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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-286.543088
Energy at 298.15K-286.552052
Nuclear repulsion energy241.767740
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 3215 3059 3.67      
2 A 3094 2944 49.54      
3 A 3090 2940 6.96      
4 A 3077 2928 42.71      
5 A 1789 1702 148.11      
6 A 1546 1471 2.39      
7 A 1518 1444 0.08      
8 A 1492 1419 8.48      
9 A 1439 1369 62.95      
10 A 1395 1328 8.66      
11 A 1352 1287 12.85      
12 A 1276 1214 100.40      
13 A 1106 1052 4.02      
14 A 1060 1008 91.71      
15 A 1005 956 1.19      
16 A 966 919 18.09      
17 A 932 887 17.84      
18 A 768 731 5.62      
19 A 674 641 2.73      
20 A 350 333 6.08      
21 A 3161 3008 6.52      
22 A 3147 2994 41.71      
23 A 3113 2962 7.05      
24 A 1490 1417 9.57      
25 A 1259 1198 0.04      
26 A 1231 1171 1.41      
27 A 1129 1074 0.00      
28 A 1068 1016 4.47      
29 A 839 799 0.19      
30 A 600 571 5.73      
31 A 240 228 10.82      
32 A 142 136 1.07      
33 A 76 73 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24318.7 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 23139.2 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
0.25981 0.11527 0.08358

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 0.334 2.121 0.000
C2 0.546 -1.494 0.000
C3 -0.984 -1.282 0.000
N4 -1.165 0.168 0.000
O5 1.076 -0.159 0.000
C6 0.000 0.674 0.000
H7 0.916 -2.011 0.889
H8 0.916 -2.011 -0.889
H9 -1.467 -1.717 0.880
H10 -1.467 -1.717 -0.880
H11 0.931 2.370 0.881
H12 0.931 2.370 -0.881
H13 -0.583 2.706 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62143.64922.46182.39821.48524.26664.26664.33014.33011.09271.09271.0878
C23.62141.54462.38491.43622.23551.09271.09272.20802.20803.98153.98154.3495
C33.64921.54461.46082.34602.18942.22092.22091.09441.09444.21614.21614.0082
N42.46182.38491.46082.26441.27003.14123.14122.10232.10233.16463.16462.6042
O52.39821.43622.34602.26441.36082.06012.06013.10933.10932.68192.68193.3113
C61.48522.23552.18941.27001.36082.97282.97282.94012.94012.12552.12552.1145
H74.26661.09272.22093.14122.06012.97281.77712.40102.98234.38084.72465.0290
H84.26661.09272.22093.14122.06012.97281.77712.98232.40104.72464.38085.0290
H94.33012.20801.09442.10233.10932.94012.40102.98231.76084.73835.05504.5960
H104.33012.20801.09442.10233.10932.94012.98232.40101.76085.05504.73834.5960
H111.09273.98154.21613.16462.68192.12554.38084.72464.73835.05501.76161.7836
H121.09273.98154.21613.16462.68192.12554.72464.38085.05504.73831.76161.7836
H131.08784.34954.00822.60423.31132.11455.02905.02904.59604.59601.78361.7836

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 126.463 C1 C6 O5 114.774
C2 C3 N4 105.000 C2 C3 H9 112.469
C2 C3 H10 112.469 C2 O5 C6 106.092
C3 C2 O5 103.764 C3 C2 H7 113.626
C3 C2 H8 113.626 C3 N4 C6 106.379
N4 C3 H9 109.896 N4 C3 H10 109.896
N4 C6 O5 118.764 O5 C2 H7 108.336
O5 C2 H8 108.336 C6 C1 H11 110.147
C6 C1 H12 110.147 C6 C1 H13 109.563
H7 C2 H8 108.814 H9 C3 H10 107.116
H11 C1 H12 107.430 H11 C1 H13 109.764
H12 C1 H13 109.764
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.449      
2 C -0.022      
3 C -0.153      
4 N -0.468      
5 O -0.497      
6 C 0.509      
7 H 0.143      
8 H 0.143      
9 H 0.147      
10 H 0.147      
11 H 0.164      
12 H 0.164      
13 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.994 -0.889 0.000 1.333
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.411 1.802 0.000
y 1.802 -29.087 0.000
z 0.000 0.000 -34.790
Traceless
 xyz
x -8.472 1.802 0.000
y 1.802 8.513 0.000
z 0.000 0.000 -0.041
Polar
3z2-r2-0.082
x2-y2-11.324
xy1.802
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> 147.383
(<r2>)1/2 12.140