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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-52.600453
Energy at 298.15K-52.609316
Nuclear repulsion energy127.854675
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 B3LYP/CEP-121G
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 3145 3065 11.85      
2 A 3047 2970 57.88      
3 A 3028 2951 47.55      
4 A 3017 2940 15.94      
5 A 1671 1628 116.16      
6 A 1533 1494 2.58      
7 A 1517 1478 1.14      
8 A 1502 1464 16.96      
9 A 1438 1401 18.68      
10 A 1358 1323 12.29      
11 A 1334 1300 1.78      
12 A 1225 1194 113.09      
13 A 1076 1049 0.50      
14 A 957 933 28.09      
15 A 937 913 24.03      
16 A 912 888 60.16      
17 A 853 831 33.50      
18 A 733 714 7.79      
19 A 638 622 4.13      
20 A 337 328 7.57      
21 A 3116 3037 56.70      
22 A 3092 3013 17.20      
23 A 3075 2996 10.47      
24 A 1497 1459 13.25      
25 A 1239 1207 0.19      
26 A 1190 1160 0.95      
27 A 1122 1093 0.12      
28 A 1080 1052 3.04      
29 A 829 808 0.04      
30 A 565 551 5.57      
31 A 235 229 15.43      
32 A 130 127 1.41      
33 A 93 91 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 23759.8 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 23153.9 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 B3LYP/CEP-121G
ABC
0.24885 0.10884 0.07912

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.375 2.171 0.000
C2 0.501 -1.564 0.000
C3 -1.047 -1.298 0.000
N4 -1.194 0.204 0.000
O5 1.098 -0.190 0.000
C6 0.000 0.715 0.000
H7 0.861 -2.079 0.896
H8 0.861 -2.079 -0.896
H9 -1.544 -1.707 0.887
H10 -1.544 -1.707 -0.887
H11 0.979 2.408 0.885
H12 0.979 2.408 -0.885
H13 -0.532 2.779 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.73753.74902.51632.46921.50384.37044.37044.41674.41671.09671.09671.0917
C23.73751.57062.44911.49842.33361.09421.09422.23372.23374.09714.09714.4642
C33.74901.57061.50872.41402.26852.24752.24751.09611.09614.31444.31444.1090
N42.51632.44911.50872.32531.29843.19903.19902.13532.13533.21833.21832.6587
O52.46921.49842.41402.32531.42292.10412.10413.17293.17292.74672.74673.3866
C61.50382.33362.26851.29841.42293.05763.05763.00573.00572.14612.14612.1312
H74.37041.09422.24753.19902.10413.05761.79262.43313.01674.48794.82845.1320
H84.37041.09422.24753.19902.10413.05761.79263.01672.43314.82844.48795.1320
H94.41672.23371.09612.13533.17293.00572.43313.01671.77434.82595.14094.6830
H104.41672.23371.09612.13533.17293.00573.01672.43311.77435.14094.82594.6830
H111.09674.09714.31443.21832.74672.14614.48794.82844.82595.14091.76971.7891
H121.09674.09714.31443.21832.74672.14614.82844.48795.14094.82591.76971.7891
H131.09174.46424.10902.65873.38662.13125.13205.13204.68304.68301.78911.7891

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 127.637 C1 C6 O5 115.033
C2 C3 N4 105.357 C2 C3 H9 112.563
C2 C3 H10 112.563 C2 O5 C6 106.011
C3 C2 O5 103.707 C3 C2 H7 113.800
C3 C2 H8 113.800 C3 N4 C6 107.594
N4 C3 H9 109.093 N4 C3 H10 109.093
N4 C6 O5 117.330 O5 C2 H7 107.482
O5 C2 H8 107.482 C6 C1 H11 110.250
C6 C1 H12 110.250 C6 C1 H13 109.370
H7 C2 H8 109.995 H9 C3 H10 108.072
H11 C1 H12 107.581 H11 C1 H13 109.684
H12 C1 H13 109.684
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.586      
2 C -0.133      
3 C -0.330      
4 N 0.076      
5 O -0.246      
6 C 0.030      
7 H 0.160      
8 H 0.160      
9 H 0.165      
10 H 0.165      
11 H 0.177      
12 H 0.177      
13 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.646 -1.239 0.000 1.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.941 2.563 0.000
y 2.563 -28.816 0.000
z 0.000 0.000 -35.557
Traceless
 xyz
x -10.754 2.563 0.000
y 2.563 10.432 0.000
z 0.000 0.000 0.322
Polar
3z2-r20.644
x2-y2-14.125
xy2.563
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.113 0.760 0.000
y 0.760 9.646 0.000
z 0.000 0.000 6.070


<r2> (average value of r2) Å2
<r2> 127.473
(<r2>)1/2 11.290