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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: MP2=FULL/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2=FULL/6-311G**
 hartrees
Energy at 0K-190.077605
Energy at 298.15K-190.087924
HF Energy-189.326569
Nuclear repulsion energy131.806336
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 MP2=FULL/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 Ag 3534 3352 0.00      
2 Ag 3070 2912 0.00      
3 Ag 1661 1576 0.00      
4 Ag 1500 1423 0.00      
5 Ag 1422 1349 0.00      
6 Ag 1154 1095 0.00      
7 Ag 1104 1047 0.00      
8 Ag 882 837 0.00      
9 Ag 466 442 0.00      
10 Au 3625 3439 0.26      
11 Au 3140 2979 66.05      
12 Au 1419 1346 2.99      
13 Au 1088 1032 0.53      
14 Au 776 736 0.07      
15 Au 282 267 107.41      
16 Au 152 144 0.61      
17 Bg 3626 3440 0.00      
18 Bg 3114 2954 0.00      
19 Bg 1391 1320 0.00      
20 Bg 1322 1254 0.00      
21 Bg 964 914 0.00      
22 Bg 316 300 0.00      
23 Bu 3533 3351 1.02      
24 Bu 3077 2919 80.94      
25 Bu 1660 1574 47.95      
26 Bu 1517 1439 1.00      
27 Bu 1346 1277 24.43      
28 Bu 1119 1061 8.96      
29 Bu 925 877 382.42      
30 Bu 272 258 20.24      

Unscaled Zero Point Vibrational Energy (zpe) 24727.2 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 23456.2 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 MP2=FULL/6-311G**
ABC
0.87810 0.12540 0.11861

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.398 0.654 0.000
C2 -0.398 -0.654 0.000
N3 -0.398 1.880 0.000
N4 0.398 -1.880 0.000
H5 1.011 -1.877 0.810
H6 1.011 -1.877 -0.810
H7 -1.011 1.877 0.810
H8 -1.011 1.877 -0.810
H9 -1.054 -0.671 -0.879
H10 -1.054 -0.671 0.879
H11 1.054 0.671 -0.879
H12 1.054 0.671 0.879

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53201.46182.53432.72712.72712.03382.03382.15332.15331.09641.0964
C21.53202.53431.46182.03382.03382.72712.72711.09641.09642.15332.1533
N31.46182.53433.84354.09334.09331.01551.01552.77652.77652.08392.0839
N42.53431.46183.84351.01551.01554.09334.09332.08392.08392.77652.7765
H52.72712.03384.09331.01551.61934.26364.56072.92732.39243.05652.5488
H62.72712.03384.09331.01551.61934.56074.26362.39242.92732.54883.0565
H72.03382.72711.01554.09334.26364.56071.61933.05652.54882.92732.3924
H82.03382.72711.01554.09334.56074.26361.61932.54883.05652.39242.9273
H92.15331.09642.77652.08392.92732.39243.05652.54881.75752.49843.0546
H102.15331.09642.77652.08392.39242.92732.54883.05651.75753.05462.4984
H111.09642.15332.08392.77653.05652.54882.92732.39242.49843.05461.7575
H121.09642.15332.08392.77652.54883.05652.39242.92733.05462.49841.7575

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.655 C1 C2 H9 108.888
C1 C2 H10 108.888 C1 N3 H7 109.035
C1 N3 H8 109.035 C2 C1 N3 115.655
C2 C1 H11 108.888 C2 C1 H12 108.888
C2 N4 H5 109.035 C2 N4 H6 109.035
N3 C1 H11 108.249 N3 C1 H12 108.249
N4 C2 H9 108.249 N4 C2 H10 108.249
H5 N4 H6 105.734 H7 N3 H8 105.734
H9 C2 H10 106.537 H11 C1 H12 106.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability