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All results from a given calculation for CH3NHNHCH3 (dimethyl hydrazine)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-190.428614
Energy at 298.15K-190.439000
Nuclear repulsion energy137.204933
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*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3554 3370 0.68      
2 A 3154 2991 2.55      
3 A 3106 2946 5.88      
4 A 3023 2867 119.12      
5 A 1582 1500 1.69      
6 A 1552 1472 1.09      
7 A 1523 1444 0.04      
8 A 1478 1401 0.00      
9 A 1291 1225 14.81      
10 A 1176 1115 1.04      
11 A 1157 1097 0.01      
12 A 958 909 15.65      
13 A 748 710 166.06      
14 A 344 326 10.77      
15 A 309 293 0.23      
16 A 186 177 0.51      
17 B 3571 3386 1.52      
18 B 3154 2990 52.68      
19 B 3107 2946 74.47      
20 B 3008 2852 9.82      
21 B 1553 1473 11.75      
22 B 1515 1437 16.19      
23 B 1488 1411 0.16      
24 B 1461 1386 0.67      
25 B 1194 1132 5.52      
26 B 1153 1094 18.24      
27 B 1048 994 0.32      
28 B 774 734 38.56      
29 B 512 486 2.96      
30 B 226 214 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 24451.5 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 23187.3 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*
ABC
0.50105 0.18694 0.15388

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.156 0.688 -0.679
N2 0.156 -0.688 -0.679
C3 0.156 1.438 0.526
C4 -0.156 -1.438 0.526
H5 -1.140 0.772 -0.907
H6 1.140 -0.772 -0.907
H7 -0.120 2.483 0.355
H8 -0.349 1.099 1.445
H9 1.236 1.406 0.702
H10 0.120 -2.483 0.355
H11 0.349 -1.099 1.445
H12 -1.236 -1.406 0.702

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
N11.41121.45332.44421.01391.96542.07142.17192.08813.34662.82132.7315
N21.41122.44421.45331.96541.01393.34662.82132.73152.07142.17192.0881
C31.45332.44422.89302.04372.81221.09381.10161.09523.92462.70513.1712
C42.44421.45332.89302.81222.04373.92462.70513.17121.09381.10161.0952
H51.01391.96542.04372.81222.75362.35782.50292.93903.71133.35402.7098
H61.96541.01392.81222.04372.75363.71133.35402.70982.35782.50292.9390
H72.07143.34661.09383.92462.35783.71131.77621.76614.97113.77294.0604
H82.17192.82131.10162.70512.50293.35401.77621.77713.77292.30592.7591
H92.08812.73151.09523.17122.93902.70981.76611.77714.06042.75913.7441
H103.34662.07143.92461.09383.71132.35784.97113.77294.06041.77621.7661
H112.82132.17192.70511.10163.35402.50293.77292.30592.75911.77621.7771
H122.73152.08813.17121.09522.70982.93904.06042.75913.74411.76611.7771

picture of dimethyl hydrazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 C4 117.132 N1 N2 H6 107.139
N1 C3 H7 107.994 N1 C3 H8 115.764
N1 C3 H9 109.236 N2 N1 C3 117.132
N2 N1 H5 107.139 N2 C4 H10 107.994
N2 C4 H11 115.764 N2 C4 H12 109.236
C3 N1 H5 110.599 C4 N2 H6 110.599
H7 C3 H8 108.005 H7 C3 H9 107.575
H8 C3 H9 107.986 H10 C4 H11 108.005
H10 C4 H12 107.575 H11 C4 H12 107.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.454      
2 N -0.454      
3 C -0.378      
4 C -0.378      
5 H 0.329      
6 H 0.329      
7 H 0.179      
8 H 0.152      
9 H 0.173      
10 H 0.179      
11 H 0.152      
12 H 0.173      


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 1.527 1.527
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.501 -1.819 0.000
y -1.819 -25.535 0.000
z 0.000 0.000 -29.225
Traceless
 xyz
x 3.879 -1.819 0.000
y -1.819 0.828 0.000
z 0.000 0.000 -4.707
Polar
3z2-r2-9.414
x2-y22.034
xy-1.819
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.003 -0.219 0.000
y -0.219 6.293 0.000
z 0.000 0.000 4.951


<r2> (average value of r2) Å2
<r2> 91.026
(<r2>)1/2 9.541