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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP3=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-188.429742
Energy at 298.15K 
HF Energy-188.007258
Nuclear repulsion energy116.414227
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 MP3=FULL/6-31G
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 3706 3706 1.96      
2 A 3590 3590 0.61      
3 A 3163 3163 0.17      
4 A 1777 1777 0.38      
5 A 1744 1744 18.78      
6 A 1379 1379 1.28      
7 A 1303 1303 0.49      
8 A 1049 1049 2.11      
9 A 933 933 63.66      
10 A 645 645 385.25      
11 A 558 558 15.44      
12 A 320 320 0.35      
13 A 237 237 38.18      
14 B 3705 3705 2.76      
15 B 3588 3588 3.50      
16 B 3164 3164 59.51      
17 B 1753 1753 78.39      
18 B 1427 1427 3.58      
19 B 1202 1202 93.16      
20 B 1155 1155 3.19      
21 B 777 777 30.08      
22 B 579 579 417.69      
23 B 327 327 10.51      
24 B 185 185 143.37      

Unscaled Zero Point Vibrational Energy (zpe) 19133.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19133.7 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 MP3=FULL/6-31G
ABC
1.42249 0.12970 0.12051

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.595 0.046
C2 -0.321 -0.595 0.046
N3 -0.321 1.863 -0.090
N4 0.321 -1.863 -0.090
H5 1.413 0.643 0.052
H6 -1.413 -0.643 0.052
H7 -1.323 1.842 -0.234
H8 1.323 -1.842 -0.234
H9 -0.017 2.595 0.538
H10 0.017 -2.595 0.538

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35271.42742.46231.09312.13092.08202.65042.08703.2425
C21.35272.46231.42742.13091.09312.65042.08203.24252.0870
N31.42742.46233.78122.12462.73791.01234.05631.01144.5150
N42.46231.42743.78122.73792.12464.05631.01234.51501.0114
H51.09312.13092.12462.73793.10503.00052.50392.46783.5599
H62.13091.09312.73792.12463.10502.50393.00053.55992.4678
H72.08202.65041.01234.05633.00052.50394.53611.69334.6993
H82.65042.08204.05631.01232.50393.00054.53614.69931.6933
H92.08703.24251.01144.51502.46783.55991.69334.69935.1903
H103.24252.08704.51501.01143.55992.46784.69931.69335.1903

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.652 C1 C2 H6 120.841
C1 N3 H7 116.119 C1 N3 H9 116.648
C2 C1 N3 124.652 C2 C1 H5 120.841
C2 N4 H8 116.119 C2 N4 H10 116.648
N3 C1 H5 114.242 N4 C2 H6 114.242
H7 N3 H9 113.589 H8 N4 H10 113.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability