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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-189.379305
Energy at 298.15K 
HF Energy-189.379305
Nuclear repulsion energy117.511583
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 TPSSh/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 3577 3452 1.27      
2 A 3484 3363 0.00      
3 A 3135 3026 0.05      
4 A 1737 1676 0.32      
5 A 1645 1588 18.10      
6 A 1335 1288 0.45      
7 A 1276 1231 0.01      
8 A 1024 988 0.32      
9 A 934 901 69.45      
10 A 790 762 120.84      
11 A 544 525 1.71      
12 A 330 319 2.84      
13 A 244 235 15.32      
14 B 3576 3452 4.77      
15 B 3483 3361 1.45      
16 B 3138 3029 46.15      
17 B 1652 1594 43.92      
18 B 1391 1342 10.01      
19 B 1161 1121 116.36      
20 B 1118 1079 2.50      
21 B 802 774 71.71      
22 B 734 708 299.06      
23 B 345 333 43.00      
24 B 246 237 80.77      

Unscaled Zero Point Vibrational Energy (zpe) 18848.5 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 18192.6 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 TPSSh/aug-cc-pVTZ
ABC
1.44362 0.13238 0.12302

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.590 0.040
C2 -0.313 -0.590 0.040
N3 -0.313 1.850 -0.112
N4 0.313 -1.850 -0.112
H5 1.399 0.638 0.041
H6 -1.399 -0.638 0.041
H7 -1.323 1.794 -0.047
H8 1.323 -1.794 -0.047
H9 0.023 2.537 0.552
H10 -0.023 -2.537 0.552

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33671.41472.44491.08642.10682.03252.59042.03363.1870
C21.33672.44491.41472.10681.08642.59042.03253.18702.0336
N31.41472.44493.75202.10292.71831.01313.99421.01344.4463
N42.44491.41473.75202.71832.10293.99421.01314.44631.0134
H51.08642.10682.10292.71833.07422.95782.43422.40003.5161
H62.10681.08642.71832.10293.07422.43422.95783.51612.4000
H72.03252.59041.01313.99422.95782.43424.45711.65034.5610
H82.59042.03253.99421.01312.43422.95784.45714.56101.6503
H92.03363.18701.01344.44632.40003.51611.65034.56105.0745
H103.18702.03364.44631.01343.51612.40004.56101.65035.0745

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.375 C1 C2 H6 120.441
C1 N3 H7 112.643 C1 N3 H9 112.722
C2 C1 N3 125.375 C2 C1 H5 120.441
C2 N4 H8 112.643 C2 N4 H10 112.722
N3 C1 H5 113.803 N4 C2 H6 113.803
H7 N3 H9 109.049 H8 N4 H10 109.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.031      
2 C 0.031      
3 N -0.372      
4 N -0.372      
5 H 0.283      
6 H 0.283      
7 H 0.048      
8 H 0.048      
9 H 0.010      
10 H 0.010      


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 1.975 1.975
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 6.394 -0.060 0.000
y -0.060 10.378 0.000
z 0.000 0.000 5.313


<r2> (average value of r2) Å2
<r2> 98.181
(<r2>)1/2 9.909