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 C2H6N2O2 ((E)-Azodioxymethane)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-337.642358
Energy at 298.15K-337.651296
Nuclear repulsion energy255.649277
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 mPW1PW91/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3251 3087 0.00      
2 Ag 3108 2952 0.00      
3 Ag 1560 1482 0.00      
4 Ag 1474 1399 0.00      
5 Ag 1394 1324 0.00      
6 Ag 1340 1272 0.00      
7 Ag 1084 1030 0.00      
8 Ag 741 704 0.00      
9 Ag 611 580 0.00      
10 Ag 382 363 0.00      
11 Au 3182 3022 3.47      
12 Au 1533 1456 33.58      
13 Au 1161 1103 0.99      
14 Au 295 280 1.65      
15 Au 207 196 15.05      
16 Au 137 130 3.53      
17 Bg 3181 3021 0.00      
18 Bg 1529 1452 0.00      
19 Bg 1131 1074 0.00      
20 Bg 488 464 0.00      
21 Bg 170 162 0.00      
22 Bu 3251 3087 0.71      
23 Bu 3109 2952 5.77      
24 Bu 1543 1465 17.94      
25 Bu 1461 1387 20.16      
26 Bu 1275 1211 102.18      
27 Bu 1146 1088 45.43      
28 Bu 927 880 46.25      
29 Bu 486 462 32.26      
30 Bu 296 281 29.14      

Unscaled Zero Point Vibrational Energy (zpe) 20727.1 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 19682.5 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 mPW1PW91/3-21G*
ABC
0.16319 0.13329 0.07544

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.662 0.000
N2 0.000 -0.662 0.000
O3 -1.130 1.339 0.000
O4 1.130 -1.339 0.000
C5 1.343 1.261 0.000
C6 -1.343 -1.261 0.000
H7 1.181 2.334 0.000
H8 1.883 0.922 0.886
H9 1.883 0.922 -0.886
H10 -1.181 -2.334 0.000
H11 -1.883 -0.922 0.886
H12 -1.883 -0.922 -0.886

Atom - Atom Distances (Å)
  N1 N2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
N11.32361.31732.29801.47032.34512.04732.09712.09713.22032.61532.6153
N21.32362.29801.31732.34511.47033.22032.61532.61532.04732.09712.0971
O31.31732.29803.50442.47372.60892.51593.16783.16783.67372.54312.5431
O42.29801.31733.50442.60892.47373.67372.54312.54312.51593.16783.1678
C51.47032.34512.47372.60893.68381.08521.09121.09124.39243.99453.9945
C62.34511.47032.60892.47373.68384.39243.99453.99451.08521.09121.0912
H72.04733.22032.51593.67371.08524.39241.80821.80825.23174.55834.5583
H82.09712.61533.16782.54311.09123.99451.80821.77144.55834.19354.5523
H92.09712.61533.16782.54311.09123.99451.80821.77144.55834.55234.1935
H103.22032.04733.67372.51594.39241.08525.23174.55834.55831.80821.8082
H112.61532.09712.54313.16783.99451.09124.55834.19354.55231.80821.7714
H122.61532.09712.54313.16783.99451.09124.55834.55234.19351.80821.7714

picture of (E)-Azodioxymethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O4 120.952 N1 N2 C6 114.044
N1 C5 H7 105.483 N1 C5 H8 109.011
N1 C5 H9 109.011 N2 N1 O3 120.952
N2 N1 C5 114.044 N2 C6 H10 105.483
N2 C6 H11 109.011 N2 C6 H12 109.011
O3 N1 C5 125.003 O4 N2 C6 125.003
H7 C5 H8 112.355 H7 C5 H9 112.355
H8 C5 H9 108.512 H10 C6 H11 112.355
H10 C6 H12 112.355 H11 C6 H12 108.512
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.009      
2 N -0.009      
3 O -0.368      
4 O -0.368      
5 C -0.430      
6 C -0.430      
7 H 0.262      
8 H 0.273      
9 H 0.273      
10 H 0.262      
11 H 0.273      
12 H 0.273      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.089 9.837 0.000
y 9.837 -34.889 0.000
z 0.000 0.000 -34.210
Traceless
 xyz
x -1.540 9.837 0.000
y 9.837 0.260 0.000
z 0.000 0.000 1.279
Polar
3z2-r22.559
x2-y2-1.200
xy9.837
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.028 -0.775 0.000
y -0.775 8.074 0.000
z 0.000 0.000 3.559


<r2> (average value of r2) Å2
<r2> 152.277
(<r2>)1/2 12.340