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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.004651
Energy at 298.15K 
HF Energy-188.163209
Nuclear repulsion energy117.970425
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 MP2=FULL/6-311+G(3df,2p)
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 3674 3463 4.73      
2 A 3565 3361 0.94      
3 A 3196 3013 0.14      
4 A 1756 1656 0.17      
5 A 1644 1550 20.07      
6 A 1339 1262 0.32      
7 A 1290 1216 0.01      
8 A 1040 981 0.15      
9 A 939 885 70.33      
10 A 776 732 135.06      
11 A 555 523 2.37      
12 A 325 306 3.59      
13 A 243 230 15.88      
14 B 3673 3463 19.45      
15 B 3564 3359 9.77      
16 B 3199 3016 34.93      
17 B 1652 1558 57.03      
18 B 1394 1314 10.16      
19 B 1199 1130 121.25      
20 B 1124 1060 1.08      
21 B 814 767 62.33      
22 B 722 680 273.76      
23 B 340 320 33.04      
24 B 247 233 97.02      

Unscaled Zero Point Vibrational Energy (zpe) 19134.9 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 18038.5 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 MP2=FULL/6-311+G(3df,2p)
ABC
1.44583 0.13368 0.12415

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.589 0.036
C2 -0.314 -0.589 0.036
N3 -0.314 1.841 -0.108
N4 0.314 -1.841 -0.108
H5 1.397 0.628 0.037
H6 -1.397 -0.628 0.037
H7 -1.321 1.780 -0.066
H8 1.321 -1.780 -0.066
H9 0.007 2.521 0.566
H10 -0.007 -2.521 0.566

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33581.40732.43421.08352.10012.02542.57652.02593.1711
C21.33582.43421.40732.10011.08352.57652.02543.17112.0259
N31.40732.43423.73432.10192.69981.00983.97291.00934.4235
N42.43421.40733.73432.69982.10193.97291.00984.42351.0093
H51.08352.10012.10192.69983.06342.95392.41162.40663.4879
H62.10011.08352.69982.10193.06342.41162.95393.48792.4066
H72.02542.57651.00983.97292.95392.41164.43351.64664.5410
H82.57652.02543.97291.00982.41162.95394.43354.54101.6466
H92.02593.17111.00934.42352.40663.48791.64664.54105.0412
H103.17112.02594.42351.00933.48792.40664.54101.64665.0412

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.072 C1 C2 H6 120.110
C1 N3 H7 112.806 C1 N3 H9 112.888
C2 C1 N3 125.072 C2 C1 H5 120.110
C2 N4 H8 112.806 C2 N4 H10 112.888
N3 C1 H5 114.477 N4 C2 H6 114.477
H7 N3 H9 109.269 H8 N4 H10 109.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability