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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-189.281801
Energy at 298.15K 
HF Energy-189.281801
Nuclear repulsion energy117.565384
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/daug-cc-pVDZ
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 3641 3641 2.11      
2 A 3541 3541 0.15      
3 A 3174 3174 0.06      
4 A 1777 1777 0.57      
5 A 1632 1632 18.62      
6 A 1331 1331 0.38      
7 A 1286 1286 0.01      
8 A 1038 1038 0.02      
9 A 934 934 68.16      
10 A 782 782 128.23      
11 A 554 554 2.00      
12 A 325 325 3.85      
13 A 244 244 14.94      
14 B 3641 3641 8.40      
15 B 3539 3539 3.14      
16 B 3178 3178 45.28      
17 B 1640 1640 53.98      
18 B 1387 1387 10.62      
19 B 1194 1194 130.65      
20 B 1121 1121 1.20      
21 B 821 821 57.96      
22 B 725 725 291.91      
23 B 342 342 33.37      
24 B 247 247 95.31      

Unscaled Zero Point Vibrational Energy (zpe) 19046.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19046.6 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/daug-cc-pVDZ
ABC
1.44199 0.13262 0.12320

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.592 0.035
C2 -0.313 -0.592 0.035
N3 -0.313 1.848 -0.109
N4 0.313 -1.848 -0.109
H5 1.404 0.636 0.036
H6 -1.404 -0.636 0.036
H7 -1.322 1.790 -0.044
H8 1.322 -1.790 -0.044
H9 0.022 2.531 0.562
H10 -0.022 -2.531 0.562

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33981.41012.44461.09202.11112.02842.58882.02953.1848
C21.33982.44461.41012.11111.09202.58882.02843.18482.0295
N31.41012.44463.74862.10622.71721.01343.98921.01354.4391
N42.44461.41013.74862.71722.10623.98921.01344.43911.0135
H51.09202.11112.10622.71723.08272.96152.42912.40313.5126
H62.11111.09202.71722.10623.08272.42912.96153.51262.4031
H72.02842.58881.01343.98922.96152.42914.45121.64984.5526
H82.58882.02843.98921.01342.42912.96154.45124.55261.6498
H92.02953.18481.01354.43912.40313.51261.64984.55265.0613
H103.18482.02954.43911.01353.51262.40314.55261.64985.0613

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.469 C1 C2 H6 120.139
C1 N3 H7 112.618 C1 N3 H9 112.706
C2 C1 N3 125.469 C2 C1 H5 120.139
C2 N4 H8 112.618 C2 N4 H10 112.706
N3 C1 H5 114.054 N4 C2 H6 114.054
H7 N3 H9 108.965 H8 N4 H10 108.965
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.428      
2 C 0.428      
3 N 0.318      
4 N 0.318      
5 H -0.726      
6 H -0.726      
7 H -0.053      
8 H -0.053      
9 H 0.032      
10 H 0.032      


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 2.028 2.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.936 -1.337 0.000
y -1.337 -23.328 0.000
z 0.000 0.000 -28.810
Traceless
 xyz
x 5.133 -1.337 0.000
y -1.337 1.545 0.000
z 0.000 0.000 -6.678
Polar
3z2-r2-13.355
x2-y22.392
xy-1.337
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.345 -0.021 0.000
y -0.021 10.195 0.000
z 0.000 0.000 5.296


<r2> (average value of r2) Å2
<r2> 98.064
(<r2>)1/2 9.903