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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: B3LYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-190.551783
Energy at 298.15K-190.561892
Nuclear repulsion energy131.074694
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 B3LYP/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3479 3376 0.00      
2 Ag 3015 2926 0.00      
3 Ag 1644 1595 0.00      
4 Ag 1463 1419 0.00      
5 Ag 1380 1339 0.00      
6 Ag 1104 1071 0.00      
7 Ag 1047 1016 0.00      
8 Ag 802 778 0.00      
9 Ag 455 442 0.00      
10 Au 3560 3455 1.19      
11 Au 3073 2982 68.36      
12 Au 1379 1338 0.98      
13 Au 1064 1032 0.30      
14 Au 752 730 0.52      
15 Au 244 237 91.11      
16 Au 139 135 0.03      
17 Bg 3561 3455 0.00      
18 Bg 3046 2956 0.00      
19 Bg 1357 1317 0.00      
20 Bg 1286 1248 0.00      
21 Bg 936 909 0.00      
22 Bg 278 270 0.00      
23 Bu 3479 3376 3.92      
24 Bu 3023 2933 87.90      
25 Bu 1644 1595 43.99      
26 Bu 1478 1434 1.08      
27 Bu 1312 1273 14.93      
28 Bu 1075 1043 28.44      
29 Bu 835 810 341.31      
30 Bu 275 267 17.87      

Unscaled Zero Point Vibrational Energy (zpe) 24091.0 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 23378.0 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 B3LYP/aug-cc-pVDZ
ABC
0.87419 0.12363 0.11708

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 0.659 0.000
C2 -0.399 -0.659 0.000
N3 -0.399 1.888 0.000
N4 0.399 -1.888 0.000
H5 1.005 -1.928 0.817
H6 1.005 -1.928 -0.817
H7 -1.005 1.928 0.817
H8 -1.005 1.928 -0.817
H9 -1.059 -0.683 -0.882
H10 -1.059 -0.683 0.882
H11 1.059 0.683 -0.882
H12 1.059 0.683 0.882

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54011.46552.54682.77982.77982.06182.06182.16862.16861.10191.1019
C21.54012.54681.46552.06182.06182.77982.77981.10191.10192.16862.1686
N31.46552.54683.85954.14774.14771.01821.01822.79722.79722.08682.0868
N42.54681.46553.85951.01821.01824.14774.14772.08682.08682.79722.7972
H52.77982.06184.14771.01821.63354.34934.64592.94912.41143.11582.6126
H62.77982.06184.14771.01821.63354.64594.34932.41142.94912.61263.1158
H72.06182.77981.01824.14774.34934.64591.63353.11582.61262.94912.4114
H82.06182.77981.01824.14774.64594.34931.63352.61263.11582.41142.9491
H92.16861.10192.79722.08682.94912.41143.11582.61261.76452.51963.0760
H102.16861.10192.79722.08682.41142.94912.61263.11581.76453.07602.5196
H111.10192.16862.08682.79723.11582.61262.94912.41142.51963.07601.7645
H121.10192.16862.08682.79722.61263.11582.41142.94913.07602.51961.7645

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.826 C1 C2 H9 109.207
C1 C2 H10 109.207 C1 N3 H7 110.939
C1 N3 H8 110.939 C2 C1 N3 115.826
C2 C1 H11 109.207 C2 C1 H12 109.207
C2 N4 H5 110.939 C2 N4 H6 110.939
N3 C1 H11 107.901 N3 C1 H12 107.901
N4 C2 H9 107.901 N4 C2 H10 107.901
H5 N4 H6 106.672 H7 N3 H8 106.672
H9 C2 H10 106.389 H11 C1 H12 106.389
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.036      
2 C 1.036      
3 N -0.152      
4 N -0.152      
5 H -0.082      
6 H -0.082      
7 H -0.082      
8 H -0.082      
9 H -0.360      
10 H -0.360      
11 H -0.360      
12 H -0.360      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.029 -4.583 0.000
y -4.583 -36.529 0.000
z 0.000 0.000 -23.925
Traceless
 xyz
x 5.197 -4.583 0.000
y -4.583 -12.052 0.000
z 0.000 0.000 6.854
Polar
3z2-r213.709
x2-y211.499
xy-4.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.131 -0.368 0.000
y -0.368 8.190 0.000
z 0.000 0.000 6.396


<r2> (average value of r2) Å2
<r2> 108.116
(<r2>)1/2 10.398