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

using model chemistry: B2PLYP=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
1 2 no C2 1A

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-5221.036544
Energy at 298.15K 
HF Energy-5220.845627
Nuclear repulsion energy416.130027
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=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 3155 3000 0.00 137.41 0.06 0.11
2 Ag 1518 1443 0.00 10.27 0.68 0.81
3 Ag 1325 1260 0.00 45.90 0.32 0.48
4 Ag 1086 1033 0.00 11.81 0.68 0.81
5 Ag 680 647 0.00 101.76 0.26 0.41
6 Ag 193 184 0.00 5.34 0.26 0.41
7 Au 3243 3084 0.02 0.00 0.75 0.85
8 Au 1128 1073 3.97 0.00 0.00 0.00
9 Au 776 738 3.54 0.00 0.00 0.00
10 Au 129 123 4.81 0.00 0.00 0.00
11 Bg 3222 3064 0.00 82.58 0.75 0.86
12 Bg 1311 1247 0.00 6.33 0.75 0.86
13 Bg 973 926 0.00 3.93 0.75 0.86
14 Bu 3162 3007 5.56 0.00 0.07 0.13
15 Bu 1513 1438 7.05 0.00 0.00 0.00
16 Bu 1243 1182 69.86 0.00 0.00 0.00
17 Bu 603 573 72.46 0.00 0.00 0.00
18 Bu 176 168 6.98 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 12718.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12094.9 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=FULL/6-31+G**
ABC
0.95065 0.01956 0.01931

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.492 0.571 0.000
C2 -0.492 -0.571 0.000
Br3 -0.492 2.272 0.000
Br4 0.492 -2.272 0.000
H5 1.114 0.577 0.891
H6 1.114 0.577 -0.891
H7 -1.114 -0.577 0.891
H8 -1.114 -0.577 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50791.96572.84321.08621.08622.16602.1660
C21.50792.84321.96572.16602.16601.08621.0862
Br31.96572.84324.64992.49942.49943.04933.0493
Br42.84321.96574.64993.04933.04932.49942.4994
H51.08622.16602.49943.04931.78162.50903.0772
H61.08622.16602.49943.04931.78163.07722.5090
H72.16601.08623.04932.49942.50903.07721.7816
H82.16601.08623.04932.49943.07722.50901.7816

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 109.159 C1 C2 H7 112.207
C1 C2 H8 112.207 C2 C1 Br3 109.159
C2 C1 H5 112.207 C2 C1 H6 112.207
Br3 C1 H5 106.365 Br3 C1 H6 106.365
Br4 C2 H7 106.365 Br4 C2 H8 106.365
H5 C1 H6 110.195 H7 C2 H8 110.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-5221.033578
Energy at 298.15K 
HF Energy-5220.842343
Nuclear repulsion energy449.056480
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=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 A 3204 3047 0.00 89.44 0.75 0.86
2 A 3135 2981 14.41 214.99 0.02 0.05
3 A 1503 1429 0.32 4.79 0.72 0.84
4 A 1342 1276 26.38 5.85 0.33 0.50
5 A 1220 1160 2.19 10.54 0.73 0.84
6 A 1063 1011 0.19 2.63 0.70 0.82
7 A 931 885 7.53 7.36 0.24 0.38
8 A 560 533 9.23 22.26 0.06 0.12
9 A 243 231 1.17 1.63 0.17 0.29
10 A 72 69 0.25 0.75 0.72 0.83
11 B 3215 3058 0.32 25.43 0.75 0.86
12 B 3127 2974 2.25 44.06 0.75 0.86
13 B 1497 1423 12.68 12.90 0.75 0.86
14 B 1311 1246 80.45 1.74 0.75 0.86
15 B 1147 1090 2.93 2.62 0.75 0.86
16 B 875 832 17.74 0.89 0.75 0.86
17 B 594 565 17.80 10.48 0.75 0.86
18 B 370 351 6.60 2.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12703.5 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12081.1 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=FULL/6-31+G**
ABC
0.25619 0.03017 0.02780

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.682 1.171
C2 -0.323 -0.682 1.171
Br3 -0.323 1.817 -0.291
Br4 0.323 -1.817 -0.291
H5 0.061 1.210 2.088
H6 1.403 0.624 1.073
H7 -0.061 -1.210 2.088
H8 -1.403 -0.624 1.073

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50871.96062.89521.08951.08672.13642.1665
C21.50872.89521.96062.13642.16651.08951.0867
Br31.96062.89523.69032.48502.50263.85842.9972
Br42.89521.96063.69033.85842.99722.48502.5026
H51.08952.13642.48503.85841.78242.42232.5564
H61.08672.16652.50262.99721.78242.55643.0715
H72.13641.08953.85842.48502.42232.55641.7824
H82.16651.08672.99722.50262.55643.07151.7824

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 112.480 C1 C2 H7 109.569
C1 C2 H8 112.152 C2 C1 Br3 112.480
C2 C1 H5 109.569 C2 C1 H6 112.152
Br3 C1 H5 105.538 Br3 C1 H6 106.893
Br4 C2 H7 105.538 Br4 C2 H8 106.893
H5 C1 H6 109.972 H7 C2 H8 109.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability