3 C -0.573      
4 C -0.573      
5 H 0.157      
6 H 0.157      
7 H 0.157      
8 H 0.156      
9 H 0.156      
10 H 0.156      
11 H 0.156      
12 H 0.156      
13 H 0.156      


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 -0.916 0.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.772 0.000 0.000
y 0.000 -39.772 0.000
z 0.000 0.000 -42.874
Traceless
 xyz
x 1.551 0.000 0.000
y 0.000 1.551 0.000
z 0.000 0.000 -3.101
Polar
3z2-r2-6.203
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 11.392 0.000 0.000
y 0.000 11.392 0.000
z 0.000 0.000 9.911


<r2> (average value of r2) Å2
<r2> 144.730
(<r2>)1/2 12.030