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

using model chemistry: BLYP/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 BLYP/6-31+G**
 hartrees
Energy at 0K-285.285793
Energy at 298.15K-285.292030
Nuclear repulsion energy220.279322
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 BLYP/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 3204 3187 0.92      
2 A 3185 3168 0.26      
3 A 3065 3048 7.31      
4 A 3025 3009 12.57      
5 A 2972 2956 19.43      
6 A 1545 1537 25.88      
7 A 1457 1449 13.52      
8 A 1452 1444 8.96      
9 A 1416 1408 8.32      
10 A 1391 1383 28.07      
11 A 1371 1364 7.00      
12 A 1247 1240 1.92      
13 A 1101 1095 16.43      
14 A 1042 1037 14.14      
15 A 1033 1028 1.48      
16 A 997 992 1.98      
17 A 948 943 0.92      
18 A 885 881 0.90      
19 A 821 816 0.21      
20 A 801 797 21.79      
21 A 750 747 52.81      
22 A 634 631 0.09      
23 A 630 626 6.50      
24 A 578 575 3.84      
25 A 327 325 6.78      
26 A 261 259 5.26      
27 A 118 118 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18127.2 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 18031.2 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 BLYP/6-31+G**
ABC
0.29865 0.11442 0.08404

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.153 0.028 0.000
H2 -2.545 0.550 -0.888
H3 -2.532 -1.004 -0.003
H4 -2.545 0.544 0.892
C5 1.500 0.588 0.000
O6 1.409 -0.772 0.000
N7 0.016 -1.128 -0.000
C8 -0.645 0.027 -0.000
C9 0.252 1.154 -0.000
H10 -0.002 2.211 -0.000
H11 2.510 0.992 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10251.09921.10253.69583.65032.45721.50812.65573.06474.7614
H21.10251.78831.78014.14164.26233.18752.16162.99613.16455.1510
H31.09921.78831.78824.33533.94812.55082.15093.52284.09115.4229
H41.10251.78011.78824.14234.26113.18532.16162.99833.16855.1520
C53.69584.14164.33534.14231.36212.26922.21701.37062.21141.0876
O63.65034.26233.94814.26111.36211.43852.20352.24613.29892.0793
N72.45723.18752.55083.18532.26921.43851.33082.29453.33903.2741
C81.50812.16162.15092.16162.21702.20351.33081.44012.27613.2988
C92.65572.99613.52282.99831.37062.24612.29451.44011.08682.2633
H103.06473.16454.09113.16852.21143.29893.33902.27611.08682.7912
H114.76145.15105.42295.15201.08762.07933.27413.29882.26332.7912

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 119.753 C1 C8 C9 128.506
H2 C1 H3 108.631 H2 C1 H4 107.666
H2 C1 C8 110.829 H3 C1 H4 108.624
H3 C1 C8 110.182 H4 C1 C8 110.827
C5 O6 N7 108.210 C5 C9 C8 104.115
C5 C9 H10 127.917 O6 C5 C9 110.561
O6 C5 H11 115.706 O6 N7 C8 105.374
N7 C8 C9 111.741 C8 C9 H10 127.968
C9 C5 H11 133.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.790      
2 H 0.166      
3 H 0.177      
4 H 0.166      
5 C -0.076      
6 O -0.021      
7 N -0.298      
8 C 0.276      
9 C 0.135      
10 H 0.123      
11 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.705 3.088 0.000 3.168
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.319 2.124 -0.000
y 2.124 -37.575 0.000
z -0.000 0.000 -37.046
Traceless
 xyz
x 6.992 2.124 -0.000
y 2.124 -3.893 0.000
z -0.000 0.000 -3.099
Polar
3z2-r2-6.198
x2-y27.256
xy2.124
xz-0.000
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> 140.388
(<r2>)1/2 11.849