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

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (CS)

Jump to S1C2
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.022285
HF Energy-0.022285
Nuclear repulsion energy91.165710
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 PM3
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' 3091 3010 7.41 82.50 0.15 0.26
2 A' 3063 2983 5.56 85.98 0.16 0.27
3 A' 1407 1371 0.04 55.45 0.47 0.64
4 A' 1358 1323 20.36 1.31 0.53 0.69
5 A' 1304 1270 6.78 311.16 0.37 0.54
6 A' 1195 1164 64.31 4.45 0.36 0.53
7 A' 1145 1115 0.30 20.65 0.70 0.83
8 A' 731 712 1.05 233.78 0.36 0.53
9 A' 691 673 76.85 0.87 0.71 0.83
10 A' 258 251 0.53 18.32 0.38 0.55
11 A' 208 203 3.75 1.47 0.57 0.72
12 A" 3048 2969 12.85 48.95 0.75 0.86
13 A" 3003 2925 5.84 79.90 0.75 0.86
14 A" 1117 1088 0.05 21.60 0.75 0.86
15 A" 1044 1017 0.55 0.59 0.75 0.86
16 A" 961 936 0.00 46.17 0.75 0.86
17 A" 791 771 0.89 0.03 0.75 0.86
18 A" 63 61 3.33 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12237.9 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 11919.7 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 PM3
ABC
0.91174 0.03426 0.03344

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.716 0.000
C2 1.160 -0.223 0.000
Br3 -1.556 -0.464 0.000
Cl4 2.665 0.725 0.000
H5 -0.055 1.356 0.895
H6 -0.055 1.356 -0.895
H7 1.150 -0.878 0.889
H8 1.150 -0.878 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.49281.95282.66501.10081.10082.15782.1578
C21.49282.72631.77892.18412.18411.10461.1046
Br31.95282.72634.38502.52222.52222.87812.8781
Cl42.66501.77894.38502.93232.93232.37842.3784
H51.10082.18412.52222.93231.78912.53823.1024
H61.10082.18412.52222.93231.78913.10242.5382
H72.15781.10462.87812.37842.53823.10241.7789
H82.15781.10462.87812.37843.10242.53821.7789

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 108.771 C1 C2 H7 111.478
C1 C2 H8 111.478 C2 C1 Br3 103.799
C2 C1 Cl4 39.198 C2 C1 H6 113.869
Br3 C1 H5 108.106 Br3 C1 H6 108.106
Cl4 C2 H7 108.889 Cl4 C2 H8 108.889
H5 C1 H6 108.707 H7 C2 H8 107.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.020900
HF Energy-0.020869
Nuclear repulsion energy92.150672
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 PM3
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 3082 3002 9.22 105.59 0.12 0.21
2 A 3052 2973 13.58 101.59 0.11 0.20
3 A 3040 2961 7.66 97.40 0.71 0.83
4 A 2992 2914 9.12 107.41 0.69 0.82
5 A 1397 1361 2.41 52.26 0.37 0.54
6 A 1362 1327 17.66 41.49 0.75 0.86
7 A 1294 1260 37.59 106.26 0.34 0.51
8 A 1222 1190 70.28 22.33 0.56 0.72
9 A 1153 1123 2.74 15.35 0.69 0.81
10 A 1103 1074 1.75 27.23 0.72 0.84
11 A 1059 1032 2.39 15.59 0.73 0.84
12 A 928 903 5.77 42.94 0.48 0.64
13 A 907 883 10.68 17.52 0.75 0.86
14 A 640 623 24.81 62.43 0.72 0.84
15 A 623 607 26.55 72.81 0.14 0.25
16 A 397 386 2.62 7.19 0.75 0.86
17 A 273 266 0.82 4.69 0.48 0.65
18 A 48 47 0.60 6.34 0.75 0.85

Unscaled Zero Point Vibrational Energy (zpe) 12285.0 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 11965.6 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 PM3
ABC
0.30411 0.05096 0.04616

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.041 1.090 -0.440
C2 1.186 0.837 0.483
Br3 -1.326 -0.222 0.035
Cl4 2.147 -0.539 -0.101
H5 -0.406 2.088 -0.310
H6 0.288 0.946 -1.504
H7 1.851 1.718 0.544
H8 0.839 0.617 1.509

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.49211.95332.68391.10131.10152.15432.1587
C21.49212.76291.77712.17392.18241.10581.1055
Br31.95332.76293.49032.51082.51783.75782.7509
Cl42.68391.77713.49033.66872.76182.36612.3750
H51.10132.17392.51083.66871.79162.44112.6498
H61.10152.18242.51782.76181.79162.68913.0804
H72.15431.10583.75782.36612.44112.68911.7798
H82.15871.10552.75092.37502.64983.08041.7798

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 110.060 C1 C2 H7 111.171
C1 C2 H8 111.539 C2 C1 Br3 105.849
C2 C1 Cl4 38.459 C2 C1 H6 113.741
Br3 C1 H5 107.253 Br3 C1 H6 107.734
Cl4 C2 H7 108.046 Cl4 C2 H8 108.708
H5 C1 H6 108.850 H7 C2 H8 107.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability