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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3PW91/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-189.305451
Energy at 298.15K 
HF Energy-189.305451
Nuclear repulsion energy117.868630
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 B3PW91/daug-cc-pVTZ
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 3622 3622 2.19      
2 A 3529 3529 0.14      
3 A 3141 3141 0.06      
4 A 1755 1755 0.51      
5 A 1638 1638 17.64      
6 A 1332 1332 0.46      
7 A 1280 1280 0.01      
8 A 1030 1030 0.16      
9 A 933 933 67.79      
10 A 767 767 136.70      
11 A 552 552 2.28      
12 A 330 330 4.18      
13 A 241 241 14.94      
14 B 3622 3622 9.58      
15 B 3527 3527 3.90      
16 B 3146 3146 43.86      
17 B 1644 1644 52.86      
18 B 1389 1389 9.85      
19 B 1180 1180 132.95      
20 B 1119 1119 1.41      
21 B 818 818 48.70      
22 B 711 711 302.50      
23 B 344 344 33.85      
24 B 246 246 94.08      

Unscaled Zero Point Vibrational Energy (zpe) 18946.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18946.7 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 B3PW91/daug-cc-pVTZ
ABC
1.45784 0.13314 0.12368

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.590 0.036
C2 -0.311 -0.590 0.036
N3 -0.311 1.844 -0.107
N4 0.311 -1.844 -0.107
H5 1.397 0.633 0.037
H6 -1.397 -0.633 0.037
H7 -1.319 1.796 -0.048
H8 1.319 -1.796 -0.048
H9 0.032 2.534 0.546
H10 -0.032 -2.534 0.546

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33361.40752.43771.08662.10062.02932.59062.03003.1841
C21.33362.43771.40752.10061.08662.59062.02933.18412.0300
N31.40752.43773.74002.09912.70791.01033.98831.01044.4355
N42.43771.40753.74002.70792.09913.98831.01034.43551.0104
H51.08662.10062.09912.70793.06722.95552.43092.39573.5116
H62.10061.08662.70792.09913.06722.43092.95553.51162.3957
H72.02932.59061.01033.98832.95552.43094.45561.65014.5560
H82.59062.02933.98831.01032.43092.95554.45564.55601.6501
H92.03003.18411.01044.43552.39573.51161.65014.55605.0693
H103.18412.03004.43551.01043.51162.39574.55601.65015.0693

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.554 C1 C2 H6 120.098
C1 N3 H7 113.113 C1 N3 H9 113.164
C2 C1 N3 125.554 C2 C1 H5 120.098
C2 N4 H8 113.113 C2 N4 H10 113.164
N3 C1 H5 114.012 N4 C2 H6 114.012
H7 N3 H9 109.494 H8 N4 H10 109.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.225      
2 C -0.225      
3 N -0.517      
4 N -0.517      
5 H 0.555      
6 H 0.555      
7 H 0.044      
8 H 0.044      
9 H 0.142      
10 H 0.142      


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 1.969 1.969
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.882 -1.320 0.000
y -1.320 -22.972 0.000
z 0.000 0.000 -28.691
Traceless
 xyz
x 4.949 -1.320 0.000
y -1.320 1.815 0.000
z 0.000 0.000 -6.764
Polar
3z2-r2-13.528
x2-y22.090
xy-1.320
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.320 -0.042 0.000
y -0.042 10.217 0.000
z 0.000 0.000 5.269


<r2> (average value of r2) Å2
<r2> 97.652
(<r2>)1/2 9.882