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All results from a given calculation for C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-286.274289
Energy at 298.15K-286.283076
Nuclear repulsion energy239.855426
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 PBEPBE/6-31G(2df,p)
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 3116 3084 3.52      
2 A 2993 2962 10.07      
3 A 2983 2952 50.59      
4 A 2970 2939 42.04      
5 A 1690 1672 117.30      
6 A 1474 1458 1.86      
7 A 1448 1433 0.27      
8 A 1426 1412 8.73      
9 A 1364 1350 46.86      
10 A 1330 1316 9.74      
11 A 1287 1273 11.89      
12 A 1213 1200 78.81      
13 A 1050 1039 3.29      
14 A 984 974 82.23      
15 A 954 944 1.52      
16 A 926 916 17.88      
17 A 887 878 17.68      
18 A 736 728 4.68      
19 A 653 646 1.99      
20 A 336 333 5.14      
21 A 3057 3026 5.86      
22 A 3031 3000 40.20      
23 A 2999 2968 4.50      
24 A 1424 1409 7.72      
25 A 1205 1192 0.07      
26 A 1175 1163 1.40      
27 A 1082 1071 0.00      
28 A 1021 1011 3.26      
29 A 802 793 0.08      
30 A 580 574 3.57      
31 A 231 228 9.11      
32 A 132 131 0.68      
33 A 78 77 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23316.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 23076.0 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 PBEPBE/6-31G(2df,p)
ABC
0.25494 0.11382 0.08237

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.334 2.132 0.000
C2 0.548 -1.504 0.000
C3 -0.991 -1.291 0.000
N4 -1.177 0.170 0.000
O5 1.090 -0.157 0.000
C6 0.000 0.678 0.000
H7 0.924 -2.026 0.896
H8 0.924 -2.026 -0.896
H9 -1.479 -1.732 0.887
H10 -1.479 -1.732 -0.887
H11 0.937 2.388 0.887
H12 0.937 2.388 -0.887
H13 -0.591 2.721 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.64253.67082.47692.41101.49214.29394.29394.35934.35931.10201.10201.0967
C23.64251.55382.40361.45152.24981.10251.10252.22402.22404.01064.01064.3762
C33.67081.55381.47252.36962.20442.23802.23801.10391.10394.24714.24714.0323
N42.47692.40361.47252.29021.28213.16783.16782.11972.11973.18983.18982.6181
O52.41101.45152.36962.29021.37312.07852.07853.14043.14042.69972.69973.3334
C61.49212.24982.20441.28211.37312.99422.99422.96322.96322.14182.14182.1271
H74.29391.10252.23803.16782.07852.99421.79152.42043.00604.41364.75995.0626
H84.29391.10252.23803.16782.07852.99421.79153.00602.42044.75994.41365.0626
H94.35932.22401.10392.11973.14042.96322.42043.00601.77394.77575.09434.6266
H104.35932.22401.10392.11973.14042.96323.00602.42041.77395.09434.77574.6266
H111.10204.01064.24713.18982.69972.14184.41364.75994.77575.09431.77301.7974
H121.10204.01064.24713.18982.69972.14184.75994.41365.09434.77571.77301.7974
H131.09674.37624.03232.61813.33342.12715.06265.06264.62664.62661.79741.7974

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 126.299 C1 C6 O5 114.533
C2 C3 N4 105.131 C2 C3 H9 112.508
C2 C3 H10 112.508 C2 O5 C6 105.562
C3 C2 O5 104.035 C3 C2 H7 113.728
C3 C2 H8 113.728 C3 N4 C6 106.104
N4 C3 H9 109.893 N4 C3 H10 109.893
N4 C6 O5 119.168 O5 C2 H7 108.164
O5 C2 H8 108.164 C6 C1 H11 110.407
C6 C1 H12 110.407 C6 C1 H13 109.553
H7 C2 H8 108.671 H9 C3 H10 106.922
H11 C1 H12 107.112 H11 C1 H13 109.664
H12 C1 H13 109.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.506      
2 C -0.142      
3 C -0.208      
4 N -0.309      
5 O -0.220      
6 C 0.409      
7 H 0.126      
8 H 0.126      
9 H 0.125      
10 H 0.125      
11 H 0.155      
12 H 0.155      
13 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.007 -0.713 0.000 1.234
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.057 1.653 0.000
y 1.653 -29.885 0.000
z 0.000 0.000 -34.783
Traceless
 xyz
x -7.723 1.653 0.000
y 1.653 7.534 0.000
z 0.000 0.000 0.188
Polar
3z2-r20.377
x2-y2-10.171
xy1.653
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.748 0.667 0.000
y 0.667 9.639 0.000
z 0.000 0.000 5.949


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000