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: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-436.690617
Energy at 298.15K-436.697673
Nuclear repulsion energy414.418890
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 B1B95/6-311G*
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 3243 3108 4.16      
2 A1 3218 3085 13.70      
3 A1 3195 3063 0.89      
4 A1 1656 1588 2.99      
5 A1 1515 1452 10.01      
6 A1 1428 1369 280.57      
7 A1 1194 1144 0.06      
8 A1 1129 1082 33.08      
9 A1 1044 1001 8.39      
10 A1 1017 975 0.07      
11 A1 883 846 39.45      
12 A1 694 665 9.02      
13 A1 393 376 1.35      
14 A2 988 947 0.00      
15 A2 855 820 0.00      
16 A2 414 397 0.00      
17 A2 53 50 0.00      
18 B1 1011 969 0.41      
19 B1 959 919 4.47      
20 B1 802 769 15.95      
21 B1 718 688 77.35      
22 B1 690 662 17.00      
23 B1 441 423 0.58      
24 B1 169 162 0.74      
25 B2 3242 3108 0.00      
26 B2 3209 3076 14.15      
27 B2 1701 1631 125.47      
28 B2 1652 1584 131.02      
29 B2 1500 1438 1.59      
30 B2 1385 1328 11.13      
31 B2 1326 1271 0.46      
32 B2 1185 1135 0.56      
33 B2 1093 1048 9.80      
34 B2 615 590 0.03      
35 B2 531 509 1.05      
36 B2 249 239 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 22697.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 21757.5 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 B1B95/6-311G*
ABC
0.13397 0.04331 0.03273

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.242
C2 0.000 1.214 -0.425
C3 0.000 1.206 -1.811
C4 0.000 0.000 -2.502
C5 0.000 -1.206 -1.811
C6 0.000 -1.214 -0.425
N7 0.000 0.000 1.715
O8 0.000 -1.078 2.275
O9 0.000 1.078 2.275
H10 0.000 2.133 0.143
H11 0.000 2.144 -2.352
H12 0.000 0.000 -3.586
H13 0.000 -2.144 -2.352
H14 0.000 -2.133 0.143

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 O9 H10 H11 H12 H13 H14
C11.38462.38052.74372.38051.38461.47352.30142.30142.13563.36493.82753.36492.1356
C21.38461.38602.40562.78802.42712.46023.54122.70331.08102.13973.38583.87123.3947
C32.38051.38601.38962.41112.78803.72654.68074.08792.16301.08322.14553.39313.8686
C42.74372.40561.38961.38962.40564.21724.89714.89713.39812.14951.08372.14953.3981
C52.38052.78802.41111.38961.38603.72654.08794.68073.86863.39312.14551.08322.1630
C61.38462.42712.78802.40561.38602.46022.70333.54123.39473.87123.38582.13971.0810
N71.47352.46023.72654.21723.72652.46021.21461.21462.65014.59745.30094.59742.6501
O82.30143.54124.68074.89714.08792.70331.21462.15583.85465.63805.95914.74792.3790
O92.30142.70334.08794.89714.68073.54121.21462.15582.37904.74795.95915.63803.8546
H102.13561.08102.16303.39813.86863.39472.65013.85462.37902.49464.29594.95184.2667
H113.36492.13971.08322.14953.39313.87124.59745.63804.74792.49462.47404.28844.9518
H123.82753.38582.14551.08372.14553.38585.30095.95915.95914.29592.47402.47404.2959
H133.36493.87123.39312.14951.08322.13974.59744.74795.63804.95184.28842.47402.4946
H142.13563.39473.86863.39812.16301.08102.65012.37903.85464.26674.95184.29592.4946

picture of Nitrobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.451 C1 C2 H10 119.527
C1 C6 C5 118.451 C1 C6 H14 119.527
C1 N7 O8 117.446 C1 N7 O9 117.446
C2 C1 C6 122.438 C2 C1 N7 118.781
C2 C3 C4 120.155 C2 C3 H11 119.610
C3 C2 H10 122.022 C3 C4 C5 120.352
C3 C4 H12 119.824 C4 C3 H11 120.236
C4 C5 C6 120.155 C4 C5 H13 120.236
C5 C4 H12 119.824 C5 C6 H14 122.022
C6 C1 N7 118.781 C6 C5 H13 119.610
O8 N7 O9 125.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.175      
2 C -0.186      
3 C -0.215      
4 C -0.171      
5 C -0.215      
6 C -0.186      
7 N 0.163      
8 O -0.268      
9 O -0.268      
10 H 0.258      
11 H 0.219      
12 H 0.217      
13 H 0.219      
14 H 0.258      


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 -4.504 4.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.646 0.000 0.000
y 0.000 -47.023 0.000
z 0.000 0.000 -53.753
Traceless
 xyz
x -2.258 0.000 0.000
y 0.000 6.177 0.000
z 0.000 0.000 -3.919
Polar
3z2-r2-7.837
x2-y2-5.623
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.674 0.000 0.000
y 0.000 13.013 0.000
z 0.000 0.000 14.961


<r2> (average value of r2) Å2
<r2> 310.615
(<r2>)1/2 17.624