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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-286.391332
Energy at 298.15K-286.384327
Nuclear repulsion energy 
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 B3LYP/6-31G*
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 3178 3052 6.12      
2 A 3075 2953 50.27      
3 A 3065 2943 10.27      
4 A 3056 2935 46.53      
5 A 1756 1686 136.54      
6 A 1556 1494 0.87      
7 A 1532 1471 0.43      
8 A 1507 1448 9.29      
9 A 1442 1384 30.19      
10 A 1395 1339 16.88      
11 A 1353 1299 16.19      
12 A 1261 1210 107.01      
13 A 1092 1049 1.45      
14 A 1020 979 92.99      
15 A 986 947 2.43      
16 A 952 914 23.18      
17 A 913 876 18.12      
18 A 759 729 5.43      
19 A 662 636 2.38      
20 A 348 334 5.60      
21 A 3121 2997 29.48      
22 A 3121 2997 29.61      
23 A 3083 2961 9.66      
24 A 1505 1445 8.39      
25 A 1260 1210 0.07      
26 A 1226 1177 1.47      
27 A 1133 1088 0.01      
28 A 1077 1035 3.82      
29 A 838 805 0.34      
30 A 595 571 6.02      
31 A 237 228 9.83      
32 A 141 135 1.03      
33 A 82 79 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24162.1 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 23202.9 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 B3LYP/6-31G*
ABC
0.25738 0.11393 0.08264

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.339 2.132 0.000
C2 0.545 -1.506 0.000
C3 -0.992 -1.288 0.000
N4 -1.169 0.172 0.000
O5 1.082 -0.162 0.000
C6 0.000 0.678 0.000
H7 0.916 -2.023 0.890
H8 0.916 -2.023 -0.890
H9 -1.477 -1.722 0.883
H10 -1.477 -1.722 -0.883
H11 0.937 2.383 0.883
H12 0.937 2.383 -0.883
H13 -0.579 2.722 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.64403.67022.47272.41171.49274.28814.28814.35054.35051.09571.09571.0906
C23.64401.55242.39831.44732.25131.09441.09442.21682.21684.00714.00714.3747
C33.67021.55241.47082.36042.20282.23042.23041.09641.09644.24024.24024.0315
N42.47272.39831.47082.27551.27373.15523.15522.11172.11173.17843.17842.6174
O52.41171.44732.36042.27551.37022.06922.06923.12433.12432.69762.69763.3281
C61.49272.25132.20281.27371.37022.98792.98792.95312.95312.13612.13612.1239
H74.28811.09442.23043.15522.06922.98791.78102.41242.99394.40544.74895.0535
H84.28811.09442.23043.15522.06922.98791.78102.99392.41244.74894.40545.0535
H94.35052.21681.09642.11173.12432.95312.41242.99391.76544.76185.07864.6185
H104.35052.21681.09642.11173.12432.95312.99392.41241.76545.07864.76184.6185
H111.09574.00714.24023.17842.69762.13614.40544.74894.76185.07861.76561.7868
H121.09574.00714.24023.17842.69762.13614.74894.40545.07864.76181.76561.7868
H131.09064.37474.03152.61743.32812.12395.05355.05354.61854.61851.78681.7868

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 126.544 C1 C6 O5 114.723
C2 C3 N4 104.951 C2 C3 H9 112.492
C2 C3 H10 112.492 C2 O5 C6 106.045
C3 C2 O5 103.730 C3 C2 H7 113.718
C3 C2 H8 113.718 C3 N4 C6 106.542
N4 C3 H9 109.829 N4 C3 H10 109.829
N4 C6 O5 118.733 O5 C2 H7 108.194
O5 C2 H8 108.194 C6 C1 H11 110.292
C6 C1 H12 110.292 C6 C1 H13 109.625
H7 C2 H8 108.913 H9 C3 H10 107.244
H11 C1 H12 107.360 H11 C1 H13 109.620
H12 C1 H13 109.620
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.512 0.046   0.064
2 C -0.058 0.046   0.064
3 C -0.182 0.034   0.010
4 N -0.443 -0.021   0.027
5 O -0.480 -0.021   0.027
6 C 0.516 0.340   0.192
7 H 0.155 -0.670   -0.658
8 H 0.155 -0.393   -0.399
9 H 0.156 0.725   0.802
10 H 0.156 0.138   0.180
11 H 0.176 0.141   0.181
12 H 0.176 0.138   0.180
13 H 0.186 -0.504   -0.671


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.945 -0.893 0.000 1.300
CHELPG -0.769 -1.058 0.000 1.308
AIM        
ESP -0.795 -1.080 0.001 1.341


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 148.907
(<r2>)1/2 12.203