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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=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 B2PLYP=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-189.238488
Energy at 298.15K 
HF Energy-188.965761
Nuclear repulsion energy117.793807
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=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 3621 3621 2.70      
2 ?a 3620 3620 10.18      
3 ?a 3531 3531 0.11      
4 ?a 3529 3529 4.78      
5 ?a 3166 3166 40.77      
6 ?a 3164 3164 0.09      
7 ?a 342 342 32.41      
8 ?a 326 326 2.95      
9 ?a 249 249 96.17      
10 ?a 244 244 15.37      
11 A 1749 1749 0.24      
12 A 1651 1651 17.53      
13 A 1342 1342 0.54      
14 A 1284 1284 0.00      
15 A 1035 1035 0.18      
16 A 940 940 68.80      
17 A 782 782 129.66      
18 A 553 553 1.90      
19 B 1658 1658 49.80      
20 B 1399 1399 8.94      
21 B 1173 1173 123.68      
22 B 1130 1130 1.45      
23 B 823 823 60.76      
24 B 729 729 282.96      

Unscaled Zero Point Vibrational Energy (zpe) 19020.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19020.1 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=FULL/daug-cc-pVTZ
ABC
1.45260 0.13292 0.12354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=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 1.846 -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 1.790 -0.066
H8 1.320 -1.790 -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
C11.33371.41172.43961.08282.09862.02972.58562.03073.1765
C21.33372.43961.41172.09861.08282.58562.02973.17652.0307
N31.41172.43963.74562.10112.70721.00963.98671.00944.4341
N42.43961.41173.74562.70722.10113.98671.00964.43411.0094
H51.08282.09862.10112.70723.06172.95382.42462.40453.4963
H62.09861.08282.70722.10113.06172.42462.95383.49632.4045
H72.02972.58561.00963.98672.95382.42464.44871.64734.5541
H82.58562.02973.98671.00962.42462.95384.44874.55411.6473
H92.03073.17651.00944.43412.40453.49631.64734.55415.0524
H103.17652.03074.43411.00943.49632.40454.55411.64735.0524

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.364 C1 C2 H6 120.196
C1 N3 H7 112.860 C1 N3 H9 112.964
C2 C1 N3 125.364 C2 C1 H5 120.196
C2 N4 H8 112.860 C2 N4 H10 112.964
N3 C1 H5 114.116 N4 C2 H6 114.116
H7 N3 H9 109.361 H8 N4 H10 109.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability