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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-34.943296
Energy at 298.15K-34.953908
Nuclear repulsion energy81.133787
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/CEP-121G*
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 3769 3405 0.17      
2 A 3262 2947 6.06      
3 A 3226 2914 16.62      
4 A 3164 2859 134.41      
5 A 1704 1539 1.99      
6 A 1654 1495 0.45      
7 A 1626 1469 0.54      
8 A 1584 1431 1.33      
9 A 1385 1251 17.38      
10 A 1267 1145 0.35      
11 A 1234 1115 3.96      
12 A 994 898 19.59      
13 A 840 759 174.63      
14 A 356 321 9.53      
15 A 327 295 0.07      
16 A 193 175 0.84      
17 B 3787 3421 2.06      
18 B 3262 2947 113.99      
19 B 3225 2914 130.01      
20 B 3147 2843 11.84      
21 B 1652 1492 10.75      
22 B 1622 1465 13.22      
23 B 1600 1445 1.04      
24 B 1568 1416 1.27      
25 B 1284 1160 2.43      
26 B 1230 1112 27.65      
27 B 1107 1000 0.75      
28 B 838 757 37.19      
29 B 543 491 3.13      
30 B 236 213 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 25842.7 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 23346.3 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 HF/CEP-121G*
ABC
0.50093 0.18590 0.15285

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.155 0.690 -0.681
N2 0.155 -0.690 -0.681
C3 0.155 1.445 0.530
C4 -0.155 -1.445 0.530
H5 -1.125 0.778 -0.914
H6 1.125 -0.778 -0.914
H7 -0.085 2.488 0.343
H8 -0.384 1.127 1.423
H9 1.221 1.381 0.734
H10 0.085 -2.488 0.343
H11 0.384 -1.127 1.423
H12 -1.221 -1.381 0.734

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
N11.41441.46002.45441.00101.96182.07032.16052.09093.34752.83122.7247
N21.41442.45441.46001.96181.00103.34752.83122.72472.07032.16052.0909
C31.46002.45442.90712.04162.82301.08621.09121.08703.93842.73223.1497
C42.45441.46002.90712.82302.04163.93842.73223.14971.08621.09121.0870
H51.00101.96182.04162.82302.73532.36332.47642.92943.70323.37182.7181
H61.96181.00102.82302.04162.73533.70323.37182.71812.36332.47642.9294
H72.07033.34751.08623.93842.36333.70321.76331.75634.97903.80154.0508
H82.16052.83121.09122.73222.47643.37181.76331.76523.80152.38072.7313
H92.09092.72471.08703.14972.92942.71811.75631.76524.05082.73133.6859
H103.34752.07033.93841.08623.70322.36334.97903.80154.05081.76331.7563
H112.83122.16052.73221.09123.37182.47643.80152.38072.73131.76331.7652
H122.72472.09093.14971.08702.71812.92944.05082.73133.68591.75631.7652

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 117.260 N1 N2 H6 107.378
N1 C3 H7 107.895 N1 C3 H8 114.984
N1 C3 H9 109.486 N2 N1 C3 117.260
N2 N1 H5 107.378 N2 C4 H10 107.895
N2 C4 H11 114.984 N2 C4 H12 109.486
C3 N1 H5 110.725 C4 N2 H6 110.725
H7 C3 H8 108.158 H7 C3 H9 107.831
H8 C3 H9 108.266 H10 C4 H11 108.158
H10 C4 H12 107.831 H11 C4 H12 108.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.393      
2 N -0.393      
3 C -0.400      
4 C -0.400      
5 H 0.314      
6 H 0.314      
7 H 0.173      
8 H 0.147      
9 H 0.159      
10 H 0.173      
11 H 0.147      
12 H 0.159      


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 1.747 1.747
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.801 -1.887 0.000
y -1.887 -25.990 0.000
z 0.000 0.000 -29.924
Traceless
 xyz
x 4.156 -1.887 0.000
y -1.887 0.873 0.000
z 0.000 0.000 -5.029
Polar
3z2-r2-10.058
x2-y22.189
xy-1.887
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.188 -0.202 0.000
y -0.202 6.396 0.000
z 0.000 0.000 5.132


<r2> (average value of r2) Å2
<r2> 78.175
(<r2>)1/2 8.842