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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-189.254826
Energy at 298.15K 
HF Energy-189.254826
Nuclear repulsion energy117.265049
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 B97D3/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 3525 3476 0.63      
2 A 3428 3380 0.03      
3 A 3079 3036 0.02      
4 A 1702 1679 0.15      
5 A 1615 1592 17.78      
6 A 1309 1291 0.65      
7 A 1257 1240 0.01      
8 A 1015 1001 1.17      
9 A 899 886 70.46      
10 A 798 787 113.44      
11 A 545 537 0.85      
12 A 330 326 1.47      
13 A 241 238 16.42      
14 B 3525 3475 1.59      
15 B 3426 3378 1.46      
16 B 3084 3041 58.35      
17 B 1621 1598 38.36      
18 B 1368 1349 9.55      
19 B 1146 1130 89.22      
20 B 1111 1096 1.57      
21 B 775 764 159.10      
22 B 734 724 263.69      
23 B 351 346 37.72      
24 B 251 248 83.83      

Unscaled Zero Point Vibrational Energy (zpe) 18566.9 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 18306.9 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 B97D3/cc-pVTZ
ABC
1.43466 0.13176 0.12253

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.594 0.043
C2 -0.313 -0.594 0.043
N3 -0.313 1.854 -0.117
N4 0.313 -1.854 -0.117
H5 1.402 0.639 0.046
H6 -1.402 -0.639 0.046
H7 -1.324 1.788 -0.050
H8 1.324 -1.788 -0.050
H9 0.013 2.535 0.563
H10 -0.013 -2.535 0.563

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34221.41662.45341.09012.11172.02822.58912.03203.1882
C21.34222.45341.41662.11171.09012.58912.02823.18822.0320
N31.41662.45343.76142.10862.72541.01503.99401.01544.4520
N42.45341.41663.76142.72542.10863.99401.01504.45201.0154
H51.09012.11172.10862.72543.08122.95972.42992.40713.5128
H62.11171.09012.72542.10863.08122.42992.95973.51282.4071
H72.02822.58911.01503.99402.95972.42994.44951.64874.5590
H82.58912.02823.99401.01502.42992.95974.44954.55901.6487
H92.03203.18821.01544.45202.40713.51281.64874.55905.0702
H103.18822.03204.45201.01543.51282.40714.55901.64875.0702

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.545 C1 C2 H6 120.150
C1 N3 H7 111.983 C1 N3 H9 112.289
C2 C1 N3 125.545 C2 C1 H5 120.150
C2 N4 H8 111.983 C2 N4 H10 112.289
N3 C1 H5 113.896 N4 C2 H6 113.896
H7 N3 H9 108.587 H8 N4 H10 108.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.091      
2 C -0.091      
3 N -0.239      
4 N -0.239      
5 H 0.077      
6 H 0.077      
7 H 0.123      
8 H 0.123      
9 H 0.129      
10 H 0.129      


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 1.956 1.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.964 -1.562 0.000
y -1.562 -22.499 0.000
z 0.000 0.000 -28.176
Traceless
 xyz
x 4.374 -1.562 0.000
y -1.562 2.071 0.000
z 0.000 0.000 -6.444
Polar
3z2-r2-12.889
x2-y21.536
xy-1.562
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.991 -0.004 0.000
y -0.004 9.680 0.000
z 0.000 0.000 4.135


<r2> (average value of r2) Å2
<r2> 98.192
(<r2>)1/2 9.909