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All results from a given calculation for C6H5Br (bromobenzene)

using model chemistry: MP2/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-49.353533
Energy at 298.15K-49.361233
Nuclear repulsion energy125.730085
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/CEP-31G
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 3205 3097 15.52      
2 A1 3185 3078 27.51      
3 A1 3146 3040 0.06      
4 A1 1583 1530 27.51      
5 A1 1476 1427 29.57      
6 A1 1206 1165 0.03      
7 A1 1073 1036 12.53      
8 A1 1011 977 36.25      
9 A1 986 953 0.72      
10 A1 659 636 15.99      
11 A1 296 286 1.20      
12 A2 881 852 0.00      
13 A2 817 790 0.00      
14 A2 399 386 0.00      
15 B1 874 845 0.07      
16 B1 851 822 0.94      
17 B1 733 708 144.04      
18 B1 591 571 0.55      
19 B1 452 436 11.69      
20 B1 161 156 0.82      
21 B2 3198 3090 36.03      
22 B2 3163 3056 12.34      
23 B2 1587 1534 1.62      
24 B2 1442 1394 8.77      
25 B2 1380 1333 0.02      
26 B2 1333 1288 0.52      
27 B2 1187 1147 0.07      
28 B2 1078 1042 4.20      
29 B2 606 585 0.29      
30 B2 236 228 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 19397.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 18743.5 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/CEP-31G
ABC
0.17766 0.03075 0.02621

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 1.870
C2 0.000 0.000 -0.108
C3 0.000 1.257 -0.811
C4 0.000 -1.257 -0.811
C5 0.000 1.248 -2.253
C6 0.000 -1.248 -2.253
C7 0.000 0.000 -2.977
H8 0.000 2.205 -0.255
H9 0.000 -2.205 -0.255
H10 0.000 2.204 -2.798
H11 0.000 -2.204 -2.798
H12 0.000 0.000 -4.077

Atom - Atom Distances (Å)
  Br1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Br11.97832.96112.96114.30844.30844.84703.06253.06255.16305.16305.9473
C21.97831.44021.44022.48192.48192.86862.20982.20983.47823.47823.9690
C32.96111.44022.51421.44272.89062.50431.09873.50642.20193.99163.4998
C42.96111.44022.51422.89061.44272.50433.50641.09873.99162.20193.4998
C54.30842.48191.44272.89062.49551.44222.21583.98931.10103.49492.2096
C64.30842.48192.89061.44272.49551.44223.98932.21583.49491.10102.2096
C74.84702.86862.50432.50431.44221.44223.50273.50272.21162.21161.1004
H83.06252.20981.09873.50642.21583.98933.50274.40992.54345.09034.4124
H93.06252.20983.50641.09873.98932.21583.50274.40995.09032.54344.4124
H105.16303.47822.20193.99161.10103.49492.21162.54345.09034.40882.5483
H115.16303.47823.99162.20193.49491.10102.21165.09032.54344.40882.5483
H125.94733.96903.49983.49982.20962.20961.10044.41244.41242.54832.5483

picture of bromobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br1 C2 C3 119.204 Br1 C2 C4 119.204
C2 C3 C5 118.832 C2 C3 H8 120.413
C2 C4 C6 118.832 C2 C4 H9 120.413
C3 C2 C4 121.592 C3 C5 C7 120.469
C3 C5 H10 119.298 C4 C6 C7 120.469
C4 C6 H11 119.298 C5 C3 H8 120.755
C5 C7 C6 119.806 C5 C7 H12 120.097
C6 C4 H9 120.755 C6 C7 H12 120.097
C7 C5 H10 120.233 C7 C6 H11 120.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability