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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-189.125373
Energy at 298.15K 
HF Energy-188.922009
Nuclear repulsion energy117.426049
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 B2PLYP/6-311G*
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 3624 3624 0.29      
2 A 3530 3530 0.47      
3 A 3160 3160 0.02      
4 A 1765 1765 1.31      
5 A 1708 1708 31.14      
6 A 1352 1352 0.74      
7 A 1304 1304 0.02      
8 A 1053 1053 1.98      
9 A 933 933 89.67      
10 A 856 856 142.05      
11 A 556 556 1.13      
12 A 328 328 0.67      
13 A 252 252 20.33      
14 B 3624 3624 0.63      
15 B 3528 3528 0.67      
16 B 3163 3163 57.78      
17 B 1721 1721 59.46      
18 B 1419 1419 6.32      
19 B 1186 1186 79.82      
20 B 1154 1154 0.52      
21 B 818 818 360.74      
22 B 770 770 122.94      
23 B 347 347 38.28      
24 B 248 248 107.21      

Unscaled Zero Point Vibrational Energy (zpe) 19199.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19199.2 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 B2PLYP/6-311G*
ABC
1.43978 0.13197 0.12279

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.592 0.040
C2 -0.312 -0.592 0.040
N3 -0.312 1.854 -0.113
N4 0.312 -1.854 -0.113
H5 1.399 0.638 0.040
H6 -1.399 -0.638 0.040
H7 -1.321 1.784 -0.078
H8 1.321 -1.784 -0.078
H9 -0.004 2.520 0.585
H10 0.004 -2.520 0.585

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33951.41632.45161.08782.10802.02522.58432.02763.1745
C21.33952.45161.41632.10801.08782.58432.02523.17452.0276
N31.41632.45163.76082.10502.72341.01193.98811.01194.4407
N42.45161.41633.76082.72342.10503.98811.01194.44071.0119
H51.08782.10802.10502.72343.07562.95392.42622.40993.4950
H62.10801.08782.72342.10503.07562.42622.95393.49502.4099
H72.02522.58431.01193.98812.95392.42624.43951.64734.5517
H82.58432.02523.98811.01192.42622.95394.43954.55171.6473
H92.02763.17451.01194.44072.40993.49501.64734.55175.0398
H103.17452.02764.44071.01193.49502.40994.55171.64735.0398

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.627 C1 C2 H6 120.206
C1 N3 H7 111.956 C1 N3 H9 112.168
C2 C1 N3 125.627 C2 C1 H5 120.206
C2 N4 H8 111.956 C2 N4 H10 112.168
N3 C1 H5 113.771 N4 C2 H6 113.771
H7 N3 H9 108.974 H8 N4 H10 108.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C -0.079      
3 N -0.754      
4 N -0.754      
5 H 0.193      
6 H 0.193      
7 H 0.321      
8 H 0.321      
9 H 0.320      
10 H 0.320      


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 2.359 2.359
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.674 -1.811 0.000
y -1.811 -23.172 0.000
z 0.000 0.000 -28.517
Traceless
 xyz
x 5.170 -1.811 0.000
y -1.811 1.423 0.000
z 0.000 0.000 -6.593
Polar
3z2-r2-13.186
x2-y22.498
xy-1.811
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.323 0.167 0.000
y 0.167 8.563 0.000
z 0.000 0.000 3.247


<r2> (average value of r2) Å2
<r2> 98.132
(<r2>)1/2 9.906