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All results from a given calculation for C4H4O (Furan)

using model chemistry: BLYP/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 BLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-229.974114
Energy at 298.15K 
HF Energy-229.974114
Nuclear repulsion energy158.910450
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/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 3214 3214 0.03 218.98 0.12 0.22
2 A1 3181 3181 0.90 55.30 0.20 0.34
3 A1 1449 1449 16.60 68.41 0.11 0.20
4 A1 1359 1359 2.30 15.92 0.36 0.53
5 A1 1121 1121 0.00 34.45 0.13 0.22
6 A1 1041 1041 3.18 8.74 0.06 0.12
7 A1 968 968 45.19 3.79 0.15 0.26
8 A1 852 852 14.41 0.05 0.75 0.85
9 A2 844 844 0.00 0.29 0.75 0.86
10 A2 692 692 0.00 1.45 0.75 0.86
11 A2 592 592 0.00 0.04 0.75 0.86
12 B1 805 805 0.12 1.32 0.75 0.86
13 B1 720 720 110.05 0.06 0.75 0.86
14 B1 598 598 19.82 0.79 0.75 0.86
15 B2 3209 3209 0.35 21.18 0.75 0.86
16 B2 3170 3170 2.92 103.67 0.75 0.86
17 B2 1525 1525 0.09 0.06 0.75 0.86
18 B2 1230 1230 0.04 0.66 0.75 0.86
19 B2 1132 1132 17.36 0.51 0.75 0.86
20 B2 1006 1006 0.74 4.92 0.75 0.86
21 B2 858 858 0.83 1.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14782.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14782.5 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/daug-cc-pVDZ
ABC
0.30852 0.30177 0.15255

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.176
C2 0.000 1.110 0.350
C3 0.000 -1.110 0.350
C4 0.000 0.723 -0.970
C5 0.000 -0.723 -0.970
H6 0.000 2.074 0.856
H7 0.000 -2.074 0.856
H8 0.000 1.385 -1.837
H9 0.000 -1.385 -1.837

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.38371.38372.26462.26462.09832.09833.31623.3162
C21.38372.21961.37532.25851.08873.22352.20393.3177
C31.38372.21962.25851.37533.22351.08873.31772.2039
C42.26461.37532.25851.44592.27123.33991.09102.2796
C52.26462.25851.37531.44593.33992.27122.27961.0910
H62.09831.08873.22352.27123.33994.14742.77934.3836
H72.09833.22351.08873.33992.27124.14744.38362.7793
H83.31622.20393.31771.09102.27962.77934.38362.7708
H93.31623.31772.20392.27961.09104.38362.77932.7708

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.334 O1 C2 H6 115.625
O1 C3 C5 110.334 O1 C3 H7 115.625
C2 O1 C3 106.657 C2 C4 C5 106.337
C2 C4 H8 126.275 C3 C5 C4 106.337
C3 C5 H9 126.275 C4 C2 H6 134.041
C4 C5 H9 127.388 C5 C3 H7 134.041
C5 C4 H8 127.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.100      
2 C 0.378      
3 C 0.378      
4 C 2.128      
5 C 2.128      
6 H -1.146      
7 H -1.146      
8 H -1.310      
9 H -1.310      


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 -0.669 0.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.407 0.000 0.000
y 0.000 -25.015 0.000
z 0.000 0.000 -28.866
Traceless
 xyz
x -5.466 0.000 0.000
y 0.000 5.622 0.000
z 0.000 0.000 -0.156
Polar
3z2-r2-0.311
x2-y2-7.392
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.421 0.000 0.000
y 0.000 9.266 0.000
z 0.000 0.000 8.372


<r2> (average value of r2) Å2
<r2> 83.493
(<r2>)1/2 9.137