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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-188.888712
Energy at 298.15K 
HF Energy-188.113008
Nuclear repulsion energy117.916303
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 MP3=FULL/6-31G(2df,p)
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 3701 3701 2.17      
2 A 3607 3607 3.11      
3 A 3236 3236 0.05      
4 A 1818 1818 0.00      
5 A 1689 1689 24.51      
6 A 1369 1369 0.71      
7 A 1321 1321 0.25      
8 A 1064 1064 1.66      
9 A 982 982 53.01      
10 A 864 864 119.96      
11 A 564 564 0.76      
12 A 326 326 0.36      
13 A 258 258 15.24      
14 B 3700 3700 6.52      
15 B 3606 3606 3.17      
16 B 3237 3237 36.06      
17 B 1697 1697 48.06      
18 B 1430 1430 7.99      
19 B 1214 1214 69.68      
20 B 1156 1156 0.36      
21 B 861 861 170.41      
22 B 791 791 229.12      
23 B 346 346 38.73      
24 B 257 257 88.14      

Unscaled Zero Point Vibrational Energy (zpe) 19546.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19546.4 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 MP3=FULL/6-31G(2df,p)
ABC
1.44873 0.13322 0.12389

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.587 0.024
C2 -0.313 -0.587 0.024
N3 -0.313 1.849 -0.106
N4 0.313 -1.849 -0.106
H5 1.395 0.629 0.024
H6 -1.395 -0.629 0.024
H7 -1.316 1.770 -0.039
H8 1.316 -1.770 -0.039
H9 -0.002 2.489 0.609
H10 0.002 -2.489 0.609

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.32981.41422.43901.08332.09642.01382.56202.01443.1461
C21.32982.43901.41422.09641.08332.56202.01383.14612.0144
N31.41422.43903.74982.10232.70721.00903.96841.00884.4072
N42.43901.41423.74982.70722.10233.96841.00904.40721.0088
H51.08332.09642.10232.70723.06072.94182.40092.39803.4649
H62.09641.08332.70722.10233.06072.40092.94183.46492.3980
H72.01382.56201.00903.96842.94182.40094.41071.63244.5044
H82.56202.01383.96841.00902.40092.94184.41074.50441.6324
H92.01443.14611.00884.40722.39803.46491.63244.50444.9776
H103.14612.01444.40721.00883.46492.39804.50441.63244.9776

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.428 C1 C2 H6 120.287
C1 N3 H7 111.319 C1 N3 H9 111.379
C2 C1 N3 125.428 C2 C1 H5 120.287
C2 N4 H8 111.319 C2 N4 H10 111.379
N3 C1 H5 114.000 N4 C2 H6 114.000
H7 N3 H9 107.994 H8 N4 H10 107.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability