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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP2/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-188.769026
Energy at 298.15K 
HF Energy-188.122126
Nuclear repulsion energy116.687576
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/daug-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 797 797 122.69      
2 ?a 797 797 107.91      
3 A 3620 3620 3.35      
4 A 3508 3508 0.12      
5 A 3188 3188 0.13      
6 A 1734 1734 0.11      
7 A 1622 1622 18.78      
8 A 1324 1324 0.42      
9 A 1277 1277 0.01      
10 A 1035 1035 0.23      
11 A 928 928 69.44      
12 A 546 546 1.55      
13 A 312 312 2.06      
14 A 244 244 15.90      
15 B 3620 3620 10.72      
16 B 3507 3507 4.34      
17 B 3191 3191 38.95      
18 B 1631 1631 48.12      
19 B 1380 1380 9.84      
20 B 1181 1181 104.31      
21 B 1118 1118 1.10      
22 B 741 741 207.35      
23 B 335 335 32.24      
24 B 244 244 91.40      

Unscaled Zero Point Vibrational Energy (zpe) 18939.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18939.0 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/daug-cc-pVDZ
ABC
1.40200 0.13088 0.12162

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.319 0.597 0.039
C2 -0.319 -0.597 0.039
N3 -0.319 1.861 -0.114
N4 0.319 -1.861 -0.114
H5 1.414 0.639 0.042
H6 -1.414 -0.639 0.042
H7 -1.334 1.780 -0.069
H8 1.334 -1.780 -0.069
H9 -0.018 2.529 0.595
H10 0.018 -2.529 0.595

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35451.42412.46361.09552.12862.03552.58762.03773.1893
C21.35452.46361.42412.12861.09552.58762.03553.18932.0377
N31.42412.46363.77712.12622.73401.01933.99961.01904.4597
N42.46361.42413.77712.73402.12623.99961.01934.45971.0190
H51.09552.12862.12622.73403.10282.97742.42322.43453.5051
H62.12861.09552.73402.12623.10282.42322.97743.50512.4345
H72.03552.58761.01933.99962.97742.42324.44931.65294.5647
H82.58762.03553.99961.01932.42322.97744.44934.56471.6529
H92.03773.18931.01904.45972.43453.50511.65294.56475.0574
H103.18932.03774.45971.01903.50512.43454.56471.65295.0574

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.889 C1 C2 H6 120.272
C1 N3 H7 111.758 C1 N3 H9 111.972
C2 C1 N3 124.889 C2 C1 H5 120.272
C2 N4 H8 111.758 C2 N4 H10 111.972
N3 C1 H5 114.473 N4 C2 H6 114.473
H7 N3 H9 108.367 H8 N4 H10 108.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability