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

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-283.670451
Energy at 298.15K-283.677247
Nuclear repulsion energy225.433100
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 HF/aug-cc-pVDZ
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 3442 3134 0.95      
2 A 3418 3112 0.04      
3 A 3286 2992 11.49      
4 A 3245 2955 19.01      
5 A 3183 2898 19.65      
6 A 1803 1641 44.91      
7 A 1646 1498 22.54      
8 A 1591 1449 24.52      
9 A 1580 1439 7.18      
10 A 1563 1423 52.58      
11 A 1514 1378 2.74      
12 A 1395 1270 6.15      
13 A 1254 1142 23.64      
14 A 1176 1070 7.94      
15 A 1150 1047 1.75      
16 A 1119 1019 3.47      
17 A 1048 955 44.31      
18 A 1041 948 0.28      
19 A 1020 929 2.51      
20 A 991 902 10.20      
21 A 857 780 55.72      
22 A 720 656 0.31      
23 A 701 639 9.09      
24 A 646 588 6.85      
25 A 358 326 7.61      
26 A 298 272 5.24      
27 A 146 133 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 20094.2 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 18297.7 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 HF/aug-cc-pVDZ
ABC
0.31287 0.11897 0.08760

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.125 0.029 -0.000
H2 2.499 0.548 0.882
H3 2.504 -0.989 -0.001
H4 2.499 0.549 -0.882
C5 -1.476 0.554 -0.000
O6 -1.354 -0.761 -0.000
N7 -0.029 -1.088 0.000
C8 0.628 0.018 -0.000
C9 -0.269 1.141 0.000
H10 -0.033 2.189 0.000
H11 -2.478 0.946 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09001.08641.09003.63913.56762.42561.49642.63923.05324.6931
H21.09001.77261.76404.07204.16423.13742.13522.96473.14355.0702
H31.08641.77261.77264.26923.86542.53482.12903.49684.06675.3447
H41.09001.76401.77264.07184.16433.13772.13522.96443.14285.0700
C53.63914.07204.26924.07181.32072.18902.17191.34272.18081.0755
O63.56764.16423.86544.16431.32071.36552.13002.19013.23242.0431
N72.42563.13742.53483.13772.18901.36551.28592.24193.27693.1834
C81.49642.13522.12902.13522.17192.13001.28591.43772.26993.2420
C92.63922.96473.49682.96441.34272.19012.24191.43771.07402.2180
H103.05323.14354.06673.14282.18083.23243.27692.26991.07402.7432
H114.69315.07025.34475.07001.07552.04313.18343.24202.21802.7432

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 121.152 C1 C8 C9 128.169
H2 C1 H3 109.074 H2 C1 H4 108.028
H2 C1 C8 110.299 H3 C1 H4 109.074
H3 C1 C8 110.022 H4 C1 C8 110.300
C5 O6 N7 109.147 C5 C9 C8 102.675
C5 C9 H10 128.604 O6 C5 C9 110.631
O6 C5 H11 116.631 O6 N7 C8 106.868
N7 C8 C9 110.679 C8 C9 H10 128.721
C9 C5 H11 132.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.590      
2 H 0.077      
3 H -0.109      
4 H 0.076      
5 C 0.807      
6 O -0.862      
7 N -0.237      
8 C -0.231      
9 C 0.495      
10 H -0.360      
11 H -0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.641 3.176 -0.000 3.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.503 -2.187 0.000
y -2.187 -37.222 0.000
z 0.000 0.000 -36.845
Traceless
 xyz
x 7.531 -2.187 0.000
y -2.187 -4.048 0.000
z 0.000 0.000 -3.483
Polar
3z2-r2-6.965
x2-y27.719
xy-2.187
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 135.510
(<r2>)1/2 11.641