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All results from a given calculation for C4H4O (Furan)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-229.977634
Energy at 298.15K 
HF Energy-229.977634
Nuclear repulsion energy161.891497
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 B1B95/6-311G*
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 3311 3174 0.02 200.04 0.14 0.25
2 A1 3282 3146 1.96 31.39 0.29 0.45
3 A1 1546 1482 22.14 35.47 0.19 0.32
4 A1 1444 1384 2.23 13.77 0.41 0.58
5 A1 1183 1134 1.04 26.59 0.21 0.35
6 A1 1117 1071 17.83 5.73 0.25 0.39
7 A1 1031 989 42.66 0.74 0.25 0.40
8 A1 889 852 13.63 0.67 0.70 0.83
9 A2 877 841 0.00 0.91 0.75 0.86
10 A2 737 706 0.00 0.32 0.75 0.86
11 A2 617 591 0.00 0.02 0.75 0.86
12 B1 845 810 0.00 0.20 0.75 0.86
13 B1 761 730 109.71 0.80 0.75 0.86
14 B1 630 604 25.14 1.88 0.75 0.86
15 B2 3305 3168 4.02 14.37 0.75 0.86
16 B2 3270 3134 3.00 101.25 0.75 0.86
17 B2 1627 1560 0.68 0.48 0.75 0.86
18 B2 1295 1242 0.25 0.71 0.75 0.86
19 B2 1241 1189 19.72 0.39 0.75 0.86
20 B2 1076 1032 3.53 4.61 0.75 0.86
21 B2 893 856 0.34 3.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15489.4 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 14848.1 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 B1B95/6-311G*
ABC
0.32065 0.31276 0.15833

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.151
C2 0.000 1.084 0.346
C3 0.000 -1.084 0.346
C4 0.000 0.713 -0.954
C5 0.000 -0.713 -0.954
H6 0.000 2.036 0.848
H7 0.000 -2.036 0.848
H8 0.000 1.370 -1.808
H9 0.000 -1.370 -1.808

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35031.35032.22272.22272.05862.05863.26093.2609
C21.35032.16871.35222.21871.07593.16062.17323.2659
C31.35032.16872.21871.35223.16061.07593.26592.1732
C42.22271.35222.21871.42662.23543.28731.07742.2517
C52.22272.21871.35221.42663.28732.23542.25171.0774
H62.05861.07593.16062.23543.28734.07232.73824.3194
H72.05863.16061.07593.28732.23544.07234.31942.7382
H83.26092.17323.26591.07742.25172.73824.31942.7403
H93.26093.26592.17322.25171.07744.31942.73822.7403

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.654 O1 C2 H6 115.630
O1 C3 C5 110.654 O1 C3 H7 115.630
C2 O1 C3 106.840 C2 C4 C5 105.926
C2 C4 H8 126.509 C3 C5 C4 105.926
C3 C5 H9 126.509 C4 C2 H6 133.715
C4 C5 H9 127.565 C5 C3 H7 133.715
C5 C4 H8 127.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.224      
2 C -0.041      
3 C -0.041      
4 C -0.282      
5 C -0.282      
6 H 0.224      
7 H 0.224      
8 H 0.211      
9 H 0.211      


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 -0.589 0.589
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.770 0.000 0.000
y 0.000 -23.671 0.000
z 0.000 0.000 -27.593
Traceless
 xyz
x -6.138 0.000 0.000
y 0.000 6.010 0.000
z 0.000 0.000 0.127
Polar
3z2-r20.255
x2-y2-8.099
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.226 0.000 0.000
y 0.000 7.364 0.000
z 0.000 0.000 6.879


<r2> (average value of r2) Å2
<r2> 80.486
(<r2>)1/2 8.971