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All results from a given calculation for CH2BrCH2Br (Ethane, 1,2-dibromo-)

using model chemistry: AM1

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at AM1
 hartrees
Energy at 0K 
Energy at 298.15K-0.012737
HF Energy-0.012737
Nuclear repulsion energy91.583233
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 AM1
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 3089 2945 0.00 270.39 0.17 0.28
2 Ag 1387 1322 0.00 52.10 0.59 0.75
3 Ag 1271 1212 0.00 166.75 0.43 0.60
4 Ag 1240 1182 0.00 14.22 0.47 0.64
5 Ag 710 677 0.00 97.24 0.41 0.58
6 Ag 202 192 0.00 7.82 0.43 0.60
7 Au 3048 2906 51.42 0.00 0.00 0.00
8 Au 1033 985 1.01 0.00 0.00 0.00
9 Au 738 704 4.37 0.00 0.00 0.00
10 Au 72 68 3.28 0.00 0.00 0.00
11 Bg 3025 2884 0.00 225.93 0.75 0.86
12 Bg 1185 1130 0.00 28.89 0.75 0.86
13 Bg 873 832 0.00 42.23 0.75 0.86
14 Bu 3106 2961 26.12 0.00 0.00 0.00
15 Bu 1377 1313 13.74 0.00 0.00 0.00
16 Bu 1203 1147 18.87 0.00 0.00 0.00
17 Bu 682 650 56.22 0.00 0.00 0.00
18 Bu 188 180 3.38 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 12213.1 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 11645.2 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 AM1
ABC
0.97856 0.01970 0.01946

See section I.F.4 to change rotational constant units
Geometric Data calculated at AM1

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.470 0.584 0.000
C2 -0.470 -0.584 0.000
Br3 -0.470 2.268 0.000
Br4 0.470 -2.268 0.000
H5 1.117 0.587 0.909
H6 1.117 0.587 -0.909
H7 -1.117 -0.587 0.909
H8 -1.117 -0.587 -0.909

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50021.92812.85221.11591.11592.17202.1720
C21.50022.85221.92812.17202.17201.11591.1159
Br31.92812.85224.63192.48432.48433.06473.0647
Br42.85221.92814.63193.06473.06472.48432.4843
H51.11592.17202.48433.06471.81872.52333.1104
H61.11592.17202.48433.06471.81873.11042.5233
H72.17201.11593.06472.48432.52333.11041.8187
H82.17201.11593.06472.48433.11042.52331.8187

picture of Ethane, 1,2-dibromo- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 111.998 C1 C2 H7 111.395
C1 C2 H8 111.395 C2 C1 Br3 111.998
C2 C1 H5 111.395 C2 C1 H6 111.395
Br3 C1 H5 106.319 Br3 C1 H6 106.319
Br4 C2 H7 106.319 Br4 C2 H8 106.319
H5 C1 H6 109.152 H7 C2 H8 109.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at AM1
 hartrees
Energy at 0K 
Energy at 298.15K-0.012100
HF Energy-0.012132
Nuclear repulsion energy92.681951
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 AM1
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 3089 2945 16.50 270.24 0.05 0.10
2 A 3025 2884 9.50 212.31 0.74 0.85
3 A 1382 1318 3.01 28.28 0.43 0.60
4 A 1274 1214 10.92 41.91 0.31 0.47
5 A 1217 1161 3.45 15.84 0.50 0.67
6 A 1112 1060 3.07 38.81 0.75 0.86
7 A 870 829 3.16 30.77 0.68 0.81
8 A 606 577 13.88 37.08 0.17 0.28
9 A 205 195 0.54 1.65 0.51 0.67
10 A 55 52 0.25 2.87 0.74 0.85
11 B 3097 2953 19.49 48.67 0.75 0.86
12 B 3034 2893 30.68 114.59 0.75 0.86
13 B 1379 1315 7.97 55.70 0.75 0.86
14 B 1251 1193 28.21 20.24 0.75 0.86
15 B 1052 1003 3.65 21.86 0.75 0.86
16 B 817 779 10.45 7.02 0.75 0.86
17 B 639 609 12.45 33.54 0.75 0.86
18 B 370 352 3.61 7.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12234.6 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 11665.7 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 AM1
ABC
0.24894 0.03218 0.02928

See section I.F.4 to change rotational constant units
Geometric Data calculated at AM1

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.279 0.696 1.199
C2 -0.279 -0.696 1.199
Br3 -0.279 1.762 -0.300
Br4 0.279 -1.762 -0.300
H5 -0.065 1.236 2.116
H6 1.395 0.686 1.185
H7 0.065 -1.236 2.116
H8 -1.395 -0.686 1.185

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50031.92222.87951.11731.11622.14892.1714
C21.50032.87951.92222.14892.17141.11731.1162
Br31.92222.87953.56812.48142.48263.86503.0732
Br42.87951.92223.56813.86503.07322.48142.4826
H51.11732.14892.48143.86501.81642.47452.5161
H61.11622.17142.48263.07321.81642.51613.1097
H72.14891.11733.86502.48142.47452.51611.8164
H82.17141.11623.07322.48262.51613.10971.8164

picture of Ethane, 1,2-dibromo- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 113.997 C1 C2 H7 109.484
C1 C2 H8 111.325 C2 C1 Br3 113.997
C2 C1 H5 109.484 C2 C1 H6 111.325
Br3 C1 H5 106.419 Br3 C1 H6 106.553
Br4 C2 H7 106.419 Br4 C2 H8 106.553
H5 C1 H6 108.830 H7 C2 H8 108.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability