return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

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 CS 1A'
1 2 no C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-3109.827133
Energy at 298.15K 
HF Energy-3109.636407
Nuclear repulsion energy287.888602
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' 3159 3004 7.81 24.09 0.06 0.12
2 A' 3148 2994 2.27 126.93 0.07 0.13
3 A' 1519 1444 0.05 11.65 0.68 0.81
4 A' 1516 1442 6.85 0.08 0.75 0.86
5 A' 1359 1292 2.03 19.93 0.39 0.56
6 A' 1264 1202 55.01 3.13 0.26 0.41
7 A' 1086 1033 0.99 7.56 0.75 0.86
8 A' 754 717 25.83 59.23 0.27 0.42
9 A' 654 622 62.17 13.76 0.22 0.36
10 A' 252 240 0.62 5.69 0.28 0.44
11 A' 192 182 7.77 0.16 0.20 0.33
12 A" 3237 3078 0.59 6.16 0.75 0.86
13 A" 3213 3056 0.44 85.60 0.75 0.86
14 A" 1316 1251 0.08 8.14 0.75 0.86
15 A" 1153 1096 2.72 0.26 0.75 0.86
16 A" 1006 957 0.25 4.45 0.75 0.86
17 A" 786 747 2.77 0.02 0.75 0.86
18 A" 139 132 5.96 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12875.6 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12244.7 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 B2PLYP=FULL/6-31+G**
ABC
0.96226 0.03251 0.03182

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 0.000
C2 1.245 -0.222 0.000
Br3 -1.591 -0.512 0.000
Cl4 2.690 0.859 0.000
H5 -0.065 1.254 0.890
H6 -0.065 1.254 -0.890
H7 1.303 -0.845 0.889
H8 1.303 -0.845 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.51111.96072.69931.08631.08632.16272.1627
C21.51112.85051.80462.16492.16491.08711.0871
Br31.96072.85054.49482.49702.49703.04523.0452
Cl42.69931.80464.49482.92252.92252.37042.3704
H51.08632.16492.49702.92251.78082.50543.0728
H61.08632.16492.49702.92251.78083.07282.5054
H72.16271.08713.04522.37042.50543.07281.7775
H82.16271.08713.04522.37043.07282.50541.7775

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 108.675 C1 C2 H7 111.644
C1 C2 H8 111.644 C2 C1 Br3 109.694
C2 C1 Cl4 39.296 C2 C1 H6 111.873
Br3 C1 H5 106.509 Br3 C1 H6 106.509
Cl4 C2 H7 107.509 Cl4 C2 H8 107.509
H5 C1 H6 110.100 H7 C2 H8 109.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-3109.823385
Energy at 298.15K 
HF Energy-3109.632489
Nuclear repulsion energy302.138177
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 3213 3056 0.72 36.48 0.75 0.86
2 A 3195 3039 1.01 80.78 0.75 0.86
3 A 3137 2983 12.47 154.69 0.04 0.08
4 A 3120 2968 9.18 100.06 0.21 0.34
5 A 1501 1428 0.76 4.80 0.74 0.85
6 A 1496 1423 12.72 13.02 0.73 0.84
7 A 1368 1301 29.30 3.26 0.72 0.84
8 A 1327 1262 61.06 2.97 0.24 0.38
9 A 1240 1180 2.43 11.27 0.70 0.82
10 A 1168 1111 2.12 3.14 0.72 0.84
11 A 1070 1018 1.02 2.54 0.74 0.85
12 A 950 903 9.01 6.98 0.22 0.36
13 A 899 855 20.12 1.46 0.74 0.85
14 A 685 651 23.69 10.57 0.39 0.56
15 A 577 549 13.25 18.05 0.16 0.28
16 A 396 376 7.13 2.16 0.70 0.83
17 A 251 239 1.32 1.87 0.19 0.33
18 A 92 87 0.72 1.11 0.74 0.85

Unscaled Zero Point Vibrational Energy (zpe) 12842.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12212.8 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 B2PLYP=FULL/6-31+G**
ABC
0.30523 0.04737 0.04285

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.022 1.073 -0.400
C2 1.277 0.882 0.419
Br3 -1.382 -0.222 0.036
Cl4 2.223 -0.560 -0.087
H5 -0.407 2.050 -0.183
H6 0.214 0.980 -1.465
H7 1.927 1.745 0.273
H8 1.053 0.775 1.478

Atom - Atom Distances (Å)
  C1 C2 Br3 Cl4 H5 H6 H7 H8
C11.51091.95832.75871.08891.08692.12922.1627
C21.51092.90411.79702.13612.16581.09051.0875
Br31.95832.90413.62292.48202.49923.85633.0000
Cl42.75871.79703.62293.70652.88272.35182.3662
H51.08892.13612.48203.70651.78172.39702.5526
H61.08692.16582.49922.88271.78172.55713.0674
H72.12921.09053.85632.35182.39702.55711.7771
H82.16271.08753.00002.36622.55263.06741.7771

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 112.730 C1 C2 H7 108.791
C1 C2 H8 111.639 C2 C1 Br3 113.037
C2 C1 Cl4 36.929 C2 C1 H6 111.927
Br3 C1 H5 105.495 Br3 C1 H6 106.789
Cl4 C2 H7 106.486 Cl4 C2 H8 107.674
H5 C1 H6 109.939 H7 C2 H8 109.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability