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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-286.534130
Energy at 298.15K-286.543091
Nuclear repulsion energy241.739038
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 3216 3050 4.17      
2 A 3103 2943 48.18      
3 A 3094 2934 8.32      
4 A 3085 2925 43.60      
5 A 1790 1698 147.03      
6 A 1562 1481 1.89      
7 A 1535 1456 0.12      
8 A 1510 1432 9.34      
9 A 1450 1375 54.18      
10 A 1406 1334 12.33      
11 A 1363 1292 13.65      
12 A 1282 1216 105.24      
13 A 1111 1054 3.36      
14 A 1062 1007 91.87      
15 A 1008 956 1.12      
16 A 971 921 19.49      
17 A 934 886 18.03      
18 A 769 729 5.61      
19 A 674 639 2.74      
20 A 351 332 5.94      
21 A 3162 2998 7.11      
22 A 3155 2991 43.09      
23 A 3118 2957 8.07      
24 A 1507 1429 9.95      
25 A 1269 1203 0.04      
26 A 1238 1174 1.43      
27 A 1138 1079 0.01      
28 A 1079 1023 4.51      
29 A 843 800 0.23      
30 A 601 570 5.79      
31 A 240 228 10.71      
32 A 142 135 1.06      
33 A 78 74 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24422.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 23160.0 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 mPW1PW91/6-31G*
ABC
0.25973 0.11524 0.08356

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 -0.985 -1.282 0.000
N4 -1.165 0.167 0.000
O5 1.076 -0.160 0.000
C6 0.000 0.673 0.000
H7 0.917 -2.010 0.889
H8 0.917 -2.010 -0.889
H9 -1.468 -1.716 0.881
H10 -1.468 -1.716 -0.881
H11 0.931 2.371 0.882
H12 0.931 2.371 -0.882
H13 -0.583 2.708 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62173.64982.46262.39881.48614.26594.26594.33034.33031.09371.09371.0889
C23.62171.54482.38481.43572.23521.09291.09292.20912.20913.98363.98364.3510
C33.64981.54481.46072.34602.18922.22212.22211.09491.09494.21844.21844.0099
N42.46262.38481.46072.26441.27003.14123.14122.10182.10183.16673.16672.6060
O52.39881.43572.34602.26441.36072.05862.05863.10953.10952.68442.68443.3131
C61.48612.23522.18921.27001.36072.97182.97182.93972.93972.12792.12792.1165
H74.26591.09292.22213.14122.05862.97181.77802.40332.98484.38144.72565.0299
H84.26591.09292.22213.14122.05862.97181.77802.98482.40334.72564.38145.0299
H94.33032.20911.09492.10183.10952.93972.40332.98481.76234.73985.05704.5970
H104.33032.20911.09492.10183.10952.93972.98482.40331.76235.05704.73984.5970
H111.09373.98364.21843.16672.68442.12794.38144.72564.73985.05701.76311.7844
H121.09373.98364.21843.16672.68442.12794.72564.38145.05704.73981.76311.7844
H131.08894.35104.00992.60603.31312.11655.02995.02994.59704.59701.78441.7844

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 114.771
C2 C3 N4 104.988 C2 C3 H9 112.505
C2 C3 H10 112.505 C2 O5 C6 106.096
C3 C2 O5 103.769 C3 C2 H7 113.688
C3 C2 H8 113.688 C3 N4 C6 106.380
N4 C3 H9 109.831 N4 C3 H10 109.831
N4 C6 O5 118.767 O5 C2 H7 108.237
O5 C2 H8 108.237 C6 C1 H11 110.215
C6 C1 H12 110.215 C6 C1 H13 109.595
H7 C2 H8 108.860 H9 C3 H10 107.179
H11 C1 H12 107.417 H11 C1 H13 109.685
H12 C1 H13 109.685
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 -0.590      
2 C -0.108      
3 C -0.241      
4 N -0.456      
5 O -0.487      
6 C 0.526      
7 H 0.183      
8 H 0.183      
9 H 0.186      
10 H 0.186      
11 H 0.203      
12 H 0.203      
13 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.991 -0.904 0.000 1.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.443 1.787 0.000
y 1.787 -29.171 0.000
z 0.000 0.000 -34.775
Traceless
 xyz
x -8.470 1.787 0.000
y 1.787 8.438 0.000
z 0.000 0.000 0.032
Polar
3z2-r20.064
x2-y2-11.271
xy1.787
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> 147.445
(<r2>)1/2 12.143