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 C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-286.533070
Energy at 298.15K-286.541832
HF Energy-286.533070
Nuclear repulsion energy240.163311
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 B97D3/aug-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' 3109 3061 6.43      
2 A' 3004 2958 63.37      
3 A' 2997 2951 13.00      
4 A' 2987 2941 46.39      
5 A' 1680 1655 138.43      
6 A' 1494 1471 2.11      
7 A' 1473 1450 0.25      
8 A' 1447 1425 12.46      
9 A' 1384 1363 24.36      
10 A' 1342 1321 16.62      
11 A' 1302 1282 8.69      
12 A' 1212 1193 98.33      
13 A' 1051 1035 0.97      
14 A' 954 939 89.81      
15 A' 945 931 2.21      
16 A' 920 906 28.87      
17 A' 878 864 26.02      
18 A' 738 726 5.23      
19 A' 651 641 1.14      
20 A' 345 340 6.43      
21 A" 3051 3005 43.75      
22 A" 3051 3004 10.06      
23 A" 3013 2967 7.38      
24 A" 1448 1426 7.71      
25 A" 1224 1205 0.17      
26 A" 1188 1170 2.30      
27 A" 1096 1079 0.05      
28 A" 1039 1024 1.93      
29 A" 814 802 0.18      
30 A" 586 577 3.68      
31 A" 229 226 10.50      
32 A" 119 117 0.52      
33 A" 54 53 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23412.1 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 23053.9 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 B97D3/aug-cc-pVTZ
ABC
0.25714 0.11352 0.08241

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.334 2.135 0.000
C2 0.543 -1.511 0.000
C3 -0.992 -1.293 0.000
N4 -1.167 0.170 0.000
O5 1.088 -0.159 0.000
C6 0.000 0.683 0.000
H7 0.915 -2.023 0.892
H8 0.915 -2.023 -0.892
H9 -1.476 -1.723 0.884
H10 -1.476 -1.723 -0.884
H11 0.932 2.385 0.882
H12 0.932 2.385 -0.882
H13 -0.584 2.721 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.65203.67522.47222.41401.48964.29154.29154.35154.35151.09491.09491.0895
C23.65201.55012.39851.45812.26061.09361.09362.21402.21404.01434.01434.3800
C33.67521.55011.47402.36852.21102.22792.22791.09541.09544.24384.24384.0347
N42.47222.39851.47402.27851.27473.15293.15292.11182.11183.17653.17652.6163
O52.41401.45812.36852.27851.37532.07362.07363.13023.13022.69732.69733.3299
C61.48962.26062.21101.27471.37532.99232.99232.95742.95742.13192.13192.1201
H74.29151.09362.22793.15292.07362.99231.78462.40972.99344.40814.75195.0543
H84.29151.09362.22793.15292.07362.99231.78462.99342.40974.75194.40815.0543
H94.35152.21401.09542.11183.13022.95742.40972.99341.76724.76175.07864.6176
H104.35152.21401.09542.11183.13022.95742.99342.40971.76725.07864.76174.6176
H111.09494.01434.24383.17652.69732.13194.40814.75194.76175.07861.76481.7860
H121.09494.01434.24383.17652.69732.13194.75194.40815.07864.76171.76481.7860
H131.08954.38004.03472.61633.32992.12015.05435.05434.61764.61761.78601.7860

picture of Oxazole, 4,5-dihydro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C6 N4 126.673 C1 C6 O5 114.781
C2 C3 N4 104.931 C2 C3 H9 112.490
C2 C3 H10 112.490 C2 O5 C6 105.813
C3 C2 O5 103.831 C3 C2 H7 113.738
C3 C2 H8 113.738 C3 N4 C6 106.877
N4 C3 H9 109.678 N4 C3 H10 109.678
N4 C6 O5 118.546 O5 C2 H7 107.858
O5 C2 H8 107.858 C6 C1 H11 110.219
C6 C1 H12 110.219 C6 C1 H13 109.599
H7 C2 H8 109.364 H9 C3 H10 107.544
H11 C1 H12 107.397 H11 C1 H13 109.689
H12 C1 H13 109.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.330      
2 C 0.010      
3 C 0.070      
4 N -0.597      
5 O -0.460      
6 C 0.427      
7 H 0.122      
8 H 0.122      
9 H 0.106      
10 H 0.106      
11 H 0.138      
12 H 0.138      
13 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.977 -0.840 0.000 1.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.475 1.864 0.000
y 1.864 -30.192 0.000
z 0.000 0.000 -35.452
Traceless
 xyz
x -8.653 1.864 0.000
y 1.864 8.271 0.000
z 0.000 0.000 0.381
Polar
3z2-r20.763
x2-y2-11.283
xy1.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.302 0.552 0.000
y 0.552 10.888 0.000
z 0.000 0.000 6.998


<r2> (average value of r2) Å2
<r2> 149.642
(<r2>)1/2 12.233