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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-151.061876
Energy at 298.15K 
HF Energy-151.061876
Nuclear repulsion energy83.251800
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 HSEh1PBE/6-31+G**
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/6-31+G**
ABC
1.19653 0.30200 0.27470

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.546
N2 0.000 1.256 -0.184
N3 0.000 -1.256 -0.184
H4 0.879 0.000 1.199
H5 -0.879 0.000 1.199
H6 0.821 1.349 -0.773
H7 -0.821 1.349 -0.773
H8 -0.821 -1.349 -0.773
H9 0.821 -1.349 -0.773

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45301.45301.09481.09482.05732.05732.05732.0573
N21.45302.51292.06472.06471.01431.01432.79442.7944
N31.45302.51292.06472.06472.79442.79441.01431.0143
H41.09482.06472.06471.75762.38972.93182.93182.3897
H51.09482.06472.06471.75762.93182.38972.38972.9318
H62.05731.01432.79442.38972.93181.64123.15802.6980
H72.05731.01432.79442.93182.38971.64122.69803.1580
H82.05732.79441.01432.93182.38973.15802.69801.6412
H92.05732.79441.01432.38972.93182.69803.15801.6412

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 111.748 C1 N2 H7 111.748
C1 N3 H8 111.748 C1 N3 H9 111.748
N2 C1 N3 119.700 N2 C1 H4 107.430
N2 C1 H5 107.430 N3 C1 H4 107.430
N3 C1 H5 107.430 H4 C1 H5 106.780
H6 N2 H7 108.003 H8 N3 H9 108.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 N -0.629      
3 N -0.629      
4 H 0.162      
5 H 0.162      
6 H 0.293      
7 H 0.293      
8 H 0.293      
9 H 0.293      


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 -1.986 1.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.799 0.000 0.000
y 0.000 -26.865 0.000
z 0.000 0.000 -18.724
Traceless
 xyz
x 5.995 0.000 0.000
y 0.000 -9.103 0.000
z 0.000 0.000 3.108
Polar
3z2-r26.217
x2-y210.065
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.252 0.000 0.000
y 0.000 5.430 0.000
z 0.000 0.000 4.559


<r2> (average value of r2) Å2
<r2> 54.133
(<r2>)1/2 7.357