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All results from a given calculation for C6H5Br (bromobenzene)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-2789.780628
Energy at 298.15K-2789.788579
Nuclear repulsion energy427.587294
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=FULL/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3229 3061 5.61      
2 A1 3215 3048 6.87      
3 A1 3194 3028 0.01      
4 A1 1582 1500 16.11      
5 A1 1522 1443 38.09      
6 A1 1245 1180 0.08      
7 A1 1103 1046 34.06      
8 A1 1058 1003 8.64      
9 A1 1015 962 0.85      
10 A1 708 671 13.91      
11 A1 325 308 1.54      
12 A2 928 879 0.00      
13 A2 834 791 0.00      
14 A2 417 395 0.00      
15 B1 931 882 0.04      
16 B1 880 834 1.14      
17 B1 734 695 98.27      
18 B1 658 623 0.83      
19 B1 460 436 7.48      
20 B1 171 163 0.49      
21 B2 3223 3055 5.49      
22 B2 3203 3036 5.52      
23 B2 1583 1501 3.53      
24 B2 1491 1413 8.32      
25 B2 1377 1305 2.07      
26 B2 1310 1242 0.07      
27 B2 1240 1176 0.12      
28 B2 1097 1040 2.42      
29 B2 651 617 0.21      
30 B2 247 235 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19814.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 18783.7 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=FULL/3-21G*
ABC
0.18665 0.03250 0.02768

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.818
C2 0.000 0.000 -0.100
C3 0.000 1.224 -0.786
C4 0.000 -1.224 -0.786
C5 0.000 1.217 -2.192
C6 0.000 -1.217 -2.192
C7 0.000 0.000 -2.897
H8 0.000 2.158 -0.232
H9 0.000 -2.158 -0.232
H10 0.000 2.161 -2.731
H11 0.000 -2.161 -2.731
H12 0.000 0.000 -3.984

Atom - Atom Distances (Å)
  Br1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Br11.91762.87732.87734.19084.19084.71522.97632.97635.03625.03625.8015
C21.91761.40351.40352.42092.42092.79772.16182.16183.40493.40493.8839
C32.87731.40352.44831.40632.81742.44051.08553.42702.15893.90403.4239
C42.87731.40352.44832.81741.40632.44053.42701.08553.90402.15893.4239
C54.19082.42091.40632.81742.43441.40662.17423.90291.08653.42062.1657
C64.19082.42092.81741.40632.43441.40663.90292.17423.42061.08652.1657
C74.71522.79772.44052.44051.40661.40663.42923.42922.16702.16701.0862
H82.97632.16181.08553.42702.17423.90293.42924.31552.49914.98944.3278
H92.97632.16183.42701.08553.90292.17423.42924.31554.98942.49914.3278
H105.03623.40492.15893.90401.08653.42062.16702.49914.98944.32132.4974
H115.03623.40493.90402.15893.42061.08652.16704.98942.49914.32132.4974
H125.80153.88393.42393.42392.16572.16571.08624.32784.32782.49742.4974

picture of bromobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br1 C2 C3 119.278 Br1 C2 C4 119.278
C2 C3 C5 118.994 C2 C3 H8 120.040
C2 C4 C6 118.994 C2 C4 H9 120.040
C3 C2 C4 121.444 C3 C5 C7 120.366
C3 C5 H10 119.452 C4 C6 C7 120.366
C4 C6 H11 119.452 C5 C3 H8 120.966
C5 C7 C6 119.837 C5 C7 H12 120.082
C6 C4 H9 120.966 C6 C7 H12 120.082
C7 C5 H10 120.182 C7 C6 H11 120.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability