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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-52.681653
Energy at 298.15K-52.690446
Nuclear repulsion energy129.094279
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/CEP-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 3176 3067 14.32      
2 A 3071 2965 72.31      
3 A 3065 2960 16.03      
4 A 3052 2948 54.46      
5 A 1733 1674 155.05      
6 A 1524 1471 2.39      
7 A 1498 1446 0.09      
8 A 1478 1428 10.09      
9 A 1418 1369 37.83      
10 A 1371 1324 11.22      
11 A 1334 1288 14.75      
12 A 1237 1195 114.93      
13 A 1077 1040 2.39      
14 A 1008 973 96.16      
15 A 973 939 0.37      
16 A 940 908 25.77      
17 A 899 868 22.35      
18 A 743 718 5.78      
19 A 650 628 2.74      
20 A 338 327 6.11      
21 A 3126 3019 24.74      
22 A 3124 3017 66.64      
23 A 3086 2980 11.47      
24 A 1476 1425 10.68      
25 A 1235 1193 0.02      
26 A 1204 1162 1.29      
27 A 1105 1067 0.04      
28 A 1052 1016 3.58      
29 A 813 785 0.01      
30 A 581 561 4.29      
31 A 233 225 12.98      
32 A 133 128 0.96      
33 A 67 64 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 23908.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 23088.1 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/CEP-31G*
ABC
0.25254 0.11166 0.08102

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.380 2.151 0.000
C2 0.506 -1.529 0.000
C3 -1.041 -1.279 0.000
N4 -1.190 0.197 0.000
O5 1.076 -0.184 0.000
C6 0.000 0.684 0.000
H7 0.870 -2.053 0.899
H8 0.870 -2.053 -0.899
H9 -1.535 -1.704 0.891
H10 -1.535 -1.704 -0.891
H11 0.988 2.381 0.891
H12 0.988 2.381 -0.891
H13 -0.532 2.764 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.68243.71242.50662.43631.51474.32654.32654.39494.39491.10341.10341.0990
C23.68241.56692.42051.46122.27101.10211.10212.23362.23364.03974.03974.4172
C33.71241.56691.48362.38312.22232.24902.24901.10371.10374.27874.27874.0750
N42.50662.42051.48362.29821.28653.18053.18052.12712.12713.21113.21112.6502
O52.43631.46122.38312.29821.38272.08402.08403.14943.14942.71702.71703.3581
C61.51472.27102.22231.28651.38273.00963.00962.97532.97532.15622.15622.1466
H74.32651.10212.24903.18052.08403.00961.79792.43013.01824.43554.78315.0967
H84.32651.10212.24903.18052.08403.00961.79793.01822.43014.78314.43555.0967
H94.39492.23361.10372.12713.14942.97532.43013.01821.78214.80095.12114.6646
H104.39492.23361.10372.12713.14942.97533.01822.43011.78215.12114.80094.6646
H111.10344.03974.27873.21112.71702.15624.43554.78314.80095.12111.78271.8034
H121.10344.03974.27873.21112.71702.15624.78314.43555.12114.80091.78271.8034
H131.09904.41724.07502.65023.35812.14665.09675.09674.66464.66461.80341.8034

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 126.790 C1 C6 O5 114.390
C2 C3 N4 104.989 C2 C3 H9 112.358
C2 C3 H10 112.358 C2 O5 C6 105.954
C3 C2 O5 103.763 C3 C2 H7 113.705
C3 C2 H8 113.705 C3 N4 C6 106.474
N4 C3 H9 109.720 N4 C3 H10 109.720
N4 C6 O5 118.820 O5 C2 H7 107.963
O5 C2 H8 107.963 C6 C1 H11 109.893
C6 C1 H12 109.893 C6 C1 H13 109.399
H7 C2 H8 109.307 H9 C3 H10 107.669
H11 C1 H12 107.763 H11 C1 H13 109.937
H12 C1 H13 109.937
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.331      
2 C -0.151      
3 C -0.252      
4 N 0.175      
5 O -0.138      
6 C -0.458      
7 H 0.170      
8 H 0.170      
9 H 0.163      
10 H 0.163      
11 H 0.155      
12 H 0.155      
13 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.931 -1.016 0.000 1.378
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.028 2.173 0.000
y 2.173 -29.088 0.000
z 0.000 0.000 -34.684
Traceless
 xyz
x -9.142 2.173 0.000
y 2.173 8.768 0.000
z 0.000 0.000 0.374
Polar
3z2-r20.749
x2-y2-11.940
xy2.173
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.664 0.707 0.000
y 0.707 9.087 0.000
z 0.000 0.000 5.416


<r2> (average value of r2) Å2
<r2> 124.925
(<r2>)1/2 11.177