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All results from a given calculation for C4H5NO (Isoxazole, 5-methyl-)

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-285.467903
Energy at 298.15K-285.474343
HF Energy-285.467903
Nuclear repulsion energy224.184037
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 B3LYPultrafine/aug-cc-pVTZ
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 3267 3160 0.27      
2 A 3229 3124 2.27      
3 A 3126 3025 7.42      
4 A 3088 2988 6.49      
5 A 3038 2940 13.02      
6 A 1635 1582 37.59      
7 A 1514 1465 49.43      
8 A 1489 1440 11.82      
9 A 1477 1429 7.60      
10 A 1418 1372 0.41      
11 A 1369 1325 6.69      
12 A 1254 1214 25.46      
13 A 1212 1173 8.18      
14 A 1069 1035 2.01      
15 A 1051 1017 4.92      
16 A 1026 992 7.35      
17 A 999 966 2.54      
18 A 938 908 10.17      
19 A 920 890 4.81      
20 A 884 855 15.84      
21 A 805 779 41.49      
22 A 660 638 0.19      
23 A 654 633 0.57      
24 A 643 622 2.36      
25 A 338 327 2.27      
26 A 253 244 2.26      
27 A 109 105 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 18732.3 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 18123.5 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.31095 0.11892 0.08742

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.103 0.019 -0.000
H2 2.456 -0.519 -0.881
H3 2.538 1.014 -0.001
H4 2.456 -0.518 0.881
C5 0.617 0.109 -0.000
O6 -0.063 -1.049 0.000
N7 -1.424 -0.784 0.000
C8 -1.533 0.513 -0.000
H9 -2.513 0.964 -0.000
C10 -0.258 1.149 -0.000
H11 -0.039 2.201 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09061.08711.09061.48792.41413.61683.66914.71122.61743.0577
H21.09061.77021.76202.13292.72003.98734.21325.25933.30503.7945
H31.08711.77021.77012.12343.31994.35124.10215.05132.79952.8373
H41.09061.76201.77012.13292.72043.98754.21315.25923.30473.7938
C51.48792.13292.12342.13291.34312.22832.18813.24491.35942.1922
O62.41412.72003.31992.72041.34311.38702.14503.17092.20663.2498
N73.61683.98734.35123.98752.22831.38701.30112.05892.25723.2901
C83.66914.21324.10214.21312.18812.14501.30111.07861.42492.2541
H94.71125.25935.05135.25923.24493.17092.05891.07862.26232.7656
C102.61743.30502.79953.30471.35942.20662.25721.42492.26231.0743
H113.05773.79452.83733.79382.19223.24983.29012.25412.76561.0743

picture of Isoxazole, 5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 O6 116.930 C1 C5 C10 133.594
H2 C1 H3 108.756 H2 C1 H4 107.767
H2 C1 C5 110.684 H3 C1 H4 108.755
H3 C1 C5 110.128 H4 C1 C5 110.683
C5 O6 N7 109.400 C5 C10 C8 103.578
C5 C10 H11 128.143 O6 C5 C10 109.477
O6 N7 C8 105.830 N7 C8 H9 119.527
N7 C8 C10 111.716 C8 C10 H11 128.279
H9 C8 C10 128.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.633      
2 H 0.220      
3 H 0.203      
4 H 0.220      
5 C 0.546      
6 O -0.362      
7 N -0.441      
8 C -0.226      
9 H 0.578      
10 C -0.411      
11 H 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.989 2.671 -0.001 3.330
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.941 -3.796 0.001
y -3.796 -36.130 0.000
z 0.001 0.000 -36.414
Traceless
 xyz
x 4.331 -3.796 0.001
y -3.796 -1.952 0.000
z 0.001 0.000 -2.379
Polar
3z2-r2-4.757
x2-y24.188
xy-3.796
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.902 -0.251 0.000
y -0.251 8.592 -0.000
z 0.000 -0.000 5.974


<r2> (average value of r2) Å2
<r2> 135.875
(<r2>)1/2 11.657