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All results from a given calculation for C6H5NO (nitrosobenzene)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-61.725813
Energy at 298.15K 
HF Energy-60.960765
Nuclear repulsion energy159.189148
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-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3168 3092 11.71      
2 A' 3162 3086 19.32      
3 A' 3150 3075 20.07      
4 A' 3139 3064 12.05      
5 A' 3128 3052 0.48      
6 A' 1592 1554 1.99      
7 A' 1583 1545 10.59      
8 A' 1483 1447 0.41      
9 A' 1455 1420 9.24      
10 A' 1367 1334 6.59      
11 A' 1342 1310 4.08      
12 A' 1327 1296 26.49      
13 A' 1202 1173 0.82      
14 A' 1190 1162 0.24      
15 A' 1140 1113 84.85      
16 A' 1083 1057 3.14      
17 A' 1015 991 4.62      
18 A' 979 955 2.04      
19 A' 790 771 22.42      
20 A' 653 637 7.85      
21 A' 614 599 0.01      
22 A' 432 422 0.73      
23 A' 247 241 1.51      
24 A" 787 768 1.44      
25 A" 781 762 0.76      
26 A" 715 697 0.07      
27 A" 694 677 113.27      
28 A" 679 663 5.52      
29 A" 410 401 1.24      
30 A" 330 322 0.01      
31 A" 220 214 0.51      
32 A" 90 88 0.01      
33 A" 836i 816i 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 19554.8 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 19085.5 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-121G
ABC
0.16651 0.05176 0.03949

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.602 0.000
C2 -1.075 -0.340 0.000
C3 -0.762 -1.730 0.000
C4 0.604 -2.166 0.000
C5 1.666 -1.209 0.000
C6 1.364 0.185 0.000
N7 -0.181 2.082 0.000
O8 -1.440 2.457 0.000
H9 -2.109 0.011 0.000
H10 -1.569 -2.468 0.000
H11 0.833 -3.235 0.000
H12 2.707 -1.544 0.000
H13 2.148 0.947 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 H9 H10 H11 H12 H13
C11.42972.45332.83272.46071.42641.49122.34812.19023.44783.92623.45412.1757
C21.42971.42422.47972.87522.49532.58232.82121.09192.18403.46663.96853.4709
C32.45331.42421.43362.48322.86183.85614.24142.20081.09362.19293.47373.9543
C42.83272.47971.43361.42942.47104.31985.05413.47772.19381.09352.19303.4748
C52.46072.87522.48321.42941.42683.77434.80463.96693.47132.19031.09332.2095
C61.42642.49532.86182.47101.42682.44683.60863.47753.95543.46142.18921.0930
N71.49122.58233.85614.31983.77432.44681.31282.82954.75715.41294.63562.5915
O82.34812.82124.24145.05414.80463.60861.31282.53624.92666.12875.76183.8926
H92.19021.09192.20083.47773.96693.47752.82952.53622.53674.38035.06024.3589
H103.44782.18401.09362.19383.47133.95544.75714.92662.53672.52154.37455.0479
H113.92623.46662.19291.09352.19033.46145.41296.12874.38032.52152.52404.3839
H123.45413.96853.47372.19301.09332.18924.63565.76185.06024.37452.52402.5527
H132.17573.47093.95433.47482.20951.09302.59153.89264.35895.04794.38392.5527

picture of nitrosobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.552 C1 C2 H9 119.994
C1 C6 C5 119.184 C1 C6 H13 118.848
C1 N7 O8 113.577 C2 C1 C6 121.776
C2 C1 N7 124.254 C2 C3 C4 120.385
C2 C3 H10 119.750 C3 C2 H9 121.455
C3 C4 C5 120.303 C3 C4 H11 119.790
C4 C3 H10 119.864 C4 C5 C6 119.801
C4 C5 H12 120.168 C5 C4 H11 119.907
C5 C6 H13 121.969 C6 C1 N7 113.970
C6 C5 H12 120.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability