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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-189.137664
Energy at 298.15K 
HF Energy-189.137664
Nuclear repulsion energy117.104462
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 PBEPBEultrafine/aug-cc-pVTZ
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 3513 3473 1.50      
2 A 3419 3381 0.02      
3 A 3062 3028 0.09      
4 A 1692 1673 0.58      
5 A 1587 1569 15.90      
6 A 1288 1273 0.46      
7 A 1244 1230 0.01      
8 A 1002 991 0.46      
9 A 883 873 68.07      
10 A 750 741 122.94      
11 A 538 532 2.05      
12 A 327 324 3.08      
13 A 235 232 16.57      
14 B 3512 3472 5.56      
15 B 3417 3379 1.35      
16 B 3067 3032 46.00      
17 B 1593 1575 45.22      
18 B 1344 1329 10.74      
19 B 1152 1139 118.49      
20 B 1087 1075 1.83      
21 B 766 758 59.16      
22 B 696 688 293.09      
23 B 342 338 38.91      
24 B 246 243 82.02      

Unscaled Zero Point Vibrational Energy (zpe) 18379.5 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 18173.7 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
1.43066 0.13162 0.12230

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.595 0.046
C2 -0.313 -0.595 0.046
N3 -0.313 1.853 -0.116
N4 0.313 -1.853 -0.116
H5 1.407 0.640 0.048
H6 -1.407 -0.640 0.048
H7 -1.329 1.799 -0.057
H8 1.329 -1.799 -0.057
H9 0.024 2.554 0.544
H10 -0.024 -2.554 0.544

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34481.41472.45371.09442.11752.03902.60282.04193.2059
C21.34482.45371.41472.11751.09442.60282.03903.20592.0419
N31.41472.45373.75912.11082.72771.01944.00501.01944.4656
N42.45371.41473.75912.72772.11084.00501.01944.46561.0194
H51.09442.11752.11082.72773.09102.97312.44272.41253.5347
H62.11751.09442.72772.11083.09102.44272.97313.53472.4125
H72.03902.60281.01944.00502.97312.44274.47371.66184.5840
H82.60282.03904.00501.01942.44272.97314.47374.58401.6618
H92.04193.20591.01944.46562.41253.53471.66184.58405.1080
H103.20592.04194.46561.01943.53472.41254.58401.66185.1080

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.518 C1 C2 H6 120.122
C1 N3 H7 112.787 C1 N3 H9 113.039
C2 C1 N3 125.518 C2 C1 H5 120.122
C2 N4 H8 112.787 C2 N4 H10 113.039
N3 C1 H5 113.942 N4 C2 H6 113.942
H7 N3 H9 109.188 H8 N4 H10 109.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 C -0.160      
3 N -0.326      
4 N -0.326      
5 H 0.374      
6 H 0.374      
7 H 0.064      
8 H 0.064      
9 H 0.048      
10 H 0.048      


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 1.896 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.374 -1.412 0.000
y -1.412 -23.112 0.000
z 0.000 0.000 -29.125
Traceless
 xyz
x 4.744 -1.412 0.000
y -1.412 2.138 0.000
z 0.000 0.000 -6.882
Polar
3z2-r2-13.763
x2-y21.738
xy-1.412
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.692 -0.150 0.000
y -0.150 10.919 0.000
z 0.000 0.000 5.562


<r2> (average value of r2) Å2
<r2> 98.854
(<r2>)1/2 9.943