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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-285.472701
Energy at 298.15K-285.479169
HF Energy-285.472701
Nuclear repulsion energy223.684948
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 B3LYP/Def2TZVPP
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 3275 3153 0.27      
2 A 3254 3132 0.01      
3 A 3132 3015 6.11      
4 A 3092 2977 10.83      
5 A 3042 2928 14.90      
6 A 1615 1555 29.85      
7 A 1498 1442 10.50      
8 A 1485 1430 7.83      
9 A 1479 1424 8.23      
10 A 1440 1386 42.52      
11 A 1412 1359 3.04      
12 A 1297 1249 2.97      
13 A 1149 1106 19.50      
14 A 1087 1046 10.32      
15 A 1069 1029 1.70      
16 A 1037 998 2.54      
17 A 978 942 1.91      
18 A 933 898 0.47      
19 A 894 861 27.78      
20 A 893 859 0.48      
21 A 790 760 48.26      
22 A 670 645 0.16      
23 A 660 635 5.65      
24 A 613 591 4.02      
25 A 339 326 6.76      
26 A 275 264 5.02      
27 A 127 122 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 18767.0 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 18065.1 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 B3LYP/Def2TZVPP
ABC
0.30805 0.11768 0.08651

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.128 0.029 -0.000
H2 2.516 0.542 0.881
H3 2.501 -0.993 -0.000
H4 2.516 0.542 -0.881
C5 -1.485 0.573 -0.000
O6 -1.375 -0.764 -0.000
N7 -0.022 -1.106 0.000
C8 0.635 0.029 -0.000
C9 -0.257 1.138 0.000
H10 -0.013 2.185 0.000
H11 -2.488 0.965 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09091.08801.09093.65353.59112.43041.49222.63003.03864.7094
H21.09091.77031.76154.09684.19753.15122.13902.96963.14165.0980
H31.08801.77031.77034.28243.88232.52492.12683.48524.05245.3590
H41.09091.76151.77034.09674.19743.15132.13902.96983.14185.0979
C53.65354.09684.28244.09671.34132.22692.18931.35182.18291.0766
O63.59114.19753.88234.19741.34131.39572.16092.20593.24802.0561
N72.43043.15122.52493.15132.22691.39571.31092.25593.29073.2202
C81.49222.13902.12682.13902.18932.16091.31091.42382.25193.2606
C92.63002.96963.48522.96981.35182.20592.25591.42381.07512.2374
H103.03863.14164.05243.14182.18293.24803.29072.25191.07512.7588
H114.70945.09805.35905.09791.07662.05613.22023.26062.23742.7588

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 120.090 C1 C8 C9 128.814
H2 C1 H3 108.679 H2 C1 H4 107.678
H2 C1 C8 110.841 H3 C1 H4 108.679
H3 C1 C8 110.045 H4 C1 C8 110.843
C5 O6 N7 108.893 C5 C9 C8 104.114
C5 C9 H10 127.809 O6 C5 C9 109.993
O6 C5 H11 116.076 O6 N7 C8 105.905
N7 C8 C9 111.096 C8 C9 H10 128.077
C9 C5 H11 133.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.253      
2 H 0.097      
3 H 0.106      
4 H 0.097      
5 C 0.040      
6 O -0.133      
7 N -0.110      
8 C 0.096      
9 C -0.224      
10 H 0.134      
11 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.587 2.944 0.001 3.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.894 -1.964 -0.000
y -1.964 -36.904 -0.001
z -0.000 -0.001 -36.390
Traceless
 xyz
x 6.753 -1.964 -0.000
y -1.964 -3.762 -0.001
z -0.000 -0.001 -2.991
Polar
3z2-r2-5.982
x2-y27.010
xy-1.964
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.208 -0.154 -0.000
y -0.154 8.209 0.000
z -0.000 0.000 5.502


<r2> (average value of r2) Å2
<r2> 136.738
(<r2>)1/2 11.694