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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at G3B3
 hartrees
Energy at 0K-189.146286
Energy at 298.15K-189.140131
HF Energy-189.287251
Nuclear repulsion energy117.243967
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 B3LYP/6-31G*
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 3574 3432 0.14      
2 A 3476 3338 0.72      
3 A 3155 3029 0.12      
4 A 1775 1704 0.07      
5 A 1678 1611 25.73      
6 A 1349 1296 0.75      
7 A 1297 1246 0.00      
8 A 1049 1007 1.33      
9 A 945 907 54.23      
10 A 844 810 150.50      
11 A 556 534 1.05      
12 A 336 323 0.00      
13 A 255 245 19.56      
14 B 3573 3431 1.20      
15 B 3474 3336 1.56      
16 B 3157 3032 56.72      
17 B 1686 1619 43.69      
18 B 1410 1354 9.35      
19 B 1187 1140 79.89      
20 B 1142 1097 1.01      
21 B 812 780 237.27      
22 B 767 736 234.71      
23 B 354 340 51.08      
24 B 259 249 95.43      

Unscaled Zero Point Vibrational Energy (zpe) 19053.2 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 18296.8 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 B3LYP/6-31G*
ABC
1.43461 0.13170 0.12252

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.593 0.038
C2 -0.312 -0.593 0.038
N3 -0.312 1.856 -0.113
N4 0.312 -1.856 -0.113
H5 1.401 0.641 0.039
H6 -1.401 -0.641 0.039
H7 -1.326 1.786 -0.063
H8 1.326 -1.786 -0.063
H9 -0.002 2.524 0.589
H10 0.002 -2.524 0.589

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34061.41702.45371.09022.11222.02902.58802.03293.1809
C21.34062.45371.41702.11221.09022.58802.02903.18092.0329
N31.41702.45373.76412.10602.72891.01703.99391.01774.4473
N42.45371.41703.76412.72892.10603.99391.01704.44731.0177
H51.09022.11222.10602.72893.08262.95942.43102.41193.5047
H62.11221.09022.72892.10603.08262.43102.95943.50472.4119
H72.02902.58801.01703.99392.95942.43104.44881.64994.5572
H82.58802.02903.99391.01702.43102.95944.44884.55721.6499
H92.03293.18091.01774.44732.41193.50471.64994.55725.0486
H103.18092.03294.44731.01773.50472.41194.55721.64995.0486

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.643 C1 C2 H6 120.332
C1 N3 H7 111.893 C1 N3 H9 112.160
C2 C1 N3 125.643 C2 C1 H5 120.332
C2 N4 H8 111.893 C2 N4 H10 112.160
N3 C1 H5 113.652 N4 C2 H6 113.652
H7 N3 H9 108.385 H8 N4 H10 108.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 C -0.002      
3 N -0.725      
4 N -0.725      
5 H 0.115      
6 H 0.115      
7 H 0.305      
8 H 0.305      
9 H 0.307      
10 H 0.307      


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 2.383 2.383
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 98.046
(<r2>)1/2 9.902