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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: MP3=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-189.999552
Energy at 298.15K-190.009808
HF Energy-189.294730
Nuclear repulsion energy131.819756
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 MP3=FULL/6-31+G**
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 3606 3360 0.00      
2 Ag 3119 2905 0.00      
3 Ag 1721 1603 0.00      
4 Ag 1540 1434 0.00      
5 Ag 1458 1358 0.00      
6 Ag 1155 1076 0.00      
7 Ag 1101 1026 0.00      
8 Ag 855 796 0.00      
9 Ag 473 440 0.00      
10 Au 3701 3448 2.60      
11 Au 3185 2967 70.34      
12 Au 1432 1334 0.77      
13 Au 1095 1020 0.62      
14 Au 773 720 0.00      
15 Au 262 244 122.60      
16 Au 152 142 0.23      
17 Bg 3701 3448 0.00      
18 Bg 3159 2943 0.00      
19 Bg 1408 1311 0.00      
20 Bg 1342 1250 0.00      
21 Bg 967 900 0.00      
22 Bg 288 268 0.00      
23 Bu 3606 3359 1.17      
24 Bu 3125 2911 81.04      
25 Bu 1719 1602 67.92      
26 Bu 1557 1450 0.70      
27 Bu 1373 1280 24.41      
28 Bu 1125 1048 22.07      
29 Bu 891 830 402.02      
30 Bu 282 263 22.46      

Unscaled Zero Point Vibrational Energy (zpe) 25083.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 23367.8 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 MP3=FULL/6-31+G**
ABC
0.88298 0.12502 0.11838

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 0.655 0.000
C2 -0.399 -0.655 0.000
N3 -0.399 1.881 0.000
N4 0.399 -1.881 0.000
H5 0.995 -1.926 0.816
H6 0.995 -1.926 -0.816
H7 -0.995 1.926 0.816
H8 -0.995 1.926 -0.816
H9 -1.051 -0.674 -0.875
H10 -1.051 -0.674 0.875
H11 1.051 0.674 -0.875
H12 1.051 0.674 0.875

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53441.46182.53602.77272.77272.05542.05542.15312.15311.09141.0914
C21.53442.53601.46182.05542.05542.77272.77271.09141.09142.15312.1531
N31.46182.53603.84474.13554.13551.01211.01212.77832.77832.07902.0790
N42.53601.46183.84471.01211.01214.13554.13552.07902.07902.77832.7783
H52.77272.05544.13551.01211.63284.33654.63372.93512.39963.10282.6021
H62.77272.05544.13551.01211.63284.63374.33652.39962.93512.60213.1028
H72.05542.77271.01214.13554.33654.63371.63283.10282.60212.93512.3996
H82.05542.77271.01214.13554.63374.33651.63282.60213.10282.39962.9351
H92.15311.09142.77832.07902.93512.39963.10282.60211.74942.49793.0496
H102.15311.09142.77832.07902.39962.93512.60213.10281.74943.04962.4979
H111.09142.15312.07902.77833.10282.60212.93512.39962.49793.04961.7494
H121.09142.15312.07902.77832.60213.10282.39962.93513.04962.49791.7494

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.625 C1 C2 H9 109.000
C1 C2 H10 109.000 C1 N3 H7 111.065
C1 N3 H8 111.065 C2 C1 N3 115.625
C2 C1 H11 109.000 C2 C1 H12 109.000
C2 N4 H5 111.065 C2 N4 H6 111.065
N3 C1 H11 108.153 N3 C1 H12 108.153
N4 C2 H9 108.153 N4 C2 H10 108.153
H5 N4 H6 107.545 H7 N3 H8 107.545
H9 C2 H10 106.534 H11 C1 H12 106.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability