return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-285.276158
Energy at 298.15K-285.282442
HF Energy-285.276158
Nuclear repulsion energy222.226121
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 B97D3/TZVP
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 3226 3180 0.84      
2 A 3203 3157 0.28      
3 A 3088 3044 8.37      
4 A 3048 3004 13.92      
5 A 2992 2948 18.95      
6 A 1564 1541 25.91      
7 A 1467 1446 11.51      
8 A 1457 1436 9.13      
9 A 1439 1418 10.51      
10 A 1403 1382 32.22      
11 A 1380 1360 4.31      
12 A 1265 1247 1.60      
13 A 1110 1094 17.69      
14 A 1052 1037 15.01      
15 A 1040 1025 1.12      
16 A 1011 997 1.73      
17 A 960 946 0.97      
18 A 910 897 0.71      
19 A 825 813 0.19      
20 A 816 804 21.92      
21 A 750 739 48.15      
22 A 646 637 6.10      
23 A 633 624 0.33      
24 A 590 581 3.36      
25 A 331 327 6.78      
26 A 257 254 4.98      
27 A 110 108 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18286.0 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 18022.7 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 B97D3/TZVP
ABC
0.30339 0.11656 0.08556

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.134 0.026 0.000
H2 2.520 0.545 0.885
H3 2.513 -0.999 0.000
H4 2.520 0.545 -0.885
C5 -1.486 0.584 0.000
O6 -1.394 -0.764 0.000
N7 -0.021 -1.119 -0.000
C8 0.639 0.023 0.000
C9 -0.248 1.145 -0.000
H10 0.008 2.195 -0.000
H11 -2.490 0.988 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09621.09281.09623.66293.61582.44051.49502.63143.03704.7227
H21.09621.77951.77044.10294.22133.16392.14342.96713.13315.1065
H31.09281.77951.77954.30113.91462.53732.13463.49564.05905.3829
H41.09621.77041.77954.10304.22143.16372.14342.96703.13285.1066
C53.66294.10294.30114.10301.35122.24612.19791.35992.19751.0818
O63.61584.22133.91464.22141.35121.41822.18042.22743.27482.0662
N72.44053.16392.53733.16372.24611.41821.31892.27543.31403.2451
C81.49502.14342.13462.14342.19792.18041.31891.43032.26183.2741
C92.63142.96713.49562.96701.35992.22742.27541.43031.08052.2477
H103.03703.13314.05903.13282.19753.27483.31402.26181.08052.7744
H114.72275.10655.38295.10661.08182.06623.24513.27412.24772.7744

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 120.162 C1 C8 C9 128.184
H2 C1 H3 108.765 H2 C1 H4 107.700
H2 C1 C8 110.679 H3 C1 H4 108.764
H3 C1 C8 110.185 H4 C1 C8 110.676
C5 O6 N7 108.373 C5 C9 C8 103.921
C5 C9 H10 128.079 O6 C5 C9 110.490
O6 C5 H11 115.819 O6 N7 C8 105.562
N7 C8 C9 111.653 C8 C9 H10 128.000
C9 C5 H11 133.691
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.402      
2 H 0.130      
3 H 0.145      
4 H 0.130      
5 C -0.068      
6 O -0.070      
7 N -0.013      
8 C -0.038      
9 C -0.053      
10 H 0.123      
11 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.633 2.981 0.001 3.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.792 -2.064 0.000
y -2.064 -36.769 -0.001
z 0.000 -0.001 -36.296
Traceless
 xyz
x 6.740 -2.064 0.000
y -2.064 -3.725 -0.001
z 0.000 -0.001 -3.015
Polar
3z2-r2-6.030
x2-y26.977
xy-2.064
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.261 -0.159 -0.000
y -0.159 8.297 0.000
z -0.000 0.000 5.377


<r2> (average value of r2) Å2
<r2> 137.890
(<r2>)1/2 11.743