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All results from a given calculation for CH2BrCH2Cl (1-bromo-2-chloroethane)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
1 2 no C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-3110.528135
Energy at 298.15K 
HF Energy-3109.964405
Nuclear repulsion energy289.547865
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3148 2991 12.57 3.39 0.09 0.16
2 A' 3140 2984 0.68 155.80 0.08 0.15
3 A' 1503 1428 0.16 14.41 0.72 0.84
4 A' 1500 1425 4.53 0.80 0.72 0.84
5 A' 1375 1306 3.75 10.21 0.65 0.79
6 A' 1273 1210 49.17 2.49 0.55 0.71
7 A' 1097 1043 1.11 8.44 0.75 0.86
8 A' 799 759 24.76 39.24 0.29 0.45
9 A' 688 654 39.77 12.09 0.25 0.40
10 A' 259 246 0.70 3.89 0.38 0.55
11 A' 202 192 6.37 0.13 0.30 0.47
12 A" 3227 3066 2.77 1.29 0.75 0.86
13 A" 3206 3046 0.31 94.16 0.75 0.86
14 A" 1325 1259 0.22 5.97 0.75 0.86
15 A" 1177 1118 4.45 0.07 0.75 0.86
16 A" 1014 963 0.25 5.80 0.75 0.86
17 A" 787 748 3.43 0.04 0.75 0.86
18 A" 126 119 4.90 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12922.2 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 12278.7 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 MP2/6-311G**
ABC
0.96288 0.03294 0.03224

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.638 0.000
C2 1.237 -0.235 0.000
Br3 -1.587 -0.485 0.000
Cl4 2.686 0.809 0.000
H5 -0.044 1.263 0.891
H6 -0.044 1.263 -0.891
H7 1.275 -0.861 0.891
H8 1.275 -0.861 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.51391.94402.69151.08931.08932.16012.1601
C21.51392.83531.78592.16262.16261.08941.0894
Br31.94402.83534.46482.49622.49623.02143.0214
Cl42.69151.78594.46482.90692.90692.36072.3607
H51.08932.16262.49622.90691.78202.50003.0699
H61.08932.16262.49622.90691.78203.06992.5000
H72.16011.08943.02142.36072.50003.06991.7813
H82.16011.08943.02142.36073.06992.50001.7813

picture of 1-bromo-2-chloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 109.024 C1 C2 H7 111.098
C1 C2 H8 111.098 C2 C1 Br3 109.533
C2 C1 Cl4 38.852 C2 C1 H6 111.311
Br3 C1 H5 107.384 Br3 C1 H6 107.384
Cl4 C2 H7 107.912 Cl4 C2 H8 107.912
H5 C1 H6 109.762 H7 C2 H8 109.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-3110.525280
Energy at 298.15K 
HF Energy-3109.960914
Nuclear repulsion energy305.962700
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3205 3045 3.03 34.24 0.75 0.86
2 A 3191 3032 1.65 92.16 0.75 0.85
3 A 3129 2973 15.97 166.99 0.03 0.07
4 A 3119 2964 8.93 77.22 0.27 0.43
5 A 1488 1414 1.05 5.85 0.68 0.81
6 A 1479 1405 8.75 12.52 0.73 0.85
7 A 1383 1314 26.42 2.51 0.72 0.83
8 A 1338 1272 43.58 1.45 0.61 0.76
9 A 1246 1184 4.83 12.56 0.74 0.85
10 A 1181 1123 3.08 5.19 0.73 0.85
11 A 1077 1023 1.19 2.71 0.75 0.86
12 A 970 922 7.86 5.98 0.44 0.61
13 A 901 856 19.19 2.20 0.74 0.85
14 A 722 686 15.13 8.97 0.41 0.59
15 A 610 580 8.38 13.96 0.20 0.34
16 A 400 380 5.32 2.24 0.71 0.83
17 A 254 241 0.89 1.33 0.57 0.73
18 A 110 104 0.43 1.76 0.73 0.85

Unscaled Zero Point Vibrational Energy (zpe) 12900.9 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 12258.5 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 MP2/6-311G**
ABC
0.29644 0.04993 0.04464

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 1.100 -0.382
C2 1.286 0.896 0.402
Br3 -1.347 -0.224 0.036
Cl4 2.152 -0.578 -0.087
H5 -0.419 2.073 -0.132
H6 0.191 1.043 -1.455
H7 1.952 1.742 0.212
H8 1.082 0.826 1.470

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.51411.93952.73881.09171.08982.13202.1594
C21.51412.88511.77802.13962.16091.09251.0900
Br31.93952.88513.51932.48322.48893.84403.0103
Cl42.73881.77803.51933.69312.88852.34732.3539
H51.09172.13962.48323.69311.78442.41802.5250
H61.08982.16092.48892.88851.78442.52323.0658
H72.13201.09253.84402.34732.41802.52321.7826
H82.15941.09003.01032.35392.52503.06581.7826

picture of 1-bromo-2-chloroethane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 112.352 C1 C2 H7 108.675
C1 C2 H8 110.991 C2 C1 Br3 112.734
C2 C1 Cl4 36.898 C2 C1 H6 111.126
Br3 C1 H5 106.640 Br3 C1 H6 107.131
Cl4 C2 H7 107.295 Cl4 C2 H8 107.906
H5 C1 H6 109.763 H7 C2 H8 109.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability