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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=FULL/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-189.237272
Energy at 298.15K 
HF Energy-188.965566
Nuclear repulsion energy117.797568
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/aug-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 3531 3388 0.11      
2 ?a 3530 3387 4.78      
3 ?a 3170 3041 40.69      
4 ?a 3169 3041 0.08      
5 A 3623 3476 2.69      
6 A 1750 1679 0.23      
7 A 1652 1585 17.48      
8 A 1343 1288 0.53      
9 A 1284 1232 0.00      
10 A 1035 993 0.23      
11 A 940 902 69.67      
12 A 781 750 129.03      
13 A 553 531 1.91      
14 A 325 312 2.98      
15 A 245 235 15.39      
16 B 3622 3475 10.27      
17 B 1659 1592 49.65      
18 B 1398 1342 8.96      
19 B 1173 1125 123.79      
20 B 1130 1084 1.49      
21 B 821 788 61.03      
22 B 729 699 283.31      
23 B 341 327 31.75      
24 B 250 240 96.60      

Unscaled Zero Point Vibrational Energy (zpe) 19026.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18254.2 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 B2PLYP=FULL/aug-cc-pVTZ
ABC
1.45258 0.13293 0.12355

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-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 -0.065
H8 1.320 -1.790 -0.065
H9 0.013 2.526 0.564
H10 -0.013 -2.526 0.564

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33361.41182.43941.08252.09852.02982.58552.03063.1765
C21.33362.43941.41182.09851.08252.58552.02983.17652.0306
N31.41182.43943.74542.10072.70721.00963.98661.00934.4341
N42.43941.41183.74542.70722.10073.98661.00964.43411.0093
H51.08252.09852.10072.70723.06152.95362.42472.40403.4967
H62.09851.08252.70722.10073.06152.42472.95363.49672.4040
H72.02982.58551.00963.98662.95362.42474.44861.64754.5540
H82.58552.02983.98661.00962.42472.95364.44864.55401.6475
H92.03063.17651.00934.43412.40403.49671.64754.55405.0527
H103.17652.03064.43411.00933.49672.40404.55401.64755.0527

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.353 C1 C2 H6 120.219
C1 N3 H7 112.862 C1 N3 H9 112.957
C2 C1 N3 125.353 C2 C1 H5 120.219
C2 N4 H8 112.862 C2 N4 H10 112.957
N3 C1 H5 114.100 N4 C2 H6 114.100
H7 N3 H9 109.378 H8 N4 H10 109.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability