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 C6H5NO2 (Nitrobenzene)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-436.459456
Energy at 298.15K-436.466631
Nuclear repulsion energy411.012471
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 B1B95/6-31G
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 3277 3125 6.60      
2 A1 3254 3103 9.48      
3 A1 3229 3079 0.95      
4 A1 1666 1588 8.74      
5 A1 1535 1463 5.30      
6 A1 1327 1265 252.63      
7 A1 1222 1165 8.71      
8 A1 1146 1093 17.26      
9 A1 1059 1010 7.31      
10 A1 1037 989 0.09      
11 A1 843 804 19.76      
12 A1 697 665 12.92      
13 A1 404 385 2.31      
14 A2 1031 983 0.00      
15 A2 886 845 0.00      
16 A2 426 406 0.00      
17 A2 68 65 0.00      
18 B1 1057 1008 0.55      
19 B1 996 950 6.56      
20 B1 818 781 37.38      
21 B1 713 680 53.85      
22 B1 701 669 19.10      
23 B1 454 433 0.33      
24 B1 176 168 1.26      
25 B2 3275 3123 0.39      
26 B2 3244 3093 12.10      
27 B2 1684 1606 0.88      
28 B2 1539 1468 108.79      
29 B2 1500 1430 54.60      
30 B2 1412 1347 14.53      
31 B2 1362 1299 0.59      
32 B2 1221 1165 0.17      
33 B2 1115 1064 10.93      
34 B2 634 605 0.07      
35 B2 530 505 1.02      
36 B2 253 241 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 22894.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 21834.2 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 B1B95/6-31G
ABC
0.13088 0.04295 0.03234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.242
C2 0.000 1.220 -0.426
C3 0.000 1.212 -1.818
C4 0.000 0.000 -2.512
C5 0.000 -1.212 -1.818
C6 0.000 -1.220 -0.426
N7 0.000 0.000 1.702
O8 0.000 -1.109 2.291
O9 0.000 1.109 2.291
H10 0.000 2.138 0.144
H11 0.000 2.149 -2.359
H12 0.000 0.000 -3.596
H13 0.000 -2.149 -2.359
H14 0.000 -2.138 0.144

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 O9 H10 H11 H12 H13 H14
C11.39102.39022.75452.39021.39101.45992.33002.33002.14063.37473.83813.37472.1406
C21.39101.39182.41642.80152.43962.45323.57902.72001.08102.14503.39613.88443.4061
C32.39021.39181.39642.42322.80153.72294.71944.11082.16961.08282.15133.40433.8821
C42.75452.41641.39641.39642.41644.21444.93004.93003.40982.15481.08352.15483.4098
C52.39022.80152.42321.39641.39183.72294.11084.71943.88213.40432.15131.08282.1696
C61.39102.43962.80152.41641.39182.45322.72003.57903.40613.88443.39612.14501.0810
N71.45992.45323.72294.21443.72292.45321.25581.25582.64604.59525.29794.59522.6460
O82.33003.57904.71944.93004.11082.72001.25582.21783.89325.67875.99084.76592.3817
O92.33002.72004.11084.93004.71943.57901.25582.21782.38174.76595.99085.67873.8932
H102.14061.08102.16963.40983.88213.40612.64603.89322.38172.50324.30774.96494.2767
H113.37472.14501.08282.15483.40433.88444.59525.67874.76592.50322.47964.29884.9649
H123.83813.39612.15131.08352.15133.39615.29795.99085.99084.30772.47962.47964.3077
H133.37473.88443.40432.15481.08282.14504.59524.76595.67874.96494.29882.47962.5032
H142.14063.40613.88213.40982.16961.08102.64602.38173.89324.27674.96494.30772.5032

picture of Nitrobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.391 C1 C2 H10 119.450
C1 C6 C5 118.391 C1 C6 H14 119.450
C1 N7 O8 117.988 C1 N7 O9 117.988
C2 C1 C6 122.544 C2 C1 N7 118.728
C2 C3 C4 120.147 C2 C3 H11 119.660
C3 C2 H10 122.159 C3 C4 C5 120.379
C3 C4 H12 119.810 C4 C3 H11 120.193
C4 C5 C6 120.147 C4 C5 H13 120.193
C5 C4 H12 119.810 C5 C6 H14 122.159
C6 C1 N7 118.728 C6 C5 H13 119.660
O8 N7 O9 124.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.275      
2 C -0.114      
3 C -0.177      
4 C -0.120      
5 C -0.177      
6 C -0.114      
7 N 0.046      
8 O -0.288      
9 O -0.288      
10 H 0.216      
11 H 0.176      
12 H 0.173      
13 H 0.176      
14 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -5.107 5.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.343 0.000 0.000
y 0.000 -47.433 0.000
z 0.000 0.000 -54.987
Traceless
 xyz
x -1.133 0.000 0.000
y 0.000 6.232 0.000
z 0.000 0.000 -5.099
Polar
3z2-r2-10.197
x2-y2-4.910
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.398 0.000 0.000
y 0.000 12.651 0.000
z 0.000 0.000 14.810


<r2> (average value of r2) Å2
<r2> 314.214
(<r2>)1/2 17.726