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: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-286.499957
Energy at 298.15K-286.508731
HF Energy-286.499957
Nuclear repulsion energy239.842581
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 B97D3/6-311G**
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' 3111 3067 9.14      
2 A' 3002 2960 63.50      
3 A' 2995 2953 14.78      
4 A' 2984 2941 54.93      
5 A' 1691 1666 130.04      
6 A' 1497 1475 1.98      
7 A' 1473 1452 0.26      
8 A' 1452 1431 11.32      
9 A' 1384 1364 30.43      
10 A' 1341 1322 14.42      
11 A' 1301 1282 10.87      
12 A' 1213 1196 94.34      
13 A' 1053 1038 1.10      
14 A' 957 943 89.85      
15 A' 948 934 4.06      
16 A' 919 906 27.95      
17 A' 879 867 23.28      
18 A' 740 730 5.33      
19 A' 652 643 1.62      
20 A' 342 337 5.66      
21 A" 3052 3009 17.80      
22 A" 3051 3007 53.57      
23 A" 3011 2968 11.00      
24 A" 1448 1428 9.17      
25 A" 1219 1201 0.09      
26 A" 1187 1170 1.74      
27 A" 1093 1078 0.00      
28 A" 1039 1024 2.39      
29 A" 812 801 0.16      
30 A" 579 571 3.85      
31 A" 227 224 10.33      
32 A" 123 121 0.99      
33 A" 65 64 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23420.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 23085.4 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 B97D3/6-311G**
ABC
0.25567 0.11346 0.08224

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.337 2.135 0.000
C2 0.545 -1.513 0.000
C3 -0.994 -1.292 0.000
N4 -1.172 0.174 0.000
O5 1.089 -0.160 0.000
C6 0.000 0.681 0.000
H7 0.917 -2.026 0.894
H8 0.917 -2.026 -0.894
H9 -1.480 -1.723 0.885
H10 -1.480 -1.723 -0.885
H11 0.936 2.384 0.884
H12 0.936 2.384 -0.884
H13 -0.584 2.722 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.65383.67662.47462.41511.49284.29534.29534.35514.35511.09691.09691.0915
C23.65381.55452.40601.45872.26021.09581.09582.21962.21964.01494.01494.3824
C33.67661.55451.47622.37152.20932.23382.23381.09781.09784.24524.24524.0351
N42.47462.40601.47622.28551.27683.16203.16202.11522.11523.17993.17992.6155
O52.41511.45872.37152.28551.37602.07642.07643.13513.13512.69732.69733.3321
C61.49282.26022.20931.27681.37602.99432.99432.95822.95822.13522.13522.1229
H74.29531.09582.23383.16202.07642.99431.78762.41603.00044.40994.75485.0589
H84.29531.09582.23383.16202.07642.99431.78763.00042.41604.75484.40995.0589
H94.35512.21961.09782.11523.13512.95822.41603.00041.77074.76475.08274.6198
H104.35512.21961.09782.11523.13512.95823.00042.41601.77075.08274.76474.6198
H111.09694.01494.24523.17992.69732.13524.40994.75484.76475.08271.76851.7905
H121.09694.01494.24523.17992.69732.13524.75484.40995.08274.76471.76851.7905
H131.09154.38244.03512.61553.33212.12295.05895.05894.61984.61981.79051.7905

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 126.636 C1 C6 O5 114.830
C2 C3 N4 104.991 C2 C3 H9 112.475
C2 C3 H10 112.475 C2 O5 C6 106.063
C3 C2 O5 103.704 C3 C2 H7 113.695
C3 C2 H8 113.695 C3 N4 C6 106.708
N4 C3 H9 109.736 N4 C3 H10 109.736
N4 C6 O5 118.534 O5 C2 H7 108.102
O5 C2 H8 108.102 C6 C1 H11 110.134
C6 C1 H12 110.134 C6 C1 H13 109.564
H7 C2 H8 109.140 H9 C3 H10 107.411
H11 C1 H12 107.468 H11 C1 H13 109.757
H12 C1 H13 109.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.259      
2 C -0.039      
3 C -0.146      
4 N -0.326      
5 O -0.328      
6 C 0.218      
7 H 0.120      
8 H 0.120      
9 H 0.121      
10 H 0.121      
11 H 0.130      
12 H 0.130      
13 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.920 -0.914 0.000 1.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.995 1.769 0.000
y 1.769 -29.854 0.000
z 0.000 0.000 -35.182
Traceless
 xyz
x -8.477 1.769 0.000
y 1.769 8.234 0.000
z 0.000 0.000 0.243
Polar
3z2-r20.485
x2-y2-11.141
xy1.769
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.978 0.679 0.000
y 0.679 9.794 0.000
z 0.000 0.000 6.032


<r2> (average value of r2) Å2
<r2> 149.670
(<r2>)1/2 12.234