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All results from a given calculation for CH3NNCH3 ((Z)-1,2-Dimethyldiazene)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-189.223147
Energy at 298.15K-189.230573
HF Energy-189.223147
Nuclear repulsion energy122.887901
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 mPW1PW91/6-31G(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 A1 3178 3034 0.69      
2 A1 3040 2902 11.72      
3 A1 1708 1631 11.26      
4 A1 1476 1409 0.50      
5 A1 1401 1338 19.80      
6 A1 1101 1051 3.80      
7 A1 904 863 0.20      
8 A1 372 356 0.70      
9 A2 3121 2979 0.00      
10 A2 1481 1414 0.00      
11 A2 1094 1045 0.00      
12 A2 486 464 0.00      
13 A2 76 73 0.00      
14 B1 3113 2972 26.77      
15 B1 1508 1439 21.86      
16 B1 940 897 1.55      
17 B1 200 191 0.02      
18 B2 3177 3033 30.45      
19 B2 3042 2904 2.19      
20 B2 1462 1396 11.29      
21 B2 1383 1320 2.88      
22 B2 1182 1129 16.64      
23 B2 981 936 16.21      
24 B2 638 609 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 18530.9 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 17691.4 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 mPW1PW91/6-31G(2df,p)
ABC
0.55106 0.22806 0.17169

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.617 -0.778
N2 0.000 -0.617 -0.778
C3 0.000 1.346 0.497
C4 0.000 -1.346 0.497
H5 0.000 2.411 0.273
H6 0.000 -2.411 0.273
H7 -0.886 1.105 1.095
H8 0.886 1.105 1.095
H9 0.886 -1.105 1.095
H10 -0.886 -1.105 1.095

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10
N11.23371.46812.34002.07903.20502.12822.12822.69352.6935
N21.23372.34001.46813.20502.07902.69352.69352.12822.1282
C31.46812.34002.69141.08883.76351.09571.09572.67342.6734
C42.34001.46812.69143.76351.08882.67342.67341.09571.0957
H52.07903.20501.08883.76354.82231.77981.77983.71793.7179
H63.20502.07903.76351.08884.82233.71793.71791.77981.7798
H72.12822.69351.09572.67341.77983.71791.77172.83212.2095
H82.12822.69351.09572.67341.77983.71791.77172.20952.8321
H92.69352.12822.67341.09573.71791.77982.83212.20951.7717
H102.69352.12822.67341.09573.71791.77982.20952.83211.7717

picture of (Z)-1,2-Dimethyldiazene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 C4 119.765 N1 C3 H5 107.881
N1 C3 H7 111.392 N1 C3 H8 111.392
N2 N1 C3 119.765 N2 C4 H6 107.881
N2 C4 H9 111.392 N2 C4 H10 111.392
H5 C3 H7 109.124 H5 C3 H8 109.124
H6 C4 H9 109.124 H6 C4 H10 109.124
H7 C3 H8 107.890 H9 C4 H10 107.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.103      
2 N -0.103      
3 C -0.385      
4 C -0.385      
5 H 0.166      
6 H 0.166      
7 H 0.161      
8 H 0.161      
9 H 0.161      
10 H 0.161      


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 3.059 3.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.139 0.000 0.000
y 0.000 -23.067 0.000
z 0.000 0.000 -28.219
Traceless
 xyz
x 1.505 0.000 0.000
y 0.000 3.112 0.000
z 0.000 0.000 -4.616
Polar
3z2-r2-9.233
x2-y2-1.071
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.183 0.000 0.000
y 0.000 7.101 0.000
z 0.000 0.000 4.949


<r2> (average value of r2) Å2
<r2> 78.780
(<r2>)1/2 8.876