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/STO-3G

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/STO-3G
 hartrees
Energy at 0K-430.990451
Energy at 298.15K-430.996739
Nuclear repulsion energy401.836417
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/STO-3G
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 3504 3094 4.05      
2 A1 3486 3079 18.73      
3 A1 3474 3067 6.37      
4 A1 1748 1543 0.10      
5 A1 1602 1414 14.45      
6 A1 1293 1141 67.60      
7 A1 1237 1092 4.38      
8 A1 1163 1027 12.02      
9 A1 1091 964 1.93      
10 A1 1058 935 0.79      
11 A1 799 705 20.97      
12 A1 644 568 22.99      
13 A1 358 316 0.96      
14 A2 1051 928 0.00      
15 A2 914 807 0.00      
16 A2 428 378 0.00      
17 A2 62 55 0.00      
18 B1 1070 945 0.10      
19 B1 995 878 2.97      
20 B1 807 713 26.37      
21 B1 736 650 8.95      
22 B1 615 543 7.73      
23 B1 436 385 0.00      
24 B1 166 147 0.46      
25 B2 3495 3086 29.24      
26 B2 3481 3073 9.10      
27 B2 1772 1564 0.02      
28 B2 1641 1449 31.36      
29 B2 1574 1390 5.85      
30 B2 1387 1225 0.15      
31 B2 1379 1218 3.57      
32 B2 1240 1095 0.01      
33 B2 1135 1002 1.79      
34 B2 639 564 0.02      
35 B2 485 428 0.80      
36 B2 187 165 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 23573.4 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 20815.3 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/STO-3G
ABC
0.12557 0.04087 0.03083

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.214
C2 0.000 1.228 -0.457
C3 0.000 1.220 -1.859
C4 0.000 0.000 -2.554
C5 0.000 -1.220 -1.859
C6 0.000 -1.228 -0.457
N7 0.000 0.000 1.760
O8 0.000 -1.167 2.357
O9 0.000 1.167 2.357
H10 0.000 2.152 0.134
H11 0.000 2.167 -2.411
H12 0.000 0.000 -3.650
H13 0.000 -2.167 -2.411
H14 0.000 -2.152 0.134

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 O9 H10 H11 H12 H13 H14
C11.39922.40522.76822.40521.39921.54552.43992.43992.15403.40403.86453.40402.1540
C21.39921.40142.42962.82042.45502.53423.69502.81501.09752.16773.42093.91663.4312
C32.40521.40141.40432.44012.82043.81854.84454.21602.19951.09632.16773.43193.9169
C42.76822.42961.40431.40432.42964.31375.04775.04773.44312.17191.09642.17193.4431
C52.40522.82042.44011.40431.40143.81854.21604.84453.91693.43192.16771.09632.1995
C61.39922.45502.82042.42961.40142.53422.81503.69503.43123.91663.42092.16771.0975
N71.54552.53423.81854.31373.81852.53421.31081.31082.69774.70005.41014.70002.6977
O82.43993.69504.84455.04774.21602.81501.31082.33363.99525.81796.11964.87162.4322
O92.43992.81504.21605.04774.84453.69501.31082.33362.43224.87166.11965.81793.9952
H102.15401.09752.19953.44313.91693.43122.69773.99522.43222.54434.35325.01324.3049
H113.40402.16771.09632.17193.43193.91664.70005.81794.87162.54432.49664.33435.0132
H123.86453.42092.16771.09642.16773.42095.41016.11966.11964.35322.49662.49664.3532
H133.40403.91663.43192.17191.09632.16774.70004.87165.81795.01324.33432.49662.5443
H142.15403.43123.91693.44312.19951.09752.69772.43223.99524.30495.01324.35322.5443

picture of Nitrobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.374 C1 C2 H10 118.755
C1 C6 C5 118.374 C1 C6 H14 118.755
C1 N7 O8 117.108 C1 N7 O9 117.108
C2 C1 C6 122.641 C2 C1 N7 118.679
C2 C3 C4 119.984 C2 C3 H11 119.936
C3 C2 H10 122.871 C3 C4 C5 120.641
C3 C4 H12 119.679 C4 C3 H11 120.080
C4 C5 C6 119.984 C4 C5 H13 120.080
C5 C4 H12 119.679 C5 C6 H14 122.871
C6 C1 N7 118.679 C6 C5 H13 119.936
O8 N7 O9 125.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.062      
2 C -0.079      
3 C -0.075      
4 C -0.074      
5 C -0.075      
6 C -0.079      
7 N 0.077      
8 O -0.130      
9 O -0.130      
10 H 0.110      
11 H 0.094      
12 H 0.093      
13 H 0.094      
14 H 0.110      


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 -3.111 3.111
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.294 0.000 0.000
y 0.000 -44.382 0.000
z 0.000 0.000 -49.016
Traceless
 xyz
x -0.595 0.000 0.000
y 0.000 3.773 0.000
z 0.000 0.000 -3.177
Polar
3z2-r2-6.355
x2-y2-2.912
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.286 0.000 0.000
y 0.000 8.837 0.000
z 0.000 0.000 10.297


<r2> (average value of r2) Å2
<r2> 324.604
(<r2>)1/2 18.017