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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-283.823439
Energy at 298.15K-283.829816
Nuclear repulsion energy224.196336
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 LSDA/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 3231 3170 0.32      
2 A 3208 3148 0.10      
3 A 3105 3047 1.40      
4 A 3071 3014 4.60      
5 A 3000 2944 8.38      
6 A 1608 1578 26.85      
7 A 1497 1469 7.29      
8 A 1481 1453 28.80      
9 A 1440 1414 11.37      
10 A 1424 1398 24.01      
11 A 1366 1340 4.47      
12 A 1279 1255 0.24      
13 A 1158 1137 12.04      
14 A 1058 1038 12.13      
15 A 1029 1010 5.92      
16 A 1021 1002 3.28      
17 A 979 961 13.84      
18 A 954 936 0.42      
19 A 903 886 13.70      
20 A 820 805 0.03      
21 A 755 741 42.11      
22 A 667 655 3.70      
23 A 657 645 0.00      
24 A 618 606 3.56      
25 A 326 320 6.95      
26 A 269 264 5.50      
27 A 134 132 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18528.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 18182.1 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 LSDA/6-31G*
ABC
0.30745 0.11900 0.08721

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.112 0.022 0.000
H2 2.519 0.534 0.889
H3 2.473 -1.018 0.000
H4 2.519 0.534 -0.889
C5 -1.480 0.567 0.000
O6 -1.362 -0.765 0.000
N7 -0.029 -1.102 -0.000
C8 0.634 0.037 0.000
C9 -0.251 1.145 -0.000
H10 -0.003 2.205 -0.000
H11 -2.499 0.954 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10361.10111.10363.63293.56212.41821.47812.61603.03964.7046
H21.10361.78931.77814.09654.18813.15602.14262.97263.15365.1138
H31.10111.78931.78934.25863.84312.50312.11973.47794.06445.3488
H41.10361.77811.78934.09654.18803.15572.14262.97243.15345.1139
C53.63294.09654.25864.09651.33742.21162.17941.35772.20501.0904
O63.56214.18813.84314.18801.33741.37502.15102.20933.26602.0607
N72.41823.15602.50313.15572.21161.37501.31762.25763.30713.2137
C81.47812.14262.11972.14262.17942.15101.31761.41812.26013.2649
C92.61602.97263.47792.97241.35772.20932.25761.41811.08892.2566
H103.03963.15364.06443.15342.20503.26603.30712.26011.08892.7923
H114.70465.11385.34885.11391.09042.06073.21373.26492.25662.7923

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 119.655 C1 C8 C9 129.172
H2 C1 H3 108.503 H2 C1 H4 107.334
H2 C1 C8 111.360 H3 C1 H4 108.502
H3 C1 C8 109.681 H4 C1 C8 111.359
C5 O6 N7 109.240 C5 C9 C8 103.447
C5 C9 H10 128.312 O6 C5 C9 110.117
O6 C5 H11 115.790 O6 N7 C8 106.022
N7 C8 C9 111.173 C8 C9 H10 128.241
C9 C5 H11 134.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.630      
2 H 0.202      
3 H 0.214      
4 H 0.202      
5 C 0.075      
6 O -0.262      
7 N -0.209      
8 C 0.297      
9 C -0.257      
10 H 0.174      
11 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.456 2.824 0.001 2.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.016 -1.774 -0.001
y -1.774 -35.704 -0.001
z -0.001 -0.001 -35.633
Traceless
 xyz
x 6.653 -1.774 -0.001
y -1.774 -3.380 -0.001
z -0.001 -0.001 -3.273
Polar
3z2-r2-6.546
x2-y26.689
xy-1.774
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.333 -0.182 -0.000
y -0.182 7.277 0.000
z -0.000 0.000 3.938


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000