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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP2=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-188.777451
Energy at 298.15K 
HF Energy-188.121438
Nuclear repulsion energy116.772220
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/aug-cc-pVDZ
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 3625 3514 3.69      
2 A 3513 3405 0.15      
3 A 3195 3097 0.14      
4 A 1741 1687 0.15      
5 A 1624 1574 18.31      
6 A 1325 1284 0.55      
7 A 1278 1239 0.02      
8 A 1038 1006 0.25      
9 A 928 899 71.74      
10 A 796 772 108.38      
11 A 548 531 1.83      
12 A 316 306 1.47      
13 A 248 241 16.90      
14 B 3625 3513 10.75      
15 B 3512 3403 4.63      
16 B 3198 3099 39.39      
17 B 1633 1583 48.66      
18 B 1381 1339 9.94      
19 B 1184 1148 105.69      
20 B 1119 1084 1.21      
21 B 795 771 137.36      
22 B 738 715 191.26      
23 B 338 328 34.50      
24 B 246 239 95.27      

Unscaled Zero Point Vibrational Energy (zpe) 18971.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 18387.2 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/aug-cc-pVDZ
ABC
1.40374 0.13107 0.12181

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.318 0.597 0.039
C2 -0.318 -0.597 0.039
N3 -0.318 1.860 -0.114
N4 0.318 -1.860 -0.114
H5 1.413 0.639 0.042
H6 -1.413 -0.639 0.042
H7 -1.333 1.780 -0.080
H8 1.333 -1.780 -0.080
H9 -0.023 2.525 0.599
H10 0.023 -2.525 0.599

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35331.42272.46191.09542.12722.03522.58752.03623.1853
C21.35332.46191.42272.12721.09542.58752.03523.18532.0362
N31.42272.46193.77422.12452.73251.01883.99741.01854.4555
N42.46191.42273.77422.73252.12453.99741.01884.45551.0185
H51.09542.12722.12452.73253.10132.97672.42312.43523.4999
H62.12721.09542.73252.12453.10132.42312.97673.49992.4352
H72.03522.58751.01883.99742.97672.42314.44811.65324.5643
H82.58752.03523.99741.01882.42312.97674.44814.56431.6532
H92.03623.18531.01854.45552.43523.49991.65324.56435.0497
H103.18532.03624.45551.01853.49992.43524.56431.65325.0497

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.942 C1 C2 H6 120.248
C1 N3 H7 111.879 C1 N3 H9 111.982
C2 C1 N3 124.942 C2 C1 H5 120.248
C2 N4 H8 111.879 C2 N4 H10 111.982
N3 C1 H5 114.442 N4 C2 H6 114.442
H7 N3 H9 108.485 H8 N4 H10 108.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability