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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-189.062549
Energy at 298.15K 
HF Energy-189.062549
Nuclear repulsion energy116.826710
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/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 3520 3471 0.23      
2 A 3413 3366 0.41      
3 A 3081 3038 0.14      
4 A 1719 1695 0.42      
5 A 1598 1576 21.87      
6 A 1295 1277 0.69      
7 A 1259 1242 0.00      
8 A 1019 1005 0.74      
9 A 897 884 54.22      
10 A 801 790 138.89      
11 A 543 536 1.16      
12 A 339 335 0.01      
13 A 248 245 20.02      
14 B 3518 3470 1.60      
15 B 3410 3363 3.42      
16 B 3083 3041 54.94      
17 B 1605 1583 39.72      
18 B 1354 1336 11.09      
19 B 1177 1160 77.02      
20 B 1097 1082 0.79      
21 B 758 747 217.53      
22 B 728 718 234.70      
23 B 355 351 56.76      
24 B 256 252 81.22      

Unscaled Zero Point Vibrational Energy (zpe) 18535.4 cm-1
Scaled (by 0.9863) 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/6-31G**
ABC
1.41395 0.13107 0.12190

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.599 0.047
C2 -0.313 -0.599 0.047
N3 -0.313 1.859 -0.121
N4 0.313 -1.859 -0.121
H5 1.411 0.646 0.051
H6 -1.411 -0.646 0.051
H7 -1.332 1.782 -0.064
H8 1.332 -1.782 -0.064
H9 -0.003 2.539 0.578
H10 0.003 -2.539 0.578

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35181.41712.46311.09812.12642.02992.59212.03663.1979
C21.35182.46311.41712.12641.09812.59212.02993.19792.0366
N31.41712.46313.76962.11492.73951.02313.99581.02394.4643
N42.46311.41713.76962.73952.11493.99581.02314.46431.0239
H51.09812.12642.11492.73953.10282.97102.43202.42103.5220
H62.12641.09812.73952.11493.10282.43202.97103.52202.4210
H72.02992.59211.02313.99582.97102.43204.45001.65884.5683
H82.59212.02993.99581.02312.43202.97104.45004.56831.6588
H92.03663.19791.02394.46432.42103.52201.65884.56835.0787
H103.19792.03664.46431.02393.52202.42104.56831.65885.0787

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.622 C1 C2 H6 120.080
C1 N3 H7 111.561 C1 N3 H9 112.094
C2 C1 N3 125.622 C2 C1 H5 120.080
C2 N4 H8 111.561 C2 N4 H10 112.094
N3 C1 H5 113.855 N4 C2 H6 113.855
H7 N3 H9 108.263 H8 N4 H10 108.263
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 C 0.011      
3 N -0.593      
4 N -0.593      
5 H 0.084      
6 H 0.084      
7 H 0.247      
8 H 0.247      
9 H 0.251      
10 H 0.251      


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 2.243 2.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.552 -1.939 0.000
y -1.939 -22.045 0.000
z 0.000 0.000 -27.750
Traceless
 xyz
x 4.345 -1.939 0.000
y -1.939 2.106 0.000
z 0.000 0.000 -6.452
Polar
3z2-r2-12.903
x2-y21.493
xy-1.939
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.370 -0.009 0.000
y -0.009 8.973 0.000
z 0.000 0.000 2.791


<r2> (average value of r2) Å2
<r2> 98.388
(<r2>)1/2 9.919