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: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-65.974354
Energy at 298.15K-65.983229
HF Energy-65.009063
Nuclear repulsion energy142.482364
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 MP2/CEP-31G*
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 3263 3098 0.00      
2 Ag 3110 2952 0.00      
3 Ag 1606 1525 0.00      
4 Ag 1491 1416 0.00      
5 Ag 1446 1372 0.00      
6 Ag 1301 1235 0.00      
7 Ag 1119 1063 0.00      
8 Ag 718 681 0.00      
9 Ag 600 570 0.00      
10 Ag 392 372 0.00      
11 Au 3214 3052 20.07      
12 Au 1490 1414 23.78      
13 Au 1145 1087 0.03      
14 Au 303 287 2.87      
15 Au 184 174 8.27      
16 Au 134 127 9.59      
17 Bg 3214 3051 0.00      
18 Bg 1488 1413 0.00      
19 Bg 1115 1059 0.00      
20 Bg 410 389 0.00      
21 Bg 177 168 0.00      
22 Bu 3263 3098 2.22      
23 Bu 3110 2952 15.66      
24 Bu 1636 1553 159.77      
25 Bu 1496 1421 31.19      
26 Bu 1450 1377 4.31      
27 Bu 1193 1133 0.57      
28 Bu 979 929 8.83      
29 Bu 537 510 44.93      
30 Bu 286 271 26.55      

Unscaled Zero Point Vibrational Energy (zpe) 20934.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19874.7 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 MP2/CEP-31G*
ABC
0.16832 0.12630 0.07421

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.688 0.000
N2 0.000 -0.688 0.000
O3 -1.094 1.357 0.000
O4 1.094 -1.357 0.000
C5 1.344 1.306 0.000
C6 -1.344 -1.306 0.000
H7 1.161 2.388 0.000
H8 1.892 0.973 0.896
H9 1.892 0.973 -0.896
H10 -1.161 -2.388 0.000
H11 -1.892 -0.973 0.896
H12 -1.892 -0.973 -0.896

Atom - Atom Distances (Å)
  N1 N2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
N11.37521.28232.31871.47942.40412.05882.11312.11313.28722.67242.6724
N21.37522.31871.28232.40411.47943.28722.67242.67242.05882.11312.1131
O31.28232.31873.48572.43842.67442.47933.14113.14113.74522.62102.6210
O42.31871.28233.48572.67442.43843.74522.62102.62102.47933.14113.1411
C51.47942.40412.43842.67443.74781.09731.10171.10174.46294.05844.0584
C62.40411.47942.67442.43843.74784.46294.05844.05841.09731.10171.1017
H72.05883.28722.47933.74521.09734.46291.82701.82705.31014.62844.6284
H82.11312.67243.14112.62101.10174.05841.82701.79194.62844.25584.6177
H92.11312.67243.14112.62101.10174.05841.82701.79194.62844.61774.2558
H103.28722.05883.74522.47934.46291.09735.31014.62844.62841.82701.8270
H112.67242.11312.62103.14114.05841.10174.62844.25584.61771.82701.7919
H122.67242.11312.62103.14114.05841.10174.62844.61774.25581.82701.7919

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 121.468 N1 N2 C6 114.695
N1 C5 H7 105.102 N1 C5 H8 109.024
N1 C5 H9 109.024 N2 N1 O3 121.468
N2 N1 C5 114.695 N2 C6 H10 105.102
N2 C6 H11 109.024 N2 C6 H12 109.024
O3 N1 C5 123.836 O4 N2 C6 123.836
H7 C5 H8 112.368 H7 C5 H9 112.368
H8 C5 H9 108.819 H10 C6 H11 112.368
H10 C6 H12 112.368 H11 C6 H12 108.819
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability