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All results from a given calculation for C6H5NO (nitrosobenzene)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-358.085665
Energy at 298.15K 
HF Energy-357.304889
Nuclear repulsion energy319.272316
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3238 3080 3.39      
2 A' 3224 3067 7.72      
3 A' 3213 3057 8.09      
4 A' 3204 3048 4.18      
5 A' 3194 3039 0.17      
6 A' 1601 1523 2.48      
7 A' 1592 1515 5.83      
8 A' 1522 1448 4.12      
9 A' 1503 1430 9.76      
10 A' 1374 1308 2.91      
11 A' 1339 1274 3.68      
12 A' 1238 1178 0.62      
13 A' 1235 1175 0.25      
14 A' 1195 1137 17.59      
15 A' 1128 1073 46.32      
16 A' 1103 1050 4.69      
17 A' 1044 994 9.76      
18 A' 1015 966 0.69      
19 A' 782 744 23.40      
20 A' 664 631 8.09      
21 A' 649 618 0.12      
22 A' 441 419 0.80      
23 A' 263 250 1.72      
24 A" 963 916 1.39      
25 A" 939 893 0.10      
26 A" 922 877 6.90      
27 A" 863 821 0.00      
28 A" 761 724 95.52      
29 A" 678 645 6.90      
30 A" 479 455 3.54      
31 A" 425 404 0.02      
32 A" 243 231 0.26      
33 A" 118 112 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 21075.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 20049.1 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 MP2/3-21G*
ABC
0.17085 0.05341 0.04069

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.603 0.000
C2 -1.026 -0.355 0.000
C3 -0.692 -1.716 0.000
C4 0.662 -2.112 0.000
C5 1.682 -1.143 0.000
C6 1.349 0.222 0.000
N7 -0.247 2.068 0.000
O8 -1.543 2.329 0.000
H9 -2.054 -0.011 0.000
H10 -1.477 -2.467 0.000
H11 0.917 -3.169 0.000
H12 2.724 -1.449 0.000
H13 2.114 0.994 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 H9 H10 H11 H12 H13
C11.40382.42042.79512.42421.40181.48562.31492.14393.40733.88163.41032.1499
C21.40381.40132.43632.81962.44402.54532.73361.08452.15983.41903.90593.4174
C32.42041.40131.41062.44182.81493.81034.13372.18251.08652.16763.42653.9010
C42.79512.43631.41061.40702.43374.27814.95853.43402.16811.08662.16643.4289
C52.42422.81962.44181.40701.40523.74584.73833.90353.42512.16511.08632.1801
C61.40182.44402.81492.43371.40522.44023.57793.41113.90143.41822.16391.0865
N71.48562.54533.81034.27813.74582.44021.32172.75444.69925.36444.60382.5941
O82.31492.73364.13374.95854.73833.57791.32172.39514.79686.02285.69883.8931
H92.14391.08452.18253.43403.90353.41112.75442.39512.52334.33574.98974.2875
H103.40732.15981.08652.16813.42513.90144.69924.79682.52332.49474.32284.9876
H113.88163.41902.16761.08662.16513.41825.36446.02284.33572.49472.49464.3310
H123.41033.90593.42652.16641.08632.16394.60385.69884.98974.32282.49462.5174
H132.14993.41743.90103.42892.18011.08652.59413.89314.28754.98764.33102.5174

picture of nitrosobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.278 C1 C2 H9 118.431
C1 C6 C5 119.457 C1 C6 H13 118.991
C1 N7 O8 110.966 C2 C1 C6 121.176
C2 C1 N7 123.479 C2 C3 C4 120.091
C2 C3 H10 119.957 C3 C2 H9 122.292
C3 C4 C5 120.137 C3 C4 H11 119.898
C4 C3 H10 119.952 C4 C5 C6 119.861
C4 C5 H12 120.107 C5 C4 H11 119.965
C5 C6 H13 121.552 C6 C1 N7 115.345
C6 C5 H12 120.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability