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: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-337.658696
Energy at 298.15K-337.667120
Nuclear repulsion energy250.198159
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/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 3138 3118 0.00      
2 Ag 3009 2989 0.00      
3 Ag 1517 1507 0.00      
4 Ag 1406 1397 0.00      
5 Ag 1294 1286 0.00      
6 Ag 1189 1182 0.00      
7 Ag 1005 998 0.00      
8 Ag 661 657 0.00      
9 Ag 558 554 0.00      
10 Ag 356 354 0.00      
11 Au 3071 3051 13.37      
12 Au 1493 1483 23.92      
13 Au 1108 1100 0.24      
14 Au 255 254 1.42      
15 Au 183 182 12.08      
16 Au 110 109 1.99      
17 Bg 3070 3050 0.00      
18 Bg 1490 1480 0.00      
19 Bg 1076 1069 0.00      
20 Bg 377 375 0.00      
21 Bg 141 140 0.00      
22 Bu 3139 3118 2.55      
23 Bu 3009 2989 10.50      
24 Bu 1507 1497 18.94      
25 Bu 1402 1393 9.36      
26 Bu 1215 1207 62.38      
27 Bu 1072 1065 40.25      
28 Bu 854 848 26.61      
29 Bu 455 452 25.43      
30 Bu 275 273 25.91      

Unscaled Zero Point Vibrational Energy (zpe) 19716.6 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 19588.5 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 BLYP/3-21G*
ABC
0.15662 0.12690 0.07203

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.690 0.000
N2 0.000 -0.690 0.000
O3 -1.145 1.380 0.000
O4 1.145 -1.380 0.000
C5 1.379 1.283 0.000
C6 -1.379 -1.283 0.000
H7 1.223 2.365 0.000
H8 1.918 0.938 0.894
H9 1.918 0.938 -0.894
H10 -1.223 -2.365 0.000
H11 -1.918 -0.938 0.894
H12 -1.918 -0.938 -0.894

Atom - Atom Distances (Å)
  N1 N2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
N11.37971.33712.36551.50132.40722.07442.13042.13043.29092.66972.6697
N21.37972.36551.33712.40721.50133.29092.66972.66972.07442.13042.1304
O31.33712.36553.58662.52622.67332.56503.22123.22123.74612.60192.6019
O42.36551.33713.58662.67332.52623.74612.60192.60192.56503.22123.2212
C51.50132.40722.52622.67333.76741.09341.09901.09904.48134.07474.0747
C62.40721.50132.67332.52623.76744.48134.07474.07471.09341.09901.0990
H72.07443.29092.56503.74611.09344.48131.82151.82155.32564.64514.6451
H82.13042.66973.22122.60191.09904.07471.82151.78744.64514.27014.6291
H92.13042.66973.22122.60191.09904.07471.82151.78744.64514.62914.2701
H103.29092.07443.74612.56504.48131.09345.32564.64514.64511.82151.8215
H112.66972.13042.60193.22124.07471.09904.64514.27014.62911.82151.7874
H122.66972.13042.60193.22124.07471.09904.64514.62914.27011.82151.7874

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 121.075 N1 N2 C6 113.274
N1 C5 H7 105.067 N1 C5 H8 109.045
N1 C5 H9 109.045 N2 N1 O3 121.075
N2 N1 C5 113.274 N2 C6 H10 105.067
N2 C6 H11 109.045 N2 C6 H12 109.045
O3 N1 C5 125.651 O4 N2 C6 125.651
H7 C5 H8 112.367 H7 C5 H9 112.367
H8 C5 H9 108.817 H10 C6 H11 112.367
H10 C6 H12 112.367 H11 C6 H12 108.817
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.004      
2 N 0.004      
3 O -0.323      
4 O -0.323      
5 C -0.359      
6 C -0.359      
7 H 0.219      
8 H 0.230      
9 H 0.230      
10 H 0.219      
11 H 0.230      
12 H 0.230      


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 -34.429 8.874 0.000
y 8.874 -36.369 0.000
z 0.000 0.000 -34.349
Traceless
 xyz
x 0.930 8.874 0.000
y 8.874 -1.980 0.000
z 0.000 0.000 1.050
Polar
3z2-r22.100
x2-y21.940
xy8.874
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 158.196
(<r2>)1/2 12.578