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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: CCD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/Def2TZVPP
 hartrees
Energy at 0K-188.949625
Energy at 298.15K 
HF Energy-188.171890
Nuclear repulsion energy117.765042
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 CCD/Def2TZVPP
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 3656 3656 2.50      
2 A 3563 3563 1.05      
3 A 3190 3190 0.04      
4 A 1795 1795 0.22      
5 A 1669 1669 21.76      
6 A 1358 1358 0.54      
7 A 1304 1304 0.06      
8 A 1055 1055 0.75      
9 A 959 959 68.05      
10 A 839 839 115.16      
11 A 557 557 1.07      
12 A 315 315 2.26      
13 A 242 242 14.63      
14 B 3656 3656 7.11      
15 B 3562 3562 4.26      
16 B 3191 3191 37.72      
17 B 1677 1677 45.97      
18 B 1415 1415 9.27      
19 B 1191 1191 88.07      
20 B 1148 1148 0.26      
21 B 844 844 151.51      
22 B 770 770 217.73      
23 B 335 335 27.09      
24 B 243 243 95.98      

Unscaled Zero Point Vibrational Energy (zpe) 19266.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19266.7 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 CCD/Def2TZVPP
ABC
1.44288 0.13294 0.12359

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.587 0.027
C2 -0.314 -0.587 0.027
N3 -0.314 1.850 -0.106
N4 0.314 -1.850 -0.106
H5 1.397 0.626 0.026
H6 -1.397 -0.626 0.026
H7 -1.319 1.773 -0.047
H8 1.319 -1.773 -0.047
H9 -0.004 2.498 0.602
H10 0.004 -2.498 0.602

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33221.41682.44071.08352.09802.01972.56642.02023.1534
C21.33222.44071.41682.09801.08352.56642.01973.15342.0202
N31.41682.44073.75282.10822.70561.00883.97471.00874.4163
N42.44071.41683.75282.70562.10823.97471.00884.41631.0087
H51.08352.09802.10822.70563.06212.94912.40192.40763.4686
H62.09801.08352.70562.10823.06212.40192.94913.46862.4076
H72.01972.56641.00883.97472.94912.40194.41981.63554.5180
H82.56642.01973.97471.00882.40192.94914.41984.51801.6355
H92.02023.15341.00874.41632.40763.46861.63554.51804.9955
H103.15342.02024.41631.00873.46862.40764.51801.63554.9955

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.188 C1 C2 H6 120.216
C1 N3 H7 111.637 C1 N3 H9 111.698
C2 C1 N3 125.188 C2 C1 H5 120.216
C2 N4 H8 111.637 C2 N4 H10 111.698
N3 C1 H5 114.297 N4 C2 H6 114.297
H7 N3 H9 108.325 H8 N4 H10 108.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability