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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP/6-31G

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/6-31G
 hartrees
Energy at 0K-188.952167
Energy at 298.15K 
HF Energy-188.818334
Nuclear repulsion energy116.948770
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/6-31G
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 3721 3721 2.68      
2 A 3597 3597 0.58      
3 A 3183 3183 0.23      
4 A 1764 1764 0.57      
5 A 1721 1721 13.62      
6 A 1374 1374 1.49      
7 A 1298 1298 0.96      
8 A 1031 1031 0.76      
9 A 945 945 67.53      
10 A 579 579 134.80      
11 A 531 531 328.03      
12 A 342 342 4.59      
13 A 239 239 35.22      
14 B 3721 3721 5.88      
15 B 3595 3595 10.22      
16 B 3186 3186 63.30      
17 B 1725 1725 86.10      
18 B 1421 1421 5.38      
19 B 1208 1208 147.97      
20 B 1133 1133 5.81      
21 B 799 799 25.72      
22 B 485 485 321.67      
23 B 331 331 10.13      
24 B 191 191 185.20      

Unscaled Zero Point Vibrational Energy (zpe) 19059.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19059.0 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 B2PLYP/6-31G
ABC
1.45091 0.13074 0.12138

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.318 0.595 0.049
C2 -0.318 -0.595 0.049
N3 -0.318 1.852 -0.085
N4 0.318 -1.852 -0.085
H5 1.405 0.641 0.060
H6 -1.405 -0.641 0.060
H7 -1.315 1.857 -0.238
H8 1.315 -1.857 -0.238
H9 0.026 2.616 0.477
H10 -0.026 -2.616 0.477

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34971.41462.45141.08822.12052.08332.66342.08593.2581
C21.34972.45141.41462.12051.08822.66342.08333.25812.0859
N31.41462.45143.75862.11042.72421.00914.05591.00854.5131
N42.45141.41463.75862.72422.11044.05591.00914.51311.0085
H51.08822.12052.11042.72423.08852.99412.51802.44433.5822
H62.12051.08822.72422.11043.08852.51802.99413.58222.4443
H72.08332.66341.00914.05592.99412.51804.55151.69844.7100
H82.66342.08334.05591.00912.51802.99414.55154.71001.6984
H92.08593.25811.00854.51312.44433.58221.69844.71005.2326
H103.25812.08594.51311.00853.58222.44434.71001.69845.2326

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.934 C1 C2 H6 120.488
C1 N3 H7 117.560 C1 N3 H9 117.845
C2 C1 N3 124.934 C2 C1 H5 120.488
C2 N4 H8 117.560 C2 N4 H10 117.845
N3 C1 H5 114.335 N4 C2 H6 114.335
H7 N3 H9 114.659 H8 N4 H10 114.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 C 0.048      
3 N -0.767      
4 N -0.767      
5 H 0.118      
6 H 0.118      
7 H 0.301      
8 H 0.301      
9 H 0.299      
10 H 0.299      


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 1.795 1.795
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.587 -2.182 0.000
y -2.182 -20.577 0.000
z 0.000 0.000 -28.483
Traceless
 xyz
x 3.943 -2.182 0.000
y -2.182 3.958 0.000
z 0.000 0.000 -7.901
Polar
3z2-r2-15.802
x2-y2-0.010
xy-2.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.854 0.166 0.000
y 0.166 8.316 0.000
z 0.000 0.000 2.148


<r2> (average value of r2) Å2
<r2> 98.934
(<r2>)1/2 9.947