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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-189.065528
Energy at 298.15K 
HF Energy-189.065528
Nuclear repulsion energy116.588773
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 PBEPBE/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 3472 3452 0.28      
2 A 3373 3353 0.54      
3 A 3064 3046 0.03      
4 A 1713 1703 0.50      
5 A 1571 1562 16.76      
6 A 1278 1270 0.53      
7 A 1256 1248 0.01      
8 A 1018 1012 0.57      
9 A 885 880 64.05      
10 A 812 807 94.68      
11 A 542 539 0.82      
12 A 338 336 0.50      
13 A 251 249 17.19      
14 B 3470 3450 1.38      
15 B 3370 3350 5.23      
16 B 3066 3048 53.56      
17 B 1578 1569 31.13      
18 B 1338 1331 13.77      
19 B 1176 1169 84.49      
20 B 1093 1087 1.05      
21 B 766 761 299.03      
22 B 736 731 120.13      
23 B 356 354 52.37      
24 B 256 255 72.64      

Unscaled Zero Point Vibrational Energy (zpe) 18388.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18281.4 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 PBEPBE/cc-pVDZ
ABC
1.40557 0.13068 0.12155

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.601 0.045
C2 -0.313 -0.601 0.045
N3 -0.313 1.862 -0.124
N4 0.313 -1.862 -0.124
H5 1.417 0.646 0.050
H6 -1.417 -0.646 0.050
H7 -1.335 1.783 -0.038
H8 1.335 -1.783 -0.038
H9 0.003 2.537 0.586
H10 -0.003 -2.537 0.586

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35481.41752.46831.10542.13242.02972.59532.03463.2003
C21.35482.46831.41752.13241.10542.59532.02973.20032.0346
N31.41752.46833.77562.12162.74561.02874.00101.02954.4668
N42.46831.41753.77562.74562.12164.00101.02874.46681.0295
H51.10542.13242.12162.74563.11502.97912.43222.42183.5267
H62.13241.10542.74562.12163.11502.43222.97913.52672.4218
H72.02972.59531.02874.00102.97912.43224.45511.65754.5642
H82.59532.02974.00101.02872.43222.97914.45514.56421.6575
H92.03463.20031.02954.46682.42183.52671.65754.56425.0749
H103.20032.03464.46681.02953.52672.42184.56421.65755.0749

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.819 C1 C2 H6 119.835
C1 N3 H7 111.144 C1 N3 H9 111.508
C2 C1 N3 125.819 C2 C1 H5 119.835
C2 N4 H8 111.144 C2 N4 H10 111.508
N3 C1 H5 113.908 N4 C2 H6 113.908
H7 N3 H9 107.286 H8 N4 H10 107.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 C -0.045      
3 N -0.112      
4 N -0.112      
5 H -0.008      
6 H -0.008      
7 H 0.075      
8 H 0.075      
9 H 0.091      
10 H 0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.056 2.056
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.002 -1.830 0.000
y -1.830 -21.832 0.000
z 0.000 0.000 -27.737
Traceless
 xyz
x 3.782 -1.830 0.000
y -1.830 2.538 0.000
z 0.000 0.000 -6.320
Polar
3z2-r2-12.640
x2-y20.830
xy-1.830
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.636 -0.009 0.000
y -0.009 9.176 0.000
z 0.000 0.000 3.084


<r2> (average value of r2) Å2
<r2> 98.677
(<r2>)1/2 9.934