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All results from a given calculation for C6H5NO2 (Nitrobenzene)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-434.151173
Energy at 298.15K-434.158416
Nuclear repulsion energy410.648792
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 B1B95/3-21G
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 3273 3131 5.79      
2 A1 3249 3108 4.23      
3 A1 3226 3086 0.52      
4 A1 1639 1568 4.20      
5 A1 1535 1468 12.51      
6 A1 1245 1192 42.51      
7 A1 1223 1170 170.48      
8 A1 1122 1074 0.00      
9 A1 1059 1014 6.96      
10 A1 1036 991 0.01      
11 A1 803 768 11.83      
12 A1 678 648 16.26      
13 A1 414 396 2.89      
14 A2 1051 1005 0.00      
15 A2 897 858 0.00      
16 A2 437 418 0.00      
17 A2 86 82 0.00      
18 B1 1072 1026 2.77      
19 B1 1014 970 7.69      
20 B1 822 787 35.39      
21 B1 735 703 49.55      
22 B1 672 643 39.88      
23 B1 457 437 0.58      
24 B1 184 176 0.47      
25 B2 3271 3130 2.40      
26 B2 3239 3099 6.86      
27 B2 1652 1581 0.32      
28 B2 1518 1452 26.94      
29 B2 1401 1341 66.68      
30 B2 1371 1312 3.99      
31 B2 1361 1302 18.46      
32 B2 1230 1176 0.00      
33 B2 1125 1076 15.12      
34 B2 642 614 0.04      
35 B2 502 480 1.01      
36 B2 273 261 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 22755.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 21770.0 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 B1B95/3-21G
ABC
0.12965 0.04318 0.03239

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.244
C2 0.000 1.213 -0.425
C3 0.000 1.210 -1.814
C4 0.000 0.000 -2.507
C5 0.000 -1.210 -1.814
C6 0.000 -1.213 -0.425
N7 0.000 0.000 1.702
O8 0.000 -1.135 2.283
O9 0.000 1.135 2.283
H10 0.000 2.123 0.156
H11 0.000 2.147 -2.354
H12 0.000 0.000 -3.590
H13 0.000 -2.147 -2.354
H14 0.000 -2.123 0.156

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 O9 H10 H11 H12 H13 H14
C11.38542.38702.75112.38701.38541.45852.33362.33362.12463.37033.83363.37032.1246
C21.38541.38882.40992.79292.42652.44903.58412.70911.07932.14313.38933.87473.3863
C32.38701.38881.39452.41972.79293.71844.72024.09742.17121.08182.14893.40023.8713
C42.75112.40991.39451.39452.40994.20964.92284.92283.40592.15271.08242.15273.4059
C52.38702.79292.41971.39451.38883.71844.09744.72023.87133.40022.14891.08182.1712
C61.38542.42652.79292.40991.38882.44902.70913.58413.38633.87473.38932.14311.0793
N71.45852.44903.71844.20963.71842.44901.27471.27472.62624.58955.29204.58952.6262
O82.33363.58414.72024.92284.09742.70911.27472.26953.89035.68085.98134.74612.3451
O92.33362.70914.09744.92284.72023.58411.27472.26952.34514.74615.98135.68083.8903
H102.12461.07932.17123.40593.87133.38632.62623.89032.34512.51024.30554.95314.2455
H113.37032.14311.08182.15273.40023.87474.58955.68084.74612.51022.47744.29444.9531
H123.83363.38932.14891.08242.14893.38935.29205.98135.98134.30552.47742.47744.3055
H133.37033.87473.40022.15271.08182.14314.58954.74615.68084.95314.29442.47742.5102
H142.12463.38633.87133.40592.17121.07932.62622.34513.89034.24554.95314.30552.5102

picture of Nitrobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.728 C1 C2 H10 118.553
C1 C6 C5 118.728 C1 C6 H14 118.553
C1 N7 O8 117.097 C1 N7 O9 117.097
C2 C1 C6 122.264 C2 C1 N7 118.868
C2 C3 C4 119.960 C2 C3 H11 119.813
C3 C2 H10 122.719 C3 C4 C5 120.360
C3 C4 H12 119.820 C4 C3 H11 120.227
C4 C5 C6 119.960 C4 C5 H13 120.227
C5 C4 H12 119.820 C5 C6 H14 122.719
C6 C1 N7 118.868 C6 C5 H13 119.813
O8 N7 O9 125.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.285      
2 C -0.190      
3 C -0.213      
4 C -0.193      
5 C -0.213      
6 C -0.190      
7 N 0.074      
8 O -0.289      
9 O -0.289      
10 H 0.262      
11 H 0.232      
12 H 0.230      
13 H 0.232      
14 H 0.262      


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 -4.438 4.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.188 0.000 0.000
y 0.000 -46.695 0.000
z 0.000 0.000 -52.905
Traceless
 xyz
x -3.389 0.000 0.000
y 0.000 6.351 0.000
z 0.000 0.000 -2.963
Polar
3z2-r2-5.925
x2-y2-6.493
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.730 0.000 0.000
y 0.000 12.039 0.000
z 0.000 0.000 13.909


<r2> (average value of r2) Å2
<r2> 313.285
(<r2>)1/2 17.700