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 C6H5NO (nitrosobenzene)

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-360.831647
Energy at 298.15K 
HF Energy-359.463355
Nuclear repulsion energy324.555391
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/cc-pVTZ
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' 3245 3082 5.45      
2 A' 3241 3077 4.48      
3 A' 3231 3068 3.70      
4 A' 3224 3061 3.91      
5 A' 3212 3050 0.31      
6 A' 1647 1564 1.38      
7 A' 1638 1555 5.44      
8 A' 1522 1445 21.71      
9 A' 1494 1419 4.44      
10 A' 1478 1404 8.34      
11 A' 1464 1390 57.67      
12 A' 1330 1262 6.39      
13 A' 1204 1143 36.47      
14 A' 1181 1121 0.46      
15 A' 1152 1094 76.81      
16 A' 1095 1039 4.79      
17 A' 1039 986 5.02      
18 A' 1013 962 1.26      
19 A' 833 791 30.07      
20 A' 674 640 5.55      
21 A' 613 582 0.01      
22 A' 444 422 0.92      
23 A' 258 245 1.63      
24 A" 992 941 0.12      
25 A" 987 937 0.06      
26 A" 948 900 4.58      
27 A" 866 822 0.01      
28 A" 774 735 66.75      
29 A" 691 656 15.39      
30 A" 473 449 2.85      
31 A" 415 394 0.00      
32 A" 243 231 0.25      
33 A" 97 92 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21357.1 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 20278.6 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/cc-pVTZ
ABC
0.17577 0.05503 0.04191

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.595 0.000
C2 -1.052 -0.321 0.000
C3 -0.756 -1.677 0.000
C4 0.574 -2.109 0.000
C5 1.616 -1.183 0.000
C6 1.329 0.178 0.000
N7 -0.185 2.025 0.000
O8 -1.359 2.381 0.000
H9 -2.070 0.044 0.000
H10 -1.557 -2.404 0.000
H11 0.794 -3.167 0.000
H12 2.642 -1.523 0.000
H13 2.107 0.929 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 H9 H10 H11 H12 H13
C11.39532.39512.76392.40321.39271.44182.24472.14183.37943.84533.38652.1334
C21.39531.38822.41652.80442.43302.50112.71971.08042.14353.39273.88533.3978
C32.39511.38821.39822.42342.79123.74614.10322.16461.08122.15033.40213.8720
C42.76392.41651.39821.39392.40824.20274.88843.40842.15071.08142.14993.4027
C52.40322.80442.42341.39391.39153.67964.64353.88453.39962.14761.08092.1687
C61.39272.43302.79122.40821.39152.38833.47583.40113.87243.38792.14921.0814
N71.44182.50113.74614.20273.67962.38831.22702.73434.63675.28394.53702.5411
O82.24472.71974.10324.88844.64353.47581.22702.44334.78975.95195.59093.7586
H92.14181.08042.16463.40843.88453.40112.73432.44332.50094.30214.96544.2695
H103.37942.14351.08122.15073.39963.87244.63674.78972.50092.47134.29044.9532
H113.84533.39272.15031.08142.14763.38795.28395.95194.30212.47132.47384.3016
H123.38653.88533.40212.14991.08092.14924.53705.59094.96544.29042.47382.5097
H132.13343.39783.87203.40272.16871.08142.54113.75864.26954.95324.30162.5097

picture of nitrosobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 118.729 C1 C2 H9 119.245
C1 C6 C5 119.339 C1 C6 H13 118.605
C1 N7 O8 114.273 C2 C1 C6 121.535
C2 C1 N7 123.651 C2 C3 C4 120.278
C2 C3 H10 119.942 C3 C2 H9 122.026
C3 C4 C5 120.447 C3 C4 H11 119.720
C4 C3 H10 119.780 C4 C5 C6 119.672
C4 C5 H12 120.096 C5 C4 H11 119.833
C5 C6 H13 122.056 C6 C1 N7 114.814
C6 C5 H12 120.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability