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 ((Z)-1,2-Dimethyldiazene)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-186.977863
Energy at 298.15K-186.985408
HF Energy-186.977863
Nuclear repulsion energy121.767999
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 HF/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 A1 3325 3011 2.41      
2 A1 3203 2901 10.68      
3 A1 1744 1579 4.46      
4 A1 1645 1490 0.57      
5 A1 1571 1423 21.49      
6 A1 1198 1085 9.14      
7 A1 874 792 0.82      
8 A1 377 341 0.55      
9 A2 3259 2951 0.00      
10 A2 1666 1509 0.00      
11 A2 1217 1102 0.00      
12 A2 496 449 0.00      
13 A2 87 79 0.00      
14 B1 3262 2954 40.06      
15 B1 1686 1527 30.89      
16 B1 1074 972 1.78      
17 B1 200 181 0.42      
18 B2 3323 3009 32.38      
19 B2 3197 2895 2.63      
20 B2 1640 1485 16.72      
21 B2 1551 1404 7.52      
22 B2 1275 1154 27.06      
23 B2 947 858 7.39      
24 B2 660 598 3.12      

Unscaled Zero Point Vibrational Energy (zpe) 19738.3 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 17875.0 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 HF/3-21G
ABC
0.54239 0.22060 0.16654

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.616 -0.784
N2 0.000 -0.616 -0.784
C3 0.000 1.377 0.508
C4 0.000 -1.377 0.508
H5 0.000 2.423 0.251
H6 0.000 -2.423 0.251
H7 -0.882 1.149 1.095
H8 0.882 1.149 1.095
H9 0.882 -1.149 1.095
H10 -0.882 -1.149 1.095

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10
N11.23241.49892.37492.08173.21012.14232.14232.72402.7240
N21.23242.37491.49893.21012.08172.72402.72402.14232.1423
C31.49892.37492.75371.07703.80821.08381.08382.73872.7387
C42.37491.49892.75373.80821.07702.73872.73871.08381.0838
H52.08173.21011.07703.80824.84541.76461.76463.77413.7741
H63.21012.08173.80821.07704.84543.77413.77411.76461.7646
H72.14232.72401.08382.73871.76463.77411.76442.89652.2971
H82.14232.72401.08382.73871.76463.77411.76442.29712.8965
H92.72402.14232.73871.08383.77411.76462.89652.29711.7644
H102.72402.14232.73871.08383.77411.76462.29712.89651.7644

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 120.497 N1 C3 H5 106.686
N1 C3 H7 111.072 N1 C3 H8 111.072
N2 N1 C3 120.497 N2 C4 H6 106.686
N2 C4 H9 111.072 N2 C4 H10 111.072
H5 C3 H7 109.500 H5 C3 H8 109.500
H6 C4 H9 109.500 H6 C4 H10 109.500
H7 C3 H8 108.972 H9 C4 H10 108.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.231      
2 N -0.231      
3 C -0.465      
4 C -0.465      
5 H 0.250      
6 H 0.250      
7 H 0.223      
8 H 0.223      
9 H 0.223      
10 H 0.223      


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 3.899 3.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.811 0.000 0.000
y 0.000 -23.361 0.000
z 0.000 0.000 -29.562
Traceless
 xyz
x 1.651 0.000 0.000
y 0.000 3.826 0.000
z 0.000 0.000 -5.476
Polar
3z2-r2-10.953
x2-y2-1.450
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.450 0.000 0.000
y 0.000 6.492 0.000
z 0.000 0.000 3.879


<r2> (average value of r2) Å2
<r2> 80.988
(<r2>)1/2 8.999