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All results from a given calculation for C4H4O (Furan)

using model chemistry: B97D3/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/aug-cc-pVQZ
 hartrees
Energy at 0K-229.976674
Energy at 298.15K 
HF Energy-229.976674
Nuclear repulsion energy160.413952
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 B97D3/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at B97D3/aug-cc-pVQZ
ABC
0.31403 0.30779 0.15544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.164
C2 0.000 1.100 0.347
C3 0.000 -1.100 0.347
C4 0.000 0.717 -0.961
C5 0.000 -0.717 -0.961
H6 0.000 2.055 0.847
H7 0.000 -2.055 0.847
H8 0.000 1.372 -1.820
H9 0.000 -1.372 -1.820

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36991.36992.24232.24232.07952.07953.28393.2839
C21.36992.19941.36242.23871.07843.19432.18383.2868
C31.36992.19942.23871.36243.19431.07843.28682.1838
C42.24231.36242.23871.43482.24883.30981.08002.2589
C52.24232.23871.36241.43483.30982.24882.25891.0800
H62.07951.07843.19432.24883.30984.11052.75294.3423
H72.07953.19431.07843.30982.24884.11054.34232.7529
H83.28392.18383.28681.08002.25892.75294.34232.7435
H93.28393.28682.18382.25891.08004.34232.75292.7435

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.306 O1 C2 H6 115.782
O1 C3 C5 110.306 O1 C3 H7 115.782
C2 O1 C3 106.793 C2 C4 C5 106.297
C2 C4 H8 126.407 C3 C5 C4 106.297
C3 C5 H9 126.407 C4 C2 H6 133.912
C4 C5 H9 127.296 C5 C3 H7 133.912
C5 C4 H8 127.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.513      
2 C -0.326      
3 C -0.326      
4 C -0.518      
5 C -0.518      
6 H 0.626      
7 H 0.626      
8 H 0.475      
9 H 0.475      


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 -0.617 0.617
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.902 0.000 0.000
y 0.000 -24.560 0.000
z 0.000 0.000 -28.230
Traceless
 xyz
x -5.507 0.000 0.000
y 0.000 5.506 0.000
z 0.000 0.000 0.001
Polar
3z2-r20.002
x2-y2-7.342
xy0.000
xz0.000
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> 81.944
(<r2>)1/2 9.052