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All results from a given calculation for C4H4O (Furan)

using model chemistry: mPW1PW91/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-230.050707
Energy at 298.15K 
HF Energy-230.050707
Nuclear repulsion energy161.809817
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 mPW1PW91/daug-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 A1 3304 3304 0.02 209.03 0.11 0.20
2 A1 3277 3277 0.05 29.04 0.31 0.48
3 A1 1533 1533 20.95 65.28 0.10 0.18
4 A1 1432 1432 2.67 20.86 0.30 0.46
5 A1 1177 1177 0.65 35.33 0.12 0.21
6 A1 1108 1108 15.02 5.78 0.09 0.17
7 A1 1025 1025 40.41 1.07 0.28 0.43
8 A1 891 891 14.06 0.12 0.63 0.77
9 A2 906 906 0.00 0.56 0.75 0.86
10 A2 752 752 0.00 1.52 0.75 0.86
11 A2 622 622 0.00 0.05 0.75 0.86
12 B1 874 874 0.23 1.78 0.75 0.86
13 B1 772 772 110.77 0.03 0.75 0.86
14 B1 631 631 23.12 0.82 0.75 0.86
15 B2 3296 3296 0.17 10.28 0.75 0.86
16 B2 3266 3266 1.99 94.12 0.75 0.86
17 B2 1612 1612 0.01 0.14 0.75 0.86
18 B2 1294 1294 0.37 0.56 0.75 0.86
19 B2 1229 1229 18.26 0.08 0.75 0.86
20 B2 1073 1073 2.42 5.12 0.75 0.86
21 B2 896 896 0.89 2.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15485.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15485.0 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 mPW1PW91/daug-cc-pVTZ
ABC
0.31963 0.31310 0.15817

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.151
C2 0.000 1.087 0.346
C3 0.000 -1.087 0.346
C4 0.000 0.714 -0.953
C5 0.000 -0.714 -0.953
H6 0.000 2.041 0.841
H7 0.000 -2.041 0.841
H8 0.000 1.370 -1.806
H9 0.000 -1.370 -1.806

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35241.35242.22242.22242.06442.06443.25943.2594
C21.35242.17321.35202.22041.07503.16642.17113.2660
C31.35242.17322.22041.35203.16641.07503.26602.1711
C42.22241.35202.22041.42742.23203.28761.07602.2513
C52.22242.22041.35201.42743.28762.23202.25131.0760
H62.06441.07503.16642.23203.28764.08182.73124.3176
H72.06443.16641.07503.28762.23204.08184.31762.7312
H83.25942.17113.26601.07602.25132.73124.31762.7395
H93.25943.26602.17112.25131.07604.31762.73122.7395

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.526 O1 C2 H6 116.053
O1 C3 C5 110.526 O1 C3 H7 116.053
C2 O1 C3 106.929 C2 C4 C5 106.010
C2 C4 H8 126.425 C3 C5 C4 106.010
C3 C5 H9 126.425 C4 C2 H6 133.422
C4 C5 H9 127.565 C5 C3 H7 133.422
C5 C4 H8 127.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.566      
2 C -0.538      
3 C -0.538      
4 C -0.730      
5 C -0.730      
6 H 0.940      
7 H 0.940      
8 H 0.612      
9 H 0.612      


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 -0.611 0.611
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.844 0.000 0.000
y 0.000 -24.256 0.000
z 0.000 0.000 -27.935
Traceless
 xyz
x -5.748 0.000 0.000
y 0.000 5.633 0.000
z 0.000 0.000 0.115
Polar
3z2-r20.229
x2-y2-7.587
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.073 0.000 0.000
y 0.000 8.525 0.000
z 0.000 0.000 7.769


<r2> (average value of r2) Å2
<r2> 80.750
(<r2>)1/2 8.986