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All results from a given calculation for C4H5NO (3-Methylisoxazole)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-285.269657
Energy at 298.15K-285.276145
Nuclear repulsion energy223.482461
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 B3PW91/cc-pVDZ
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 3295 3180 0.18      
2 A 3271 3157 0.00      
3 A 3167 3056 3.97      
4 A 3129 3020 8.55      
5 A 3055 2948 15.65      
6 A 1632 1575 29.13      
7 A 1511 1458 1.69      
8 A 1485 1433 34.67      
9 A 1451 1401 8.08      
10 A 1435 1385 24.91      
11 A 1384 1336 0.80      
12 A 1292 1247 1.86      
13 A 1162 1122 18.57      
14 A 1077 1040 11.04      
15 A 1048 1011 3.53      
16 A 1033 997 1.97      
17 A 975 941 5.43      
18 A 959 925 7.40      
19 A 914 882 17.64      
20 A 876 846 0.36      
21 A 787 759 39.20      
22 A 669 645 4.69      
23 A 668 645 0.12      
24 A 619 597 4.00      
25 A 335 324 6.57      
26 A 275 265 5.31      
27 A 134 129 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18819.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18161.1 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 B3PW91/cc-pVDZ
ABC
0.30611 0.11783 0.08647

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.127 0.023 0.000
H2 2.522 0.539 0.889
H3 2.497 -1.010 -0.001
H4 2.522 0.540 -0.888
C5 -1.484 0.569 0.000
O6 -1.370 -0.766 0.000
N7 -0.031 -1.105 -0.000
C8 0.635 0.030 0.000
C9 -0.254 1.149 -0.000
H10 -0.010 2.207 -0.000
H11 -2.499 0.959 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10101.09781.10103.65153.58442.43431.49172.63343.05494.7192
H21.10101.78671.77664.10354.20003.16352.14722.97813.15955.1162
H31.09781.78671.78674.28253.87442.52912.13263.49694.07835.3698
H41.10101.77661.78674.10334.20033.16402.14712.97763.15855.1160
C53.65154.10354.28254.10331.33952.21662.18641.35952.20321.0874
O63.58444.20003.87444.20031.33951.38162.15702.21573.26862.0615
N72.43433.16352.52913.16402.21661.38161.31542.26443.31143.2175
C81.49172.14722.13262.14712.18642.15701.31541.42902.27023.2687
C92.63342.97813.49692.97761.35952.21572.26441.42901.08582.2526
H103.05493.15954.07833.15852.20323.26863.31142.27021.08582.7838
H114.71925.11625.36985.11601.08742.06153.21753.26872.25262.7838

picture of 3-Methylisoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 N7 120.137 C1 C8 C9 128.736
H2 C1 H3 108.695 H2 C1 H4 107.568
H2 C1 C8 110.921 H3 C1 H4 108.696
H3 C1 C8 109.961 H4 C1 C8 110.921
C5 O6 N7 109.087 C5 C9 C8 103.241
C5 C9 H10 128.233 O6 C5 C9 110.357
O6 C5 H11 115.918 O6 N7 C8 106.188
N7 C8 C9 111.127 C8 C9 H10 128.526
C9 C5 H11 133.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 H 0.066      
3 H 0.064      
4 H 0.066      
5 C 0.203      
6 O -0.145      
7 N -0.141      
8 C 0.023      
9 C -0.180      
10 H 0.008      
11 H 0.044      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.486 2.769 0.000 2.812
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.209 -1.825 0.000
y -1.825 -35.910 -0.000
z 0.000 -0.000 -35.803
Traceless
 xyz
x 6.647 -1.825 0.000
y -1.825 -3.404 -0.000
z 0.000 -0.000 -3.243
Polar
3z2-r2-6.486
x2-y26.700
xy-1.825
xz0.000
yz-0.000


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> 136.455
(<r2>)1/2 11.681