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

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-286.436559
Energy at 298.15K-286.445548
Nuclear repulsion energy238.898047
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 mPW1PW91/6-31G
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 3222 3050 4.06      
2 A 3129 2962 32.71      
3 A 3109 2943 32.20      
4 A 3094 2929 7.41      
5 A 1754 1660 121.89      
6 A 1568 1484 2.74      
7 A 1549 1466 1.19      
8 A 1526 1445 14.00      
9 A 1467 1389 25.58      
10 A 1392 1318 16.00      
11 A 1358 1286 0.44      
12 A 1277 1209 114.48      
13 A 1105 1046 0.36      
14 A 984 931 29.03      
15 A 976 924 29.44      
16 A 945 894 44.26      
17 A 897 849 24.09      
18 A 761 720 8.32      
19 A 671 635 3.86      
20 A 348 329 8.03      
21 A 3194 3023 32.23      
22 A 3168 2999 6.45      
23 A 3155 2986 6.59      
24 A 1526 1444 13.78      
25 A 1276 1208 0.13      
26 A 1218 1153 0.69      
27 A 1138 1078 0.57      
28 A 1103 1044 6.04      
29 A 854 809 0.02      
30 A 591 560 6.97      
31 A 243 230 16.04      
32 A 137 130 1.60      
33 A 108 102 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 24419.7 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 23115.7 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 mPW1PW91/6-31G
ABC
0.25554 0.11205 0.08146

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.336 2.142 0.000
C2 0.538 -1.531 0.000
C3 -0.995 -1.301 0.000
N4 -1.169 0.176 0.000
O5 1.096 -0.163 0.000
C6 0.000 0.702 0.000
H7 0.906 -2.038 0.892
H8 0.906 -2.038 -0.892
H9 -1.482 -1.720 0.883
H10 -1.482 -1.720 -0.883
H11 0.932 2.394 0.881
H12 0.932 2.394 -0.881
H13 -0.580 2.730 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.67903.69172.47572.42781.47844.31234.31234.35894.35891.09331.09331.0883
C23.67901.55012.41421.47742.29761.08981.08982.21272.21274.04194.04194.4055
C33.69171.55011.48762.38082.23722.22522.22521.09211.09214.25954.25954.0526
N42.47572.41421.48762.29041.28183.16273.16272.11492.11493.17943.17942.6209
O52.42781.47742.38082.29041.39712.08482.08483.13853.13852.70972.70973.3440
C61.47842.29762.23721.28181.39713.02113.02112.97392.97392.12272.12272.1089
H74.31231.08982.22523.16272.08483.02111.78382.40892.99244.43204.77345.0734
H84.31231.08982.22523.16272.08483.02111.78382.99242.40894.77344.43205.0734
H94.35892.21271.09212.11493.13852.97392.40892.99241.76674.76975.08564.6254
H104.35892.21271.09212.11493.13852.97392.99242.40891.76675.08564.76974.6254
H111.09334.04194.25953.17942.70972.12274.43204.77344.76975.08561.76201.7823
H121.09334.04194.25953.17942.70972.12274.77344.43205.08564.76971.76201.7823
H131.08834.40554.05262.62093.34402.10895.07345.07344.62544.62541.78231.7823

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 127.375 C1 C6 O5 115.171
C2 C3 N4 105.244 C2 C3 H9 112.590
C2 C3 H10 112.590 C2 O5 C6 106.097
C3 C2 O5 103.672 C3 C2 H7 113.752
C3 C2 H8 113.752 C3 N4 C6 107.533
N4 C3 H9 109.178 N4 C3 H10 109.178
N4 C6 O5 117.454 O5 C2 H7 107.643
O5 C2 H8 107.643 C6 C1 H11 110.367
C6 C1 H12 110.367 C6 C1 H13 109.563
H7 C2 H8 109.846 H9 C3 H10 107.970
H11 C1 H12 107.383 H11 C1 H13 109.565
H12 C1 H13 109.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.521      
2 C -0.100      
3 C -0.264      
4 N -0.375      
5 O -0.526      
6 C 0.398      
7 H 0.193      
8 H 0.193      
9 H 0.197      
10 H 0.197      
11 H 0.201      
12 H 0.201      
13 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.705 -1.179 0.000 1.373
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.877 2.186 0.000
y 2.186 -28.142 0.000
z 0.000 0.000 -35.086
Traceless
 xyz
x -10.263 2.186 0.000
y 2.186 10.340 0.000
z 0.000 0.000 -0.077
Polar
3z2-r2-0.153
x2-y2-13.735
xy2.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.289 0.682 0.000
y 0.682 8.709 0.000
z 0.000 0.000 5.301


<r2> (average value of r2) Å2
<r2> 150.516
(<r2>)1/2 12.269