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 CH3NNCH3 ((E)-1,2-Dimethyldiazene)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-189.215355
Energy at 298.15K-189.222774
HF Energy-189.215355
Nuclear repulsion energy120.230831
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 B3PW91/6-31G(2df,p)
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 3130 3009 0.00      
2 Ag 3029 2912 0.00      
3 Ag 1692 1627 0.00      
4 Ag 1462 1406 0.00      
5 Ag 1400 1346 0.00      
6 Ag 1216 1169 0.00      
7 Ag 929 893 0.00      
8 Ag 597 574 0.00      
9 Au 3116 2995 22.04      
10 Au 1467 1410 12.84      
11 Au 1133 1089 0.40      
12 Au 291 280 6.67      
13 Au 164 158 2.57      
14 Bg 3116 2996 0.00      
15 Bg 1466 1409 0.00      
16 Bg 1031 992 0.00      
17 Bg 229 220 0.00      
18 Bu 3129 3008 32.39      
19 Bu 3027 2911 45.21      
20 Bu 1469 1413 24.73      
21 Bu 1402 1348 1.64      
22 Bu 1132 1088 0.83      
23 Bu 1038 998 10.22      
24 Bu 349 336 15.46      

Unscaled Zero Point Vibrational Energy (zpe) 18506.4 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 17792.1 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 B3PW91/6-31G(2df,p)
ABC
1.39830 0.14928 0.14198

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.371 0.495 0.000
N2 -0.371 -0.495 0.000
C3 -0.371 1.750 0.000
C4 0.371 -1.750 0.000
H5 -1.455 1.594 0.000
H6 1.455 -1.594 0.000
H7 -0.065 2.326 0.880
H8 -0.065 2.326 -0.880
H9 0.065 -2.326 0.880
H10 0.065 -2.326 -0.880

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10
N11.23731.45802.24502.13162.35392.07772.07772.97072.9707
N21.23732.24501.45802.35392.13162.97072.97072.07772.0777
C31.45802.24503.57781.09513.81051.09551.09554.19244.1924
C42.24501.45803.57783.81051.09514.19244.19241.09551.0955
H52.13162.35391.09513.81054.31721.80051.80054.29584.2958
H62.35392.13163.81051.09514.31724.29584.29581.80051.8005
H72.07772.97071.09554.19241.80054.29581.76074.65324.9752
H82.07772.97071.09554.19241.80054.29581.76074.97524.6532
H92.97072.07774.19241.09554.29581.80054.65324.97521.7607
H102.97072.07774.19241.09554.29581.80054.97524.65321.7607

picture of (E)-1,2-Dimethyldiazene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 C4 112.542 N1 C3 H5 112.434
N1 C3 H7 108.070 N1 C3 H8 108.070
N2 N1 C3 112.542 N2 C4 H6 112.434
N2 C4 H9 108.070 N2 C4 H10 108.070
H5 C3 H7 110.555 H5 C3 H8 110.555
H6 C4 H9 110.555 H6 C4 H10 110.555
H7 C3 H8 106.955 H9 C4 H10 106.955
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.118      
2 N -0.118      
3 C -0.341      
4 C -0.341      
5 H 0.144      
6 H 0.144      
7 H 0.157      
8 H 0.157      
9 H 0.157      
10 H 0.157      


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 -26.976 -1.428 0.000
y -1.428 -19.974 0.000
z 0.000 0.000 -24.090
Traceless
 xyz
x -4.944 -1.428 0.000
y -1.428 5.559 0.000
z 0.000 0.000 -0.615
Polar
3z2-r2-1.229
x2-y2-7.002
xy-1.428
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.799 -0.259 0.000
y -0.259 8.313 0.000
z 0.000 0.000 4.276


<r2> (average value of r2) Å2
<r2> 92.621
(<r2>)1/2 9.624