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: HF/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 HF/6-31+G**
 hartrees
Energy at 0K-2350.870112
Energy at 298.15K-2350.877517
Nuclear repulsion energy291.744856
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 HF/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 3264 2951 51.88      
2 A1 3179 2875 28.65      
3 A1 1600 1446 9.64      
4 A1 1443 1305 2.93      
5 A1 1001 905 36.81      
6 A1 608 550 2.11      
7 A1 253 229 1.55      
8 A2 3267 2954 0.00      
9 A2 1581 1430 0.00      
10 A2 836 756 0.00      
11 A2 161 146 0.00      
12 E 3268 2955 25.47      
12 E 3268 2955 25.47      
13 E 3262 2950 5.90      
13 E 3262 2950 5.90      
14 E 3179 2874 35.11      
14 E 3179 2874 35.11      
15 E 1595 1442 10.71      
15 E 1595 1442 10.71      
16 E 1584 1432 4.69      
16 E 1584 1432 4.69      
17 E 1418 1282 1.21      
17 E 1418 1282 1.21      
18 E 997 901 17.20      
18 E 997 901 17.20      
19 E 878 794 0.01      
19 E 878 794 0.01      
20 E 623 563 16.22      
20 E 623 563 16.22      
21 E 232 210 0.37      
21 E 232 210 0.37      
22 E 183 165 0.04      
22 E 183 165 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 25813.6 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 23340.7 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 HF/6-31+G**
ABC
0.15947 0.15947 0.11343

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.455
C2 0.000 1.708 -0.499
C3 1.480 -0.854 -0.499
C4 -1.480 -0.854 -0.499
H5 0.000 1.566 -1.575
H6 1.356 -0.783 -1.575
H7 -1.356 -0.783 -1.575
H8 -0.877 2.282 -0.219
H9 2.415 -0.381 -0.219
H10 -1.537 -1.901 -0.219
H11 0.877 2.282 -0.219
H12 1.537 -1.901 -0.219
H13 -2.415 -0.381 -0.219

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.95651.95651.95652.56372.56372.56372.53582.53582.53582.53582.53582.5358
C21.95652.95902.95901.08543.03413.03411.08463.20523.93271.08463.93273.2052
C31.95652.95902.95903.03411.08543.03413.93271.08463.20523.20521.08463.9327
C41.95652.95902.95903.03413.03411.08543.20523.93271.08463.93273.20521.0846
H52.56371.08543.03413.03412.71292.71291.76583.38504.02731.76584.02733.3850
H62.56373.03411.08543.03412.71292.71294.02731.76583.38503.38501.76584.0273
H72.56373.03413.03411.08542.71292.71293.38504.02731.76584.02733.38501.7658
H82.53581.08463.93273.20521.76584.02733.38504.23404.23401.75504.82933.0743
H92.53583.20521.08463.93273.38501.76584.02734.23404.23403.07431.75504.8293
H102.53583.93273.20521.08464.02733.38501.76584.23404.23404.82933.07431.7550
H112.53581.08463.20523.93271.76583.38504.02731.75503.07434.82934.23404.2340
H122.53583.93271.08463.20524.02731.76583.38504.82931.75503.07434.23404.2340
H132.53583.20523.93271.08463.38504.02731.76583.07434.82931.75504.23404.2340

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 111.645 As1 C2 H8 109.636
As1 C2 H11 109.636 As1 C3 H6 111.645
As1 C3 H9 109.636 As1 C3 H12 109.636
As1 C4 H7 111.645 As1 C4 H10 109.636
As1 C4 H13 109.636 C2 As1 C3 98.263
C2 As1 C4 98.263 C3 As1 C4 98.263
H5 C2 H8 108.923 H5 C2 H11 108.923
H6 C3 H9 108.923 H6 C3 H12 108.923
H7 C4 H10 108.923 H7 C4 H13 108.923
H8 C2 H11 108.002 H9 C3 H12 108.002
H10 C4 H13 108.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 As 0.286      
2 C -0.517      
3 C -0.517      
4 C -0.517      
5 H 0.137      
6 H 0.137      
7 H 0.137      
8 H 0.143      
9 H 0.143      
10 H 0.143      
11 H 0.143      
12 H 0.143      
13 H 0.143      


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 -1.292 1.292
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.146 0.000 0.000
y 0.000 -39.146 0.000
z 0.000 0.000 -43.348
Traceless
 xyz
x 2.101 0.000 0.000
y 0.000 2.101 0.000
z 0.000 0.000 -4.202
Polar
3z2-r2-8.405
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 10.022 0.000 0.000
y 0.000 10.022 0.000
z 0.000 0.000 8.671


<r2> (average value of r2) Å2
<r2> 140.105
(<r2>)1/2 11.837