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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-189.135939
Energy at 298.15K 
HF Energy-188.918565
Nuclear repulsion energy117.063745
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=FULLultrafine/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3612 3612 2.15      
2 A 3510 3510 0.03      
3 A 3173 3173 0.08      
4 A 1748 1748 0.28      
5 A 1633 1633 18.30      
6 A 1331 1331 0.44      
7 A 1278 1278 0.00      
8 A 1033 1033 0.09      
9 A 930 930 68.77      
10 A 788 788 120.42      
11 A 550 550 1.60      
12 A 317 317 2.81      
13 A 243 243 15.21      
14 B 3611 3611 7.50      
15 B 3509 3509 3.03      
16 B 3177 3177 42.76      
17 B 1641 1641 48.43      
18 B 1387 1387 9.23      
19 B 1173 1173 118.76      
20 B 1123 1123 1.57      
21 B 810 810 75.27      
22 B 733 733 268.69      
23 B 338 338 31.04      
24 B 246 246 95.47      

Unscaled Zero Point Vibrational Energy (zpe) 18946.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18946.4 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=FULLultrafine/daug-cc-pVDZ
ABC
1.42512 0.13147 0.12217

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.316 0.594 0.037
C2 -0.316 -0.594 0.037
N3 -0.316 1.857 -0.111
N4 0.316 -1.857 -0.111
H5 1.407 0.639 0.039
H6 -1.407 -0.639 0.039
H7 -1.328 1.792 -0.059
H8 1.328 -1.792 -0.059
H9 0.005 2.534 0.575
H10 -0.005 -2.534 0.575

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34581.41932.45531.09222.11852.03612.59352.03713.1904
C21.34582.45531.41932.11851.09222.59352.03613.19042.0371
N31.41932.45533.76672.11522.72771.01594.00201.01574.4549
N42.45531.41933.76672.72772.11524.00201.01594.45491.0157
H51.09222.11852.11522.72773.09042.97002.43362.41793.5137
H62.11851.09222.72772.11523.09042.43362.97003.51372.4179
H72.03612.59351.01594.00202.97002.43364.46061.65224.5679
H82.59352.03614.00201.01592.43362.97004.46064.56791.6522
H92.03713.19041.01574.45492.41793.51371.65224.56795.0682
H103.19042.03714.45491.01573.51372.41794.56791.65225.0682

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.220 C1 C2 H6 120.318
C1 N3 H7 112.406 C1 N3 H9 112.510
C2 C1 N3 125.220 C2 C1 H5 120.318
C2 N4 H8 112.406 C2 N4 H10 112.510
N3 C1 H5 114.120 N4 C2 H6 114.120
H7 N3 H9 108.823 H8 N4 H10 108.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability