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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-187.964634
Energy at 298.15K 
HF Energy-187.830340
Nuclear repulsion energy116.777592
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 B2PLYP=FULL/3-21G*
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 3582 3582 0.83      
2 A 3473 3473 0.80      
3 A 3175 3175 0.11      
4 A 1740 1740 2.36      
5 A 1722 1722 14.85      
6 A 1372 1372 1.67      
7 A 1293 1293 0.08      
8 A 1030 1030 0.61      
9 A 959 959 79.47      
10 A 648 648 298.84      
11 A 560 560 3.05      
12 A 345 345 0.63      
13 A 253 253 25.26      
14 B 3582 3582 1.30      
15 B 3471 3471 1.60      
16 B 3180 3180 48.59      
17 B 1730 1730 53.32      
18 B 1423 1423 2.36      
19 B 1170 1170 59.03      
20 B 1150 1150 24.88      
21 B 805 805 20.09      
22 B 574 574 421.99      
23 B 342 342 33.56      
24 B 212 212 202.68      

Unscaled Zero Point Vibrational Energy (zpe) 18895.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18895.0 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 B2PLYP=FULL/3-21G*
ABC
1.44345 0.13037 0.12119

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.593 0.040
C2 -0.315 -0.593 0.040
N3 -0.315 1.861 -0.096
N4 0.315 -1.861 -0.096
H5 1.401 0.633 0.049
H6 -1.401 -0.633 0.049
H7 -1.330 1.832 -0.165
H8 1.330 -1.832 -0.165
H9 0.013 2.580 0.545
H10 -0.013 -2.580 0.545

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34311.42232.45781.08632.10892.06952.63692.07223.2298
C21.34312.45781.42232.10891.08632.63692.06953.22982.0722
N31.42232.45783.77492.11442.72421.01754.04341.01744.4972
N42.45781.42233.77492.72422.11444.04341.01754.49721.0174
H51.08632.10892.11442.72423.07422.98952.47582.44143.5457
H62.10891.08632.72422.11443.07422.47582.98953.54572.4414
H72.06952.63691.01754.04342.98952.47584.52761.69324.6589
H82.63692.06954.04341.01752.47582.98954.52764.65891.6932
H92.07223.22981.01744.49722.44143.54571.69324.65895.1604
H103.22982.07224.49721.01743.54572.44144.65891.69325.1604

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.408 C1 C2 H6 120.106
C1 N3 H7 115.025 C1 N3 H9 115.281
C2 C1 N3 125.408 C2 C1 H5 120.106
C2 N4 H8 115.025 C2 N4 H10 115.281
N3 C1 H5 114.224 N4 C2 H6 114.224
H7 N3 H9 112.625 H8 N4 H10 112.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability