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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-286.497956
Energy at 298.15K-286.506782
Nuclear repulsion energy241.714039
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 B1B95/6-31+G**
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 3201 3062 3.78      
2 A 3149 3012 5.91      
3 A 3141 3005 34.92      
4 A 3105 2970 8.65      
5 A 3087 2953 49.70      
6 A 3078 2945 9.75      
7 A 3070 2936 40.05      
8 A 1773 1696 167.06      
9 A 1530 1463 3.44      
10 A 1502 1437 0.24      
11 A 1476 1412 10.02      
12 A 1475 1411 10.94      
13 A 1423 1361 65.34      
14 A 1380 1320 11.48      
15 A 1340 1282 10.35      
16 A 1262 1207 105.10      
17 A 1247 1192 0.79      
18 A 1218 1166 2.82      
19 A 1119 1071 0.04      
20 A 1094 1047 4.03      
21 A 1056 1010 3.19      
22 A 1047 1002 93.95      
23 A 995 952 1.03      
24 A 958 917 16.82      
25 A 924 883 23.39      
26 A 835 799 0.38      
27 A 755 723 5.27      
28 A 666 637 2.22      
29 A 597 571 4.44      
30 A 347 332 6.74      
31 A 240 229 12.18      
32 A 135 129 0.83      
33 A 25 24 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24124.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 23077.6 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 B1B95/6-31+G**
ABC
0.26023 0.11505 0.08352

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.149 0.007 0.002
C2 1.391 -0.774 0.014
C3 1.424 0.767 -0.010
N4 0.020 1.175 0.009
O5 -0.013 -1.087 -0.015
C6 -0.668 0.107 0.000
H7 1.861 -1.239 -0.855
H8 1.816 -1.206 0.923
H9 1.909 1.163 -0.907
H10 1.945 1.189 0.854
H11 -2.490 -0.535 -0.883
H12 -2.487 -0.550 0.879
H13 -2.581 1.005 0.011

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62473.65222.46382.39941.48404.28494.24684.31594.34531.09261.09261.0878
C23.62471.54192.38331.43852.23971.09171.09242.20672.20613.99073.98014.3523
C33.65221.54191.46162.34542.19322.22072.21781.09401.09354.21604.22154.0118
N42.46382.38331.46162.26261.27083.15663.11962.09892.10213.16583.16602.6071
O52.39941.43852.34542.26261.36202.05892.05863.09053.12532.68252.68533.3123
C61.48402.23972.19321.27081.36202.98972.95732.92882.95412.12432.12482.1133
H74.28491.09172.22073.15662.05892.98971.77872.40362.97064.40754.73155.0513
H84.24681.09242.21783.11962.05862.95731.77872.99512.39994.71754.35335.0053
H94.31592.20671.09402.09893.09052.92882.40362.99511.76114.71535.04514.5858
H104.34532.20611.09352.10213.12532.95412.97062.39991.76115.06554.76164.6076
H111.09263.99074.21603.16582.68252.12434.40754.71754.71535.06551.76251.7828
H121.09263.98014.22153.16602.68532.12484.73154.35335.04514.76161.76251.7830
H131.08784.35234.01182.60713.31232.11335.05135.00534.58584.60761.78281.7830

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 126.678 C1 C6 O5 114.865
C2 C3 N4 104.996 C2 C3 H9 112.568
C2 C3 H10 112.559 C2 O5 C6 106.180
C3 C2 O5 103.741 C3 C2 H7 113.867
C3 C2 H8 113.579 C3 N4 C6 106.566
N4 C3 H9 109.593 N4 C3 H10 109.879
N4 C6 O5 118.457 O5 C2 H7 108.136
O5 C2 H8 108.071 C6 C1 H11 110.142
C6 C1 H12 110.184 C6 C1 H13 109.548
H7 C2 H8 109.050 H9 C3 H10 107.232
H11 C1 H12 107.525 H11 C1 H13 109.696
H12 C1 H13 109.719
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.718      
2 C -0.052      
3 C -0.217      
4 N -0.274      
5 O -0.313      
6 C 0.378      
7 H 0.157      
8 H 0.156      
9 H 0.162      
10 H 0.161      
11 H 0.184      
12 H 0.184      
13 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.805 -1.135 0.002 1.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.268 -0.014 0.003
y -0.014 -41.944 -0.087
z 0.003 -0.087 -35.413
Traceless
 xyz
x 9.411 -0.014 0.003
y -0.014 -9.604 -0.087
z 0.003 -0.087 0.193
Polar
3z2-r20.385
x2-y212.676
xy-0.014
xz0.003
yz-0.087


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.729 0.399 -0.002
y 0.399 8.286 -0.006
z -0.002 -0.006 6.345


<r2> (average value of r2) Å2
<r2> 147.949
(<r2>)1/2 12.163