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

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-284.910997
Energy at 298.15K-284.919699
Nuclear repulsion energy234.876433
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 BLYP/3-21G
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 3099 3082 5.65      
2 A 3011 2995 37.22      
3 A 3001 2985 34.92      
4 A 2993 2977 8.79      
5 A 1618 1609 69.27      
6 A 1531 1522 0.13      
7 A 1512 1503 2.45      
8 A 1499 1491 16.86      
9 A 1415 1408 12.96      
10 A 1310 1303 11.91      
11 A 1280 1273 2.95      
12 A 1177 1171 85.42      
13 A 1040 1034 3.84      
14 A 885 880 27.83      
15 A 876 872 3.15      
16 A 836 832 39.61      
17 A 815 810 39.45      
18 A 710 706 7.86      
19 A 624 620 2.24      
20 A 316 314 4.83      
21 A 3064 3048 45.45      
22 A 3038 3021 8.96      
23 A 3035 3019 1.72      
24 A 1509 1501 9.74      
25 A 1239 1232 0.11      
26 A 1157 1151 0.06      
27 A 1082 1076 3.17      
28 A 1058 1052 1.22      
29 A 807 803 0.00      
30 A 547 544 3.32      
31 A 224 223 12.07      
32 A 129 129 1.49      
33 A 118 117 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 23278.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 23150.0 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 BLYP/3-21G
ABC
0.24509 0.10888 0.07882

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.369 2.166 0.000
C2 0.527 -1.566 0.000
C3 -1.030 -1.314 0.000
N4 -1.192 0.206 0.000
O5 1.127 -0.171 0.000
C6 0.000 0.707 0.000
H7 0.881 -2.081 0.904
H8 0.881 -2.081 -0.904
H9 -1.519 -1.722 0.897
H10 -1.519 -1.722 -0.897
H11 0.975 2.401 0.890
H12 0.975 2.401 -0.890
H13 -0.546 2.770 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.73513.75092.50562.45711.50514.37264.37264.41464.41461.10241.10241.0969
C23.73511.57752.46861.51762.33311.09891.09892.23942.23944.08964.08964.4667
C33.75091.57751.52872.44062.26842.24872.24871.10001.10004.31434.31434.1127
N42.50562.46861.52872.34871.29263.21633.21632.15182.15183.21013.21012.6440
O52.45711.51762.44062.34871.42852.12722.12723.19483.19482.72592.72593.3839
C61.50512.33312.26841.29261.42853.06073.06073.00213.00212.14772.14772.1342
H74.37261.09892.24873.21632.12723.06071.80732.42623.02134.48304.82865.1372
H84.37261.09892.24873.21632.12723.06071.80733.02132.42624.82864.48305.1372
H94.41462.23941.10002.15183.19483.00212.42623.02131.79394.81865.13944.6832
H104.41462.23941.10002.15183.19483.00213.02132.42621.79395.13944.81864.6832
H111.10244.08964.31433.21012.72592.14774.48304.82864.81865.13941.78081.8014
H121.10244.08964.31433.21012.72592.14774.82864.48305.13944.81861.78081.8014
H131.09694.46674.11272.64403.38392.13425.13725.13724.68324.68321.80141.8014

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 127.003 C1 C6 O5 113.740
C2 C3 N4 105.249 C2 C3 H9 112.291
C2 C3 H10 112.291 C2 O5 C6 104.687
C3 C2 O5 104.077 C3 C2 H7 113.105
C3 C2 H8 113.105 C3 N4 C6 106.730
N4 C3 H9 108.793 N4 C3 H10 108.793
N4 C6 O5 119.257 O5 C2 H7 107.708
O5 C2 H8 107.708 C6 C1 H11 109.947
C6 C1 H12 109.947 C6 C1 H13 109.210
H7 C2 H8 110.642 H9 C3 H10 109.256
H11 C1 H12 107.745 H11 C1 H13 109.989
H12 C1 H13 109.989
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 C -0.182      
3 C -0.286      
4 N -0.443      
5 O -0.427      
6 C 0.474      
7 H 0.198      
8 H 0.198      
9 H 0.203      
10 H 0.203      
11 H 0.211      
12 H 0.211      
13 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.679 -1.039 0.000 1.242
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.916 2.098 0.000
y 2.098 -29.134 0.000
z 0.000 0.000 -35.342
Traceless
 xyz
x -8.678 2.098 0.000
y 2.098 8.995 0.000
z 0.000 0.000 -0.317
Polar
3z2-r2-0.634
x2-y2-11.782
xy2.098
xz0.000
yz0.000


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> 154.628
(<r2>)1/2 12.435