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

using model chemistry: BLYP/3-21G

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/3-21G
 hartrees
Energy at 0K-283.688688
Energy at 298.15K-283.694911
Nuclear repulsion energy217.169420
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/3-21G
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 3226 3208 0.53      
2 A 3199 3182 0.37      
3 A 3068 3051 5.83      
4 A 3032 3015 12.12      
5 A 2984 2968 11.26      
6 A 1530 1522 10.12      
7 A 1518 1510 9.17      
8 A 1489 1480 14.27      
9 A 1425 1417 4.22      
10 A 1374 1367 24.42      
11 A 1327 1319 10.63      
12 A 1243 1236 1.46      
13 A 1105 1099 6.62      
14 A 1070 1064 5.51      
15 A 1014 1008 5.90      
16 A 979 974 8.80      
17 A 947 942 1.86      
18 A 872 868 1.49      
19 A 861 857 0.37      
20 A 766 762 49.66      
21 A 758 754 8.22      
22 A 638 635 0.51      
23 A 613 609 6.87      
24 A 553 550 4.21      
25 A 318 316 5.44      
26 A 256 254 4.97      
27 A 131 131 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18148.5 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 18048.6 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/3-21G
ABC
0.28892 0.11204 0.08200

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.165 0.036 0.000
H2 2.542 0.559 0.895
H3 2.548 -0.994 -0.000
H4 2.542 0.560 -0.894
C5 -1.501 0.623 0.000
O6 -1.464 -0.774 -0.000
N7 0.009 -1.166 -0.000
C8 0.652 0.014 -0.000
C9 -0.239 1.153 -0.000
H10 0.045 2.198 -0.000
H11 -2.487 1.074 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10291.09971.10293.71243.71772.46891.51322.64983.02704.7662
H21.10291.79271.78884.14184.31583.19362.16162.98103.11785.1345
H31.09971.79271.79274.36054.01822.54582.14833.51814.05635.4439
H41.10291.78881.79274.14184.31603.19382.16162.98083.11745.1344
C53.71244.14184.36054.14181.39742.34122.23711.36932.20701.0844
O63.71774.31584.01824.31601.39741.52372.25742.28333.33272.1125
N72.46893.19362.54583.19382.34121.52371.34462.33253.36433.3540
C81.51322.16162.14832.16162.23712.25741.34461.44522.26593.3129
C92.64982.98103.51812.98081.36932.28332.33251.44521.08262.2501
H103.02703.11784.05633.11742.20703.33273.36432.26591.08262.7706
H114.76625.13455.44395.13441.08442.11253.35403.31292.25012.7706

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 119.407 C1 C8 C9 127.184
H2 C1 H3 108.959 H2 C1 H4 108.380
H2 C1 C8 110.452 H3 C1 H4 108.960
H3 C1 C8 109.596 H4 C1 C8 110.454
C5 O6 N7 106.465 C5 C9 C8 105.254
C5 C9 H10 127.960 O6 C5 C9 111.232
O6 C5 H11 116.113 O6 N7 C8 103.641
N7 C8 C9 113.409 C8 C9 H10 126.786
C9 C5 H11 132.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.575      
2 H 0.207      
3 H 0.216      
4 H 0.207      
5 C 0.137      
6 O -0.311      
7 N -0.248      
8 C 0.271      
9 C -0.287      
10 H 0.169      
11 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.865 2.975 0.000 3.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.529 -2.422 0.000
y -2.422 -36.236 -0.000
z 0.000 -0.000 -36.341
Traceless
 xyz
x 6.760 -2.422 0.000
y -2.422 -3.301 -0.000
z 0.000 -0.000 -3.459
Polar
3z2-r2-6.917
x2-y26.707
xy-2.422
xz0.000
yz-0.000


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> 142.358
(<r2>)1/2 11.931