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

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-283.841454
Energy at 298.15K-283.847818
Nuclear repulsion energy224.083195
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/6-31+G**
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 3224 3176 0.59      
2 A 3203 3155 0.77      
3 A 3099 3052 1.30      
4 A 3068 3022 3.16      
5 A 2993 2948 9.79      
6 A 1598 1574 32.54      
7 A 1488 1466 5.32      
8 A 1468 1446 35.72      
9 A 1414 1392 13.23      
10 A 1401 1380 24.81      
11 A 1344 1324 6.44      
12 A 1267 1248 0.43      
13 A 1150 1133 13.49      
14 A 1048 1032 12.98      
15 A 1014 999 3.02      
16 A 1013 998 3.75      
17 A 970 956 15.30      
18 A 942 928 0.55      
19 A 900 887 13.34      
20 A 829 816 0.11      
21 A 751 739 56.47      
22 A 666 656 3.58      
23 A 653 643 0.38      
24 A 611 602 3.81      
25 A 328 323 7.50      
26 A 267 263 6.58      
27 A 124 122 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 18415.7 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 18139.5 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/6-31+G**
ABC
0.30747 0.11880 0.08710

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.114 0.022 0.000
H2 2.516 0.535 0.890
H3 2.477 -1.017 0.000
H4 2.516 0.535 -0.889
C5 -1.481 0.568 0.000
O6 -1.364 -0.765 0.000
N7 -0.030 -1.102 -0.000
C8 0.636 0.035 0.000
C9 -0.250 1.144 -0.000
H10 -0.003 2.204 -0.000
H11 -2.500 0.957 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10301.10071.10303.63603.56542.42021.47752.61623.04004.7071
H21.10301.78921.77904.09564.18793.15522.13942.96913.15055.1119
H31.10071.78921.78924.26383.84912.50802.12013.47914.06525.3539
H41.10301.77901.78924.09564.18783.15492.13942.96893.15035.1119
C53.63604.09564.26384.09561.33832.21312.18351.35902.20481.0902
O63.56544.18793.84914.18781.33831.37632.15402.20983.26612.0627
N72.42023.15522.50803.15492.21311.37631.31762.25673.30663.2159
C81.47752.13942.12012.13942.18352.15401.31761.41952.26173.2687
C92.61622.96913.47912.96891.35902.20982.25671.41951.08902.2575
H103.04003.15054.06523.15032.20483.26613.30662.26171.08902.7909
H114.70715.11195.35395.11191.09022.06273.21593.26872.25752.7909

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 119.860 C1 C8 C9 129.120
H2 C1 H3 108.563 H2 C1 H4 107.498
H2 C1 C8 111.179 H3 C1 H4 108.563
H3 C1 C8 109.768 H4 C1 C8 111.178
C5 O6 N7 109.218 C5 C9 C8 103.582
C5 C9 H10 128.156 O6 C5 C9 110.019
O6 C5 H11 115.915 O6 N7 C8 106.160
N7 C8 C9 111.021 C8 C9 H10 128.261
C9 C5 H11 134.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.842      
2 H 0.207      
3 H 0.217      
4 H 0.207      
5 C -0.135      
6 O 0.019      
7 N -0.293      
8 C 0.103      
9 C 0.157      
10 H 0.175      
11 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.552 3.049 0.001 3.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.638 -1.878 -0.000
y -1.878 -37.000 -0.001
z -0.000 -0.001 -36.747
Traceless
 xyz
x 7.236 -1.878 -0.000
y -1.878 -3.807 -0.001
z -0.000 -0.001 -3.429
Polar
3z2-r2-6.857
x2-y27.362
xy-1.878
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.345 -0.204 -0.000
y -0.204 8.571 0.000
z -0.000 0.000 5.614


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