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=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-355.318606
Energy at 298.15K 
HF Energy-354.807393
Nuclear repulsion energy315.098620
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3530 3138 1.21      
2 A' 3522 3130 8.10      
3 A' 3516 3125 4.59      
4 A' 3510 3120 0.94      
5 A' 3504 3115 3.73      
6 A' 1730 1538 0.76      
7 A' 1726 1534 1.71      
8 A' 1617 1437 1.92      
9 A' 1582 1406 10.05      
10 A' 1421 1263 1.88      
11 A' 1324 1177 5.41      
12 A' 1303 1158 1.11      
13 A' 1261 1121 2.71      
14 A' 1219 1084 4.64      
15 A' 1215 1080 25.36      
16 A' 1147 1019 0.81      
17 A' 1095 973 0.00      
18 A' 1065 947 3.34      
19 A' 832 739 19.01      
20 A' 664 590 3.14      
21 A' 652 580 0.02      
22 A' 433 385 1.60      
23 A' 226 201 0.31      
24 A" 1077 957 0.07      
25 A" 1062 944 0.01      
26 A" 998 887 1.51      
27 A" 931 827 0.00      
28 A" 800 711 22.23      
29 A" 754 670 3.51      
30 A" 491 436 0.07      
31 A" 437 389 0.00      
32 A" 229 204 0.98      
33 A" 72 64 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 22471.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 19974.6 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=FULL/STO-3G
ABC
0.16741 0.05169 0.03950

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.607 0.000
C2 -1.018 -0.380 0.000
C3 -0.661 -1.749 0.000
C4 0.705 -2.127 0.000
C5 1.719 -1.136 0.000
C6 1.369 0.236 0.000
N7 -0.307 2.132 0.000
O8 -1.615 2.319 0.000
H9 -2.073 -0.062 0.000
H10 -1.446 -2.522 0.000
H11 0.980 -3.193 0.000
H12 2.779 -1.433 0.000
H13 2.144 1.019 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 O8 H9 H10 H11 H12 H13
C11.41832.44752.82362.44811.41841.55542.35302.17853.44743.92453.44792.1829
C21.41831.41452.45352.83912.46522.61102.76441.10192.18423.44993.94033.4574
C32.44751.41451.41802.45802.83963.89744.17822.19931.10142.18593.45493.9409
C42.82362.45351.41801.41742.45434.37755.01473.46122.18731.10092.18653.4588
C52.44812.83912.45801.41741.41583.84494.80083.94083.45502.18581.10122.1961
C61.41842.46522.83962.45431.41582.53063.63883.45493.94103.45102.18531.1014
N71.55542.61103.89744.37753.84492.53061.32112.81704.79165.47834.71562.6918
O82.35302.76444.17825.01474.80083.63881.32112.42514.84406.09195.77803.9771
H92.17851.10192.19933.46123.94083.45492.81702.42512.53834.37255.04204.3532
H103.44742.18421.10142.18733.45503.94104.79164.84402.53832.51674.36305.0423
H113.92453.44992.18591.10092.18583.45105.47836.09194.37252.51672.51664.3696
H123.44793.94033.45492.18651.10122.18534.71565.77805.04204.36302.51662.5332
H132.18293.45743.94093.45882.19611.10142.69183.97714.35325.04234.36962.5332

picture of nitrosobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.537 C1 C2 H9 119.106
C1 C6 C5 119.479 C1 C6 H13 119.535
C1 N7 O8 109.510 C2 C1 C6 120.692
C2 C1 N7 122.751 C2 C3 C4 120.044
C2 C3 H10 119.982 C3 C2 H9 121.357
C3 C4 C5 120.198 C3 C4 H11 119.879
C4 C3 H10 119.974 C4 C5 C6 120.051
C4 C5 H12 119.965 C5 C4 H11 119.923
C5 C6 H13 120.986 C6 C1 N7 116.557
C6 C5 H12 119.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability