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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3PW91/aug-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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-189.258238
Energy at 298.15K 
HF Energy-189.258238
Nuclear repulsion energy117.353522
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/aug-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 3618 3490 1.98      
2 A 3517 3393 0.10      
3 A 3157 3045 0.07      
4 A 1762 1699 0.60      
5 A 1621 1564 17.97      
6 A 1323 1276 0.47      
7 A 1277 1232 0.00      
8 A 1031 994 0.03      
9 A 926 893 68.53      
10 A 773 746 129.73      
11 A 551 532 2.05      
12 A 326 314 3.84      
13 A 242 233 15.17      
14 B 3618 3490 7.44      
15 B 3515 3391 2.62      
16 B 3160 3049 46.34      
17 B 1629 1571 52.15      
18 B 1379 1330 10.43      
19 B 1185 1143 130.27      
20 B 1114 1074 1.32      
21 B 812 783 55.48      
22 B 716 691 296.68      
23 B 342 330 34.32      
24 B 248 239 95.18      

Unscaled Zero Point Vibrational Energy (zpe) 18920.5 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 18250.7 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/aug-cc-pVDZ
ABC
1.43824 0.13212 0.12273

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.594 0.036
C2 -0.313 -0.594 0.036
N3 -0.313 1.851 -0.110
N4 0.313 -1.851 -0.110
H5 1.406 0.639 0.037
H6 -1.406 -0.639 0.037
H7 -1.325 1.796 -0.045
H8 1.325 -1.796 -0.045
H9 0.025 2.539 0.557
H10 -0.025 -2.539 0.557

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34241.41202.44931.09422.11542.03312.59652.03363.1933
C21.34242.44931.41202.11541.09422.59652.03313.19332.0336
N31.41202.44933.75472.10872.72331.01513.99851.01544.4493
N42.44931.41203.75472.72332.10873.99851.01514.44931.0154
H51.09422.11542.10872.72333.08902.96702.43772.40553.5236
H62.11541.09422.72332.10873.08902.43772.96703.52362.4055
H72.03312.59651.01513.99852.96702.43774.46341.65374.5651
H82.59652.03313.99851.01512.43772.96704.46344.56511.6537
H92.03363.19331.01544.44932.40553.52361.65374.56515.0776
H103.19332.03364.44931.01543.52362.40554.56511.65375.0776

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.525 C1 C2 H6 120.148
C1 N3 H7 112.761 C1 N3 H9 112.792
C2 C1 N3 125.525 C2 C1 H5 120.148
C2 N4 H8 112.761 C2 N4 H10 112.792
N3 C1 H5 113.972 N4 C2 H6 113.972
H7 N3 H9 109.062 H8 N4 H10 109.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.817      
2 C 0.817      
3 N -0.256      
4 N -0.256      
5 H -0.489      
6 H -0.489      
7 H -0.039      
8 H -0.039      
9 H -0.033      
10 H -0.033      


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 2.007 2.007
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.926 -1.367 0.000
y -1.367 -23.187 0.000
z 0.000 0.000 -28.828
Traceless
 xyz
x 5.082 -1.367 0.000
y -1.367 1.689 0.000
z 0.000 0.000 -6.771
Polar
3z2-r2-13.542
x2-y22.262
xy-1.367
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.311 0.006 0.000
y 0.006 10.192 0.000
z 0.000 0.000 5.251


<r2> (average value of r2) Å2
<r2> 98.369
(<r2>)1/2 9.918