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: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-339.525036
Energy at 298.15K-339.534028
Nuclear repulsion energy259.525690
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 B3PW91/6-31+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 Ag 3229 3100 0.00      
2 Ag 3082 2959 0.00      
3 Ag 1598 1534 0.00      
4 Ag 1460 1402 0.00      
5 Ag 1449 1391 0.00      
6 Ag 1406 1350 0.00      
7 Ag 1107 1063 0.00      
8 Ag 803 771 0.00      
9 Ag 629 604 0.00      
10 Ag 408 392 0.00      
11 Au 3164 3038 4.84      
12 Au 1463 1404 29.25      
13 Au 1125 1080 0.06      
14 Au 330 317 5.40      
15 Au 186 179 13.11      
16 Au 105 101 4.45      
17 Bg 3164 3037 0.00      
18 Bg 1460 1402 0.00      
19 Bg 1100 1056 0.00      
20 Bg 509 488 0.00      
21 Bg 145 139 0.00      
22 Bu 3230 3101 0.74      
23 Bu 3082 2959 10.82      
24 Bu 1480 1421 3.32      
25 Bu 1431 1374 68.86      
26 Bu 1370 1315 381.44      
27 Bu 1159 1113 42.48      
28 Bu 967 928 40.49      
29 Bu 550 528 36.58      
30 Bu 295 283 24.66      

Unscaled Zero Point Vibrational Energy (zpe) 20742.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 19915.1 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 B3PW91/6-31+G**
ABC
0.17526 0.13178 0.07740

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.651 0.000
N2 0.000 -0.651 0.000
O3 -1.078 1.315 0.000
O4 1.078 -1.315 0.000
C5 1.315 1.294 0.000
C6 -1.315 -1.294 0.000
H7 1.119 2.363 0.000
H8 1.873 0.980 0.886
H9 1.873 0.980 -0.886
H10 -1.119 -2.363 0.000
H11 -1.873 -0.980 0.886
H12 -1.873 -0.980 -0.886

Atom - Atom Distances (Å)
  N1 N2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
N11.30241.26552.24181.46382.34792.04482.09752.09753.21492.63652.6365
N21.30242.24181.26552.34791.46383.21492.63652.63652.04482.09752.0975
O31.26552.24183.39982.39302.61922.43363.09873.09873.67772.58452.5845
O42.24181.26553.39982.61922.39303.67772.58452.58452.43363.09873.0987
C51.46382.34792.39302.61923.68981.08701.09261.09264.39264.01454.0145
C62.34791.46382.61922.39303.68984.39264.01454.01451.08701.09261.0926
H72.04483.21492.43363.67771.08704.39261.80731.80735.22854.57224.5722
H82.09752.63653.09872.58451.09264.01451.80731.77104.57224.22714.5831
H92.09752.63653.09872.58451.09264.01451.80731.77104.57224.58314.2271
H103.21492.04483.67772.43364.39261.08705.22854.57224.57221.80731.8073
H112.63652.09752.58453.09874.01451.09264.57224.22714.58311.80731.7710
H122.63652.09752.58453.09874.01451.09264.57224.58314.22711.80731.7710

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 121.618 N1 N2 C6 116.040
N1 C5 H7 105.618 N1 C5 H8 109.408
N1 C5 H9 109.408 N2 N1 O3 121.618
N2 N1 C5 116.040 N2 C6 H10 105.618
N2 C6 H11 109.408 N2 C6 H12 109.408
O3 N1 C5 122.343 O4 N2 C6 122.343
H7 C5 H8 112.034 H7 C5 H9 112.034
H8 C5 H9 108.282 H10 C6 H11 112.034
H10 C6 H12 112.034 H11 C6 H12 108.282
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.030      
2 N 0.030      
3 O -0.240      
4 O -0.240      
5 C -0.397      
6 C -0.397      
7 H 0.199      
8 H 0.204      
9 H 0.204      
10 H 0.199      
11 H 0.204      
12 H 0.204      


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 -35.811 10.789 0.000
y 10.789 -37.690 0.000
z 0.000 0.000 -34.754
Traceless
 xyz
x 0.410 10.789 0.000
y 10.789 -2.407 0.000
z 0.000 0.000 1.997
Polar
3z2-r23.994
x2-y21.879
xy10.789
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.629 -0.920 0.000
y -0.920 10.053 0.000
z 0.000 0.000 5.305


<r2> (average value of r2) Å2
<r2> 150.227
(<r2>)1/2 12.257