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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-189.317911
Energy at 298.15K 
HF Energy-189.317911
Nuclear repulsion energy117.196775
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 B3LYPultrafine/6-31+G**
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 3622 3487 2.18      
2 A 3520 3389 0.73      
3 A 3152 3035 0.05      
4 A 1752 1686 0.85      
5 A 1649 1587 25.13      
6 A 1335 1286 0.66      
7 A 1274 1227 0.07      
8 A 1029 990 0.05      
9 A 924 889 77.05      
10 A 767 738 179.35      
11 A 551 531 3.02      
12 A 323 311 3.21      
13 A 243 234 20.52      
14 B 3622 3487 7.74      
15 B 3518 3387 3.44      
16 B 3156 3039 52.66      
17 B 1657 1595 67.21      
18 B 1389 1338 7.97      
19 B 1170 1126 138.32      
20 B 1119 1077 2.95      
21 B 800 770 64.60      
22 B 711 684 329.91      
23 B 340 327 33.97      
24 B 247 238 114.56      

Unscaled Zero Point Vibrational Energy (zpe) 18934.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 18228.0 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 B3LYPultrafine/6-31+G**
ABC
1.43844 0.13156 0.12229

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.593 0.041
C2 -0.314 -0.593 0.041
N3 -0.314 1.854 -0.109
N4 0.314 -1.854 -0.109
H5 1.402 0.641 0.042
H6 -1.402 -0.641 0.042
H7 -1.327 1.805 -0.086
H8 1.327 -1.805 -0.086
H9 0.010 2.547 0.558
H10 -0.010 -2.547 0.558

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34231.41652.45231.08932.11382.04352.60682.04373.1992
C21.34232.45231.41652.11381.08932.60682.04353.19922.0437
N31.41652.45233.76142.10662.72691.01454.01041.01474.4621
N42.45231.41653.76142.72692.10664.01041.01454.46211.0147
H51.08932.11382.10662.72693.08342.96932.45112.41563.5253
H62.11381.08932.72692.10663.08342.45112.96933.52532.4156
H72.04352.60681.01454.01042.96932.45114.48061.65944.5926
H82.60682.04354.01041.01452.45112.96934.48064.59261.6594
H92.04373.19921.01474.46212.41563.52531.65944.59265.0945
H103.19922.04374.46211.01473.52532.41564.59261.65945.0945

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.450 C1 C2 H6 120.396
C1 N3 H7 113.379 C1 N3 H9 113.382
C2 C1 N3 125.450 C2 C1 H5 120.396
C2 N4 H8 113.379 C2 N4 H10 113.382
N3 C1 H5 113.785 N4 C2 H6 113.785
H7 N3 H9 109.718 H8 N4 H10 109.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.088      
2 C -0.088      
3 N -0.582      
4 N -0.582      
5 H 0.110      
6 H 0.110      
7 H 0.277      
8 H 0.277      
9 H 0.284      
10 H 0.284      


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 2.171 2.171
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.957 -1.713 0.000
y -1.713 -23.429 0.000
z 0.000 0.000 -29.392
Traceless
 xyz
x 5.454 -1.713 0.000
y -1.713 1.745 0.000
z 0.000 0.000 -7.199
Polar
3z2-r2-14.398
x2-y22.472
xy-1.713
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.750 0.222 0.000
y 0.222 9.552 0.000
z 0.000 0.000 4.738


<r2> (average value of r2) Å2
<r2> 98.879
(<r2>)1/2 9.944