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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=FULLultrafine/daug-cc-pVTZ

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=FULLultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-189.238482
Energy at 298.15K 
HF Energy-188.965756
Nuclear repulsion energy117.793774
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=FULLultrafine/daug-cc-pVTZ
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 3621 3621 2.69      
2 A 3531 3531 0.11      
3 A 3163 3163 0.08      
4 A 1749 1749 0.24      
5 A 1651 1651 17.55      
6 A 1342 1342 0.54      
7 A 1284 1284 0.00      
8 A 1034 1034 0.19      
9 A 938 938 68.93      
10 A 781 781 129.61      
11 A 553 553 1.92      
12 A 326 326 3.07      
13 A 243 243 15.41      
14 B 3621 3621 10.20      
15 B 3529 3529 4.77      
16 B 3165 3165 40.76      
17 B 1658 1658 49.81      
18 B 1399 1399 8.94      
19 B 1173 1173 123.94      
20 B 1130 1130 1.45      
21 B 822 822 61.15      
22 B 727 727 282.10      
23 B 341 341 31.94      
24 B 247 247 96.85      

Unscaled Zero Point Vibrational Energy (zpe) 19014.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19014.1 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 B2PLYP=FULLultrafine/daug-cc-pVTZ
ABC
1.45273 0.13292 0.12353

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.589 0.035
C2 -0.313 -0.589 0.035
N3 -0.313 1.846 -0.107
N4 0.313 -1.846 -0.107
H5 1.395 0.631 0.038
H6 -1.395 -0.631 0.038
H7 -1.320 1.791 -0.066
H8 1.320 -1.791 -0.066
H9 0.012 2.526 0.565
H10 -0.012 -2.526 0.565

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33371.41172.43961.08282.09852.02982.58592.03073.1766
C21.33372.43961.41172.09851.08282.58592.02983.17662.0307
N31.41172.43963.74562.10102.70721.00963.98691.00944.4342
N42.43961.41173.74562.70722.10103.98691.00964.43421.0094
H51.08282.09852.10102.70723.06162.95392.42482.40443.4964
H62.09851.08282.70722.10103.06162.42482.95393.49642.4044
H72.02982.58591.00963.98692.95392.42484.44901.64744.5545
H82.58592.02983.98691.00962.42482.95394.44904.55451.6474
H92.03073.17661.00944.43422.40443.49641.64744.55455.0527
H103.17662.03074.43421.00943.49642.40444.55451.64745.0527

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.371 C1 C2 H6 120.192
C1 N3 H7 112.872 C1 N3 H9 112.968
C2 C1 N3 125.371 C2 C1 H5 120.192
C2 N4 H8 112.872 C2 N4 H10 112.968
N3 C1 H5 114.113 N4 C2 H6 114.113
H7 N3 H9 109.368 H8 N4 H10 109.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability