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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-189.191513
Energy at 298.15K 
HF Energy-189.191513
Nuclear repulsion energy117.826344
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 B1B95/6-31G*
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 3632 3448 0.64      
2 A 3530 3351 1.92      
3 A 3186 3024 0.12      
4 A 1806 1714 0.19      
5 A 1682 1597 28.10      
6 A 1350 1282 0.61      
7 A 1307 1241 0.01      
8 A 1058 1004 0.90      
9 A 951 903 56.43      
10 A 843 800 160.68      
11 A 557 528 1.62      
12 A 338 321 0.02      
13 A 257 244 20.41      
14 B 3631 3447 1.94      
15 B 3529 3350 0.06      
16 B 3188 3026 55.40      
17 B 1691 1605 51.54      
18 B 1410 1338 11.01      
19 B 1214 1153 91.16      
20 B 1140 1082 0.96      
21 B 820 778 192.12      
22 B 765 726 275.93      
23 B 351 333 56.95      
24 B 254 241 97.36      

Unscaled Zero Point Vibrational Energy (zpe) 19244.0 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 18268.3 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 B1B95/6-31G*
ABC
1.44575 0.13316 0.12384

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.591 0.036
C2 -0.311 -0.591 0.036
N3 -0.311 1.846 -0.111
N4 0.311 -1.846 -0.111
H5 1.398 0.637 0.037
H6 -1.398 -0.637 0.037
H7 -1.320 1.774 -0.064
H8 1.320 -1.774 -0.064
H9 -0.002 2.511 0.588
H10 0.002 -2.511 0.588

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33571.40792.44101.08802.10432.01782.57382.02223.1658
C21.33572.44101.40792.10431.08802.57382.01783.16582.0222
N31.40792.44103.74302.09822.71411.01313.97081.01364.4234
N42.44101.40793.74302.71412.09823.97081.01314.42341.0136
H51.08802.10432.09822.71413.07232.94842.41482.40363.4873
H62.10431.08802.71412.09823.07232.41482.94843.48732.4036
H72.01782.57381.01313.97082.94842.41484.42361.64484.5322
H82.57382.01783.97081.01312.41482.94844.42364.53221.6448
H92.02223.16581.01364.42342.40363.48731.64484.53225.0220
H103.16582.02224.42341.01363.48732.40364.53221.64485.0220

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.660 C1 C2 H6 120.165
C1 N3 H7 111.883 C1 N3 H9 112.226
C2 C1 N3 125.660 C2 C1 H5 120.165
C2 N4 H8 111.883 C2 N4 H10 112.226
N3 C1 H5 113.808 N4 C2 H6 113.808
H7 N3 H9 108.500 H8 N4 H10 108.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 C -0.026      
3 N -0.754      
4 N -0.754      
5 H 0.139      
6 H 0.139      
7 H 0.320      
8 H 0.320      
9 H 0.321      
10 H 0.321      


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 2.408 2.408
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.232 -1.849 0.000
y -1.849 -22.597 0.000
z 0.000 0.000 -27.612
Traceless
 xyz
x 4.873 -1.849 0.000
y -1.849 1.325 0.000
z 0.000 0.000 -6.198
Polar
3z2-r2-12.396
x2-y22.365
xy-1.849
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.079 0.110 0.000
y 0.110 8.331 0.000
z 0.000 0.000 2.648


<r2> (average value of r2) Å2
<r2> 97.060
(<r2>)1/2 9.852