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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-245.845819
Energy at 298.15K 
HF Energy-245.845819
Nuclear repulsion energy161.264012
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 PBEPBE/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' 3210 3188 0.06 127.70 0.13 0.23
2 A' 3183 3161 0.00 67.34 0.57 0.73
3 A' 3162 3140 0.99 96.12 0.37 0.54
4 A' 1546 1535 7.68 2.78 0.06 0.11
5 A' 1422 1413 26.14 25.99 0.28 0.44
6 A' 1356 1346 4.23 3.56 0.08 0.15
7 A' 1202 1193 4.43 14.20 0.14 0.25
8 A' 1110 1103 20.86 3.71 0.61 0.76
9 A' 1094 1086 5.98 10.40 0.09 0.16
10 A' 1015 1008 9.50 3.72 0.71 0.83
11 A' 901 894 7.74 3.10 0.63 0.77
12 A' 890 884 0.73 1.21 0.64 0.78
13 A' 833 828 20.10 5.28 0.15 0.25
14 A" 872 866 5.90 0.89 0.75 0.86
15 A" 830 825 0.30 0.04 0.75 0.86
16 A" 752 747 56.52 0.34 0.75 0.86
17 A" 632 628 2.11 0.27 0.75 0.86
18 A" 595 591 12.78 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12302.1 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12217.2 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 PBEPBE/cc-pVTZ
ABC
0.32423 0.31813 0.16058

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.130 0.367 0.000
C2 0.622 -0.961 0.000
C3 0.000 1.130 0.000
N4 -0.695 -1.000 0.000
O5 -1.100 0.347 0.000
H6 2.161 0.698 0.000
H7 1.171 -1.899 0.000
H8 -0.182 2.200 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42171.36312.27962.23001.08322.26702.2537
C21.42172.18111.31732.16272.26281.08743.2612
C31.36312.18112.23991.35002.20413.24771.0854
N42.27961.31732.23991.40673.32232.07123.2403
O52.23002.16271.35001.40673.28033.19472.0675
H61.08322.26282.20413.32233.28032.77972.7833
H72.26701.08743.24772.07123.19472.77974.3167
H82.25373.26121.08543.24032.06752.78334.3167

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.614 C1 C2 H7 128.762
C1 C3 O5 110.561 C1 C3 H8 133.668
C2 C1 C3 103.096 C2 C1 H6 128.692
C2 N4 O5 105.062 C3 C1 H6 128.212
C3 O5 N4 108.667 N4 C2 H7 118.624
O5 C3 H8 115.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 C -0.034      
3 C 0.046      
4 N -0.079      
5 O -0.073      
6 H 0.116      
7 H 0.110      
8 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.382 1.465 0.000 2.797
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.390 -2.532 0.000
y -2.532 -25.212 0.000
z 0.000 0.000 -30.076
Traceless
 xyz
x -0.746 -2.532 0.000
y -2.532 4.021 0.000
z 0.000 0.000 -3.276
Polar
3z2-r2-6.551
x2-y2-3.178
xy-2.532
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.748 -0.177 0.000
y -0.177 7.527 0.000
z 0.000 0.000 3.661


<r2> (average value of r2) Å2
<r2> 77.438
(<r2>)1/2 8.800