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All results from a given calculation for C4H4O (Furan)

using model chemistry: M06-2X/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/daug-cc-pVDZ
 hartrees
Energy at 0K-229.963871
Energy at 298.15K 
HF Energy-229.963871
Nuclear repulsion energy161.064124
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 M06-2X/daug-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 A1 3320 3320 0.07 218.46 0.11 0.20
2 A1 3292 3292 0.41 35.35 0.24 0.39
3 A1 1546 1546 24.93 72.86 0.09 0.17
4 A1 1435 1435 1.84 17.26 0.31 0.48
5 A1 1178 1178 1.68 35.41 0.12 0.21
6 A1 1108 1108 18.90 4.75 0.15 0.26
7 A1 1021 1021 40.75 0.85 0.35 0.51
8 A1 890 890 13.13 0.15 0.47 0.64
9 A2 903 903 0.00 0.61 0.75 0.86
10 A2 765 765 0.00 0.74 0.75 0.86
11 A2 617 617 0.00 0.08 0.75 0.86
12 B1 882 882 1.92 1.32 0.75 0.86
13 B1 776 776 108.17 0.03 0.75 0.86
14 B1 630 630 24.88 0.87 0.75 0.86
15 B2 3314 3314 0.20 12.59 0.75 0.86
16 B2 3281 3281 1.90 96.75 0.75 0.86
17 B2 1625 1625 0.00 0.22 0.75 0.86
18 B2 1275 1275 1.07 0.67 0.75 0.86
19 B2 1246 1246 18.39 0.02 0.75 0.86
20 B2 1069 1069 2.83 4.97 0.75 0.86
21 B2 890 890 0.77 2.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15530.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15530.7 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 M06-2X/daug-cc-pVDZ
ABC
0.31651 0.31036 0.15670

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.155
C2 0.000 1.091 0.349
C3 0.000 -1.091 0.349
C4 0.000 0.718 -0.958
C5 0.000 -0.718 -0.958
H6 0.000 2.050 0.849
H7 0.000 -2.050 0.849
H8 0.000 1.381 -1.814
H9 0.000 -1.381 -1.814

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35591.35592.23142.23142.07302.07303.27433.2743
C21.35592.18181.35962.23221.08163.18072.18303.2851
C31.35592.18182.23221.35963.18071.08163.28512.1830
C42.23141.35962.23221.43642.24483.30601.08272.2671
C52.23142.23221.35961.43643.30602.24482.26711.0827
H62.07301.08163.18072.24483.30604.10072.74584.3435
H72.07303.18071.08163.30602.24484.10074.34352.7458
H83.27432.18303.28511.08272.26712.74584.34352.7621
H93.27433.28512.18302.26711.08274.34352.74582.7621

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.519 O1 C2 H6 116.076
O1 C3 C5 110.519 O1 C3 H7 116.076
C2 O1 C3 107.141 C2 C4 C5 105.910
C2 C4 H8 126.341 C3 C5 C4 105.910
C3 C5 H9 126.341 C4 C2 H6 133.405
C4 C5 H9 127.749 C5 C3 H7 133.405
C5 C4 H8 127.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.033      
2 C 0.466      
3 C 0.466      
4 C 1.590      
5 C 1.590      
6 H -0.968      
7 H -0.968      
8 H -1.072      
9 H -1.072      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.606 0.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.325 0.000 0.000
y 0.000 -24.269 0.000
z 0.000 0.000 -28.161
Traceless
 xyz
x -6.110 0.000 0.000
y 0.000 5.974 0.000
z 0.000 0.000 0.136
Polar
3z2-r20.273
x2-y2-8.056
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.069 0.000 0.000
y 0.000 8.563 0.000
z 0.000 0.000 7.825


<r2> (average value of r2) Å2
<r2> 81.508
(<r2>)1/2 9.028