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

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-285.921128
Energy at 298.15K-285.930150
HF Energy-284.907405
Nuclear repulsion energy241.391110
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 MP2=FULL/6-311G*
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 3224 3053 3.83      
2 A 3187 3019 31.73      
3 A 3178 3010 7.28      
4 A 3160 2993 13.88      
5 A 3106 2942 40.95      
6 A 3099 2935 31.76      
7 A 3098 2934 12.49      
8 A 1739 1647 96.41      
9 A 1563 1480 3.08      
10 A 1540 1458 0.74      
11 A 1517 1437 11.71      
12 A 1512 1432 11.80      
13 A 1451 1374 47.00      
14 A 1406 1332 7.12      
15 A 1363 1291 10.69      
16 A 1280 1212 67.28      
17 A 1269 1201 43.99      
18 A 1245 1179 2.64      
19 A 1142 1082 0.21      
20 A 1102 1043 2.11      
21 A 1080 1022 2.77      
22 A 1044 989 75.05      
23 A 1001 948 2.28      
24 A 977 925 28.37      
25 A 928 879 22.91      
26 A 870 824 5.12      
27 A 725 687 3.65      
28 A 670 635 3.18      
29 A 594 562 3.73      
30 A 352 334 5.61      
31 A 241 228 10.76      
32 A 145 137 1.37      
33 A 104 99 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 24454.7 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 23161.0 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 MP2=FULL/6-311G*
ABC
0.25856 0.11503 0.08362

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.148 0.009 0.013
C2 -1.383 -0.773 0.083
C3 -1.430 0.758 -0.061
N4 -0.025 1.184 0.052
O5 0.015 -1.090 -0.088
C6 0.664 0.109 0.001
H7 -1.685 -1.109 1.079
H8 -1.949 -1.315 -0.674
H9 -2.032 1.237 0.714
H10 -1.816 1.075 -1.035
H11 2.477 -0.587 0.866
H12 2.492 -0.493 -0.894
H13 2.579 1.006 0.068

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.61713.65632.47002.40131.48764.13264.35944.41194.23571.09191.09211.0878
C23.61711.53802.38191.44392.23011.09341.08982.20332.20243.94354.00664.3429
C33.65631.53801.47302.34602.19302.20222.22281.09141.09444.23544.20074.0187
N42.47002.38191.47302.27811.27713.01143.23592.11392.09783.17163.16882.6094
O52.40131.44392.34602.27811.36602.06232.06153.20062.98892.68822.67263.3152
C61.48762.23012.19301.27711.36602.85703.05083.00722.85532.12672.12322.1159
H74.13261.09342.20223.01142.06232.85701.78462.39893.04214.20064.66094.8659
H84.35941.08982.22283.23592.06153.05081.78462.90582.42044.74254.52175.1415
H94.41192.20331.09142.11393.20063.00722.39892.90581.76974.86625.10324.6609
H104.23572.20241.09442.09782.98892.85533.04212.42041.76974.98064.58664.5311
H111.09193.94354.23543.17162.68822.12674.20064.74254.86624.98061.76251.7849
H121.09214.00664.20073.16882.67262.12324.66094.52175.10324.58661.76251.7836
H131.08784.34294.01872.60943.31522.11594.86595.14154.66094.53111.78491.7836

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 126.442 C1 C6 O5 114.529
C2 C3 N4 104.551 C2 C3 H9 112.747
C2 C3 H10 112.487 C2 O5 C6 105.020
C3 C2 O5 103.718 C3 C2 H7 112.531
C3 C2 H8 114.463 C3 N4 C6 105.547
N4 C3 H9 110.152 N4 C3 H10 108.690
N4 C6 O5 119.025 O5 C2 H7 107.937
O5 C2 H8 108.090 C6 C1 H11 110.125
C6 C1 H12 109.836 C6 C1 H13 109.506
H7 C2 H8 109.661 H9 C3 H10 108.121
H11 C1 H12 107.606 H11 C1 H13 109.941
H12 C1 H13 109.804
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.660      
2 C -0.191      
3 C -0.328      
4 N -0.431      
5 O -0.452      
6 C 0.482      
7 H 0.214      
8 H 0.215      
9 H 0.216      
10 H 0.217      
11 H 0.234      
12 H 0.235      
13 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.811 -1.171 0.039 1.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.371 0.187 -0.058
y 0.187 -42.395 -0.514
z -0.058 -0.514 -35.505
Traceless
 xyz
x 9.578 0.187 -0.058
y 0.187 -9.957 -0.514
z -0.058 -0.514 0.379
Polar
3z2-r20.757
x2-y213.024
xy0.187
xz-0.058
yz-0.514


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> 148.468
(<r2>)1/2 12.185