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

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-283.645859
Energy at 298.15K-283.652303
HF Energy-283.645859
Nuclear repulsion energy220.418836
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 M06-2X/3-21G*
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 3304 3130 2.06      
2 A 3265 3093 1.34      
3 A 3159 2992 1.03      
4 A 3119 2955 3.40      
5 A 3059 2898 3.71      
6 A 1622 1537 19.73      
7 A 1549 1467 12.22      
8 A 1543 1462 13.13      
9 A 1479 1401 0.18      
10 A 1465 1387 16.09      
11 A 1421 1346 41.45      
12 A 1297 1229 1.16      
13 A 1150 1090 10.37      
14 A 1108 1050 7.71      
15 A 1068 1012 12.78      
16 A 1056 1000 1.90      
17 A 989 937 2.97      
18 A 962 911 0.34      
19 A 937 887 1.63      
20 A 888 842 19.01      
21 A 828 784 55.64      
22 A 679 643 0.08      
23 A 660 626 6.51      
24 A 589 558 8.19      
25 A 330 313 6.46      
26 A 273 258 5.86      
27 A 112 106 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 18955.6 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 17954.8 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 M06-2X/3-21G*
ABC
0.29689 0.11531 0.08438

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.141 0.036 0.000
H2 2.509 0.558 0.889
H3 2.524 -0.986 0.000
H4 2.510 0.558 -0.888
C5 -1.488 0.608 0.000
O6 -1.422 -0.767 0.000
N7 -0.005 -1.143 -0.000
C8 0.642 0.009 0.000
C9 -0.244 1.145 -0.000
H10 0.038 2.182 -0.000
H11 -2.475 1.036 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09421.09141.09423.67353.65242.44881.49862.62973.00434.7225
H21.09421.78081.77734.09534.24283.16332.13932.95243.08845.0853
H31.09141.78081.78084.31663.95182.53402.12793.49264.02655.3917
H41.09421.77731.78084.09534.24293.16302.13932.95213.08815.0854
C53.67354.09534.31664.09531.37682.29422.21311.35482.19201.0755
O63.65244.24283.95184.24291.37681.46562.20562.24573.29072.0877
N72.44883.16332.53403.16302.29421.46561.32142.29993.32503.2929
C81.49862.13932.12792.13932.21312.20561.32141.44082.25573.2820
C92.62972.95243.49262.95211.35482.24572.29991.44081.07482.2334
H103.00433.08844.02653.08812.19203.29073.32502.25571.07482.7616
H114.72255.08535.39175.08541.07552.08773.29293.28202.23342.7616

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 120.416 C1 C8 C9 126.914
H2 C1 H3 109.137 H2 C1 H4 108.615
H2 C1 C8 110.223 H3 C1 H4 109.136
H3 C1 C8 109.485 H4 C1 C8 110.220
C5 O6 N7 107.592 C5 C9 C8 104.632
C5 C9 H10 128.533 O6 C5 C9 110.595
O6 C5 H11 116.171 O6 N7 C8 104.511
N7 C8 C9 112.670 C8 C9 H10 126.835
C9 C5 H11 133.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.602      
2 H 0.229      
3 H 0.241      
4 H 0.229      
5 C 0.157      
6 O -0.391      
7 N -0.230      
8 C 0.233      
9 C -0.352      
10 H 0.224      
11 H 0.261      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.912 3.316 0.001 3.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.483 -2.772 -0.000
y -2.772 -36.629 -0.001
z -0.000 -0.001 -36.669
Traceless
 xyz
x 7.165 -2.772 -0.000
y -2.772 -3.553 -0.001
z -0.000 -0.001 -3.612
Polar
3z2-r2-7.225
x2-y27.146
xy-2.772
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.466 -0.075 -0.001
y -0.075 6.546 0.000
z -0.001 0.000 3.120


<r2> (average value of r2) Å2
<r2> 139.228
(<r2>)1/2 11.799