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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-286.292837
Energy at 298.15K-286.301738
HF Energy-286.010564
Nuclear repulsion energy240.635134
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 B2PLYP/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' 3214 3050 5.27      
2 A' 3112 2954 46.22      
3 A' 3099 2942 9.49      
4 A' 3094 2937 40.47      
5 A' 1755 1665 122.27      
6 A' 1576 1496 0.73      
7 A' 1552 1473 0.30      
8 A' 1529 1451 9.37      
9 A' 1459 1385 29.88      
10 A' 1407 1335 16.96      
11 A' 1366 1297 13.98      
12 A' 1275 1210 107.79      
13 A' 1103 1047 0.94      
14 A' 1027 975 92.55      
15 A' 995 945 0.16      
16 A' 964 915 24.92      
17 A' 918 872 19.23      
18 A' 761 723 5.97      
19 A' 667 633 2.87      
20 A' 350 332 5.63      
21 A" 3164 3003 21.48      
22 A" 3164 3003 31.70      
23 A" 3129 2970 7.93      
24 A" 1525 1447 8.50      
25 A" 1274 1209 0.09      
26 A" 1236 1174 1.45      
27 A" 1144 1086 0.01      
28 A" 1089 1033 3.20      
29 A" 849 805 0.43      
30 A" 593 563 6.16      
31 A" 239 227 10.25      
32 A" 141 134 1.01      
33 A" 58 55 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 24413.0 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 23172.8 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 B2PLYP/6-31G*
ABC
0.25741 0.11416 0.08276

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.342 2.129 0.000
C2 0.547 -1.500 0.000
C3 -0.994 -1.287 0.000
N4 -1.170 0.170 0.000
O5 1.080 -0.161 0.000
C6 0.000 0.675 0.000
H7 0.915 -2.019 0.889
H8 0.915 -2.019 -0.889
H9 -1.477 -1.719 0.881
H10 -1.477 -1.719 -0.881
H11 0.939 2.375 0.882
H12 0.939 2.375 -0.882
H13 -0.574 2.716 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.63463.66742.47422.40571.49304.28054.28054.34644.34641.09331.09331.0887
C23.63461.55552.39561.44172.24321.09281.09282.21832.21833.99323.99324.3631
C33.66741.55551.46782.36032.19962.22912.22911.09411.09414.23334.23334.0251
N42.47422.39561.46782.27501.27463.15133.15132.10742.10743.17593.17592.6148
O52.40571.44172.36032.27501.36632.06662.06663.12193.12192.68812.68813.3192
C61.49302.24322.19961.27461.36632.98112.98112.94832.94832.13242.13242.1203
H74.28051.09282.22913.15132.06662.98111.77702.41052.99054.39384.73725.0431
H84.28051.09282.22913.15132.06662.98111.77702.99052.41054.73724.39385.0431
H94.34642.21831.09412.10743.12192.94832.41052.99051.76274.75365.07024.6115
H104.34642.21831.09412.10743.12192.94832.99052.41051.76275.07024.75364.6115
H111.09333.99324.23333.17592.68812.13244.39384.73724.75365.07021.76441.7850
H121.09333.99324.23333.17592.68812.13244.73724.39385.07024.75361.76441.7850
H131.08874.36314.02512.61483.31922.12035.04315.04314.61154.61151.78501.7850

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 126.584 C1 C6 O5 114.496
C2 C3 N4 104.782 C2 C3 H9 112.529
C2 C3 H10 112.529 C2 O5 C6 106.013
C3 C2 O5 103.840 C3 C2 H7 113.491
C3 C2 H8 113.491 C3 N4 C6 106.445
N4 C3 H9 109.835 N4 C3 H10 109.835
N4 C6 O5 118.919 O5 C2 H7 108.461
O5 C2 H8 108.461 C6 C1 H11 110.120
C6 C1 H12 110.120 C6 C1 H13 109.433
H7 C2 H8 108.791 H9 C3 H10 107.322
H11 C1 H12 107.582 H11 C1 H13 109.782
H12 C1 H13 109.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.526      
2 C -0.047      
3 C -0.184      
4 N -0.489      
5 O -0.551      
6 C 0.560      
7 H 0.167      
8 H 0.167      
9 H 0.168      
10 H 0.168      
11 H 0.185      
12 H 0.185      
13 H 0.196      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.248 0.641 0.000
y 0.641 8.651 0.000
z 0.000 0.000 5.466


<r2> (average value of r2) Å2
<r2> 148.799
(<r2>)1/2 12.198