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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP2=FULL/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 MP2=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-189.012313
Energy at 298.15K 
HF Energy-188.168522
Nuclear repulsion energy118.092836
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/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 3646 3646 5.02      
2 A 3556 3556 0.47      
3 A 3191 3191 0.14      
4 A 1760 1760 0.19      
5 A 1644 1644 17.70      
6 A 1337 1337 0.57      
7 A 1291 1291 0.00      
8 A 1043 1043 0.15      
9 A 941 941 67.76      
10 A 791 791 121.45      
11 A 554 554 2.11      
12 A 325 325 2.31      
13 A 247 247 16.40      
14 B 3645 3645 16.95      
15 B 3554 3554 7.49      
16 B 3187 3187 36.44      
17 B 1652 1652 53.21      
18 B 1394 1394 10.42      
19 B 1197 1197 116.34      
20 B 1128 1128 0.49      
21 B 826 826 71.84      
22 B 736 736 252.77      
23 B 339 339 35.74      
24 B 244 244 96.35      

Unscaled Zero Point Vibrational Energy (zpe) 19112.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19112.8 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/daug-cc-pVTZ
ABC
1.44755 0.13387 0.12443

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.841 -0.108
N4 0.313 -1.841 -0.108
H5 1.394 0.625 0.039
H6 -1.394 -0.625 0.039
H7 -1.320 1.770 -0.082
H8 1.320 -1.770 -0.082
H9 -0.011 2.505 0.588
H10 0.011 -2.505 0.588

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33361.40722.43351.08102.09432.01852.56662.02113.1574
C21.33362.43351.40722.09431.08102.56662.01853.15742.0211
N31.40722.43353.73422.10082.69571.00923.96241.00864.4131
N42.43351.40723.73422.69572.10083.96241.00924.41311.0086
H51.08102.09432.10082.69573.05462.94732.39852.41083.4655
H62.09431.08102.69572.10083.05462.39852.94733.46552.4108
H72.01852.56661.00923.96242.94732.39854.41481.64374.5270
H82.56662.01853.96241.00922.39852.94734.41484.52701.6437
H92.02113.15741.00864.41312.41083.46551.64374.52705.0104
H103.15742.02114.41311.00863.46552.41084.52701.64375.0104

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.184 C1 C2 H6 119.937
C1 N3 H7 112.257 C1 N3 H9 112.517
C2 C1 N3 125.184 C2 C1 H5 119.937
C2 N4 H8 112.257 C2 N4 H10 112.517
N3 C1 H5 114.556 N4 C2 H6 114.556
H7 N3 H9 109.102 H8 N4 H10 109.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability