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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: CCSD=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.036072
Energy at 298.15K 
HF Energy-188.163493
Nuclear repulsion energy117.874354
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 CCSD=FULL/6-311+G(3df,2p)
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 3664 3664 2.78      
2 A 3570 3570 0.46      
3 A 3187 3187 0.07      
4 A 1792 1792 0.15      
5 A 1668 1668 21.36      
6 A 1354 1354 0.34      
7 A 1301 1301 0.02      
8 A 1050 1050 0.25      
9 A 955 955 67.08      
10 A 812 812 123.85      
11 A 557 557 1.68      
12 A 317 317 3.17      
13 A 242 242 14.04      
14 B 3663 3663 10.20      
15 B 3569 3569 5.61      
16 B 3189 3189 36.32      
17 B 1676 1676 53.17      
18 B 1411 1411 9.06      
19 B 1194 1194 108.57      
20 B 1141 1141 0.58      
21 B 839 839 91.38      
22 B 753 753 246.31      
23 B 335 335 25.19      
24 B 243 243 98.18      

Unscaled Zero Point Vibrational Energy (zpe) 19240.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19240.0 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 CCSD=FULL/6-311+G(3df,2p)
ABC
1.44816 0.13326 0.12382

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.587 0.028
C2 -0.314 -0.587 0.028
N3 -0.314 1.846 -0.104
N4 0.314 -1.846 -0.104
H5 1.397 0.628 0.028
H6 -1.397 -0.628 0.028
H7 -1.320 1.782 -0.053
H8 1.320 -1.782 -0.053
H9 0.006 2.508 0.587
H10 -0.006 -2.508 0.587

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33131.41282.43661.08372.09842.02552.57502.02423.1613
C21.33132.43661.41282.09841.08372.57502.02553.16132.0242
N31.41282.43663.74492.10372.70421.00913.97901.00884.4191
N42.43661.41283.74492.70422.10373.97901.00914.41911.0088
H51.08372.09842.10372.70423.06312.95222.41302.40413.4809
H62.09841.08372.70422.10373.06312.41302.95223.48092.4041
H72.02552.57501.00913.97902.95222.41304.43471.64124.5321
H82.57502.02553.97901.00912.41302.95224.43474.53211.6412
H92.02423.16131.00884.41912.40413.48091.64124.53215.0159
H103.16132.02424.41911.00883.48092.40414.53211.64125.0159

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.195 C1 C2 H6 120.319
C1 N3 H7 112.434 C1 N3 H9 112.340
C2 C1 N3 125.195 C2 C1 H5 120.319
C2 N4 H8 112.434 C2 N4 H10 112.340
N3 C1 H5 114.197 N4 C2 H6 114.197
H7 N3 H9 108.843 H8 N4 H10 108.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability