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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-189.090798
Energy at 298.15K 
HF Energy-189.090798
Nuclear repulsion energy116.617873
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 PBEPBEultrafine/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 3508 3487 1.33      
2 A 3406 3386 0.06      
3 A 3076 3058 0.10      
4 A 1699 1688 0.71      
5 A 1569 1559 16.23      
6 A 1279 1272 0.48      
7 A 1241 1234 0.00      
8 A 1003 997 0.14      
9 A 878 873 68.58      
10 A 754 749 117.49      
11 A 537 534 1.87      
12 A 324 322 2.81      
13 A 237 235 16.81      
14 B 3507 3486 4.09      
15 B 3404 3383 1.27      
16 B 3081 3062 48.50      
17 B 1576 1566 44.84      
18 B 1335 1326 11.69      
19 B 1158 1151 117.10      
20 B 1081 1075 1.69      
21 B 763 758 62.89      
22 B 699 695 289.89      
23 B 341 339 40.26      
24 B 248 246 82.72      

Unscaled Zero Point Vibrational Energy (zpe) 18352.1 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 18240.1 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
1.41208 0.13066 0.12141

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.599 0.047
C2 -0.315 -0.599 0.047
N3 -0.315 1.860 -0.118
N4 0.315 -1.860 -0.118
H5 1.416 0.646 0.049
H6 -1.416 -0.646 0.049
H7 -1.335 1.800 -0.055
H8 1.335 -1.800 -0.055
H9 0.017 2.559 0.553
H10 -0.017 -2.559 0.553

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35351.41882.46471.10202.13202.04262.60862.04563.2154
C21.35352.46471.41882.13201.10202.60862.04263.21542.0456
N31.41882.46473.77282.12012.74271.02414.01461.02424.4793
N42.46471.41883.77282.74272.12014.01461.02414.47931.0242
H51.10202.13202.12012.74273.11262.98442.44952.42213.5468
H62.13201.10202.74272.12013.11262.44952.98443.54682.4221
H72.04262.60861.02414.01462.98442.44954.48121.66544.5935
H82.60862.04264.01461.02412.44952.98444.48124.59351.6654
H92.04563.21541.02424.47932.42213.54681.66544.59355.1176
H103.21542.04564.47931.02423.54682.42214.59351.66545.1176

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.488 C1 C2 H6 120.165
C1 N3 H7 112.471 C1 N3 H9 112.723
C2 C1 N3 125.488 C2 C1 H5 120.165
C2 N4 H8 112.471 C2 N4 H10 112.723
N3 C1 H5 113.909 N4 C2 H6 113.909
H7 N3 H9 108.794 H8 N4 H10 108.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.876      
2 C 0.876      
3 N -0.220      
4 N -0.220      
5 H -0.565      
6 H -0.565      
7 H -0.048      
8 H -0.048      
9 H -0.043      
10 H -0.043      


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 1.926 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.424 -1.459 0.000
y -1.459 -23.305 0.000
z 0.000 0.000 -29.245
Traceless
 xyz
x 4.852 -1.459 0.000
y -1.459 2.030 0.000
z 0.000 0.000 -6.881
Polar
3z2-r2-13.762
x2-y21.881
xy-1.459
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.690 -0.115 0.000
y -0.115 10.932 0.000
z 0.000 0.000 5.559


<r2> (average value of r2) Å2
<r2> 99.540
(<r2>)1/2 9.977