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All results from a given calculation for C4H4O (Furan)

using model chemistry: TPSSh/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-230.114306
Energy at 298.15K 
HF Energy-230.114306
Nuclear repulsion energy160.870697
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 TPSSh/TZVP
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 3285 3166 0.03 210.38 0.13 0.23
2 A1 3254 3136 0.64 41.98 0.22 0.36
3 A1 1513 1458 18.62 44.54 0.15 0.26
4 A1 1415 1364 3.65 18.28 0.36 0.52
5 A1 1168 1125 0.01 27.60 0.19 0.32
6 A1 1088 1048 10.00 8.67 0.08 0.15
7 A1 1015 978 48.29 1.83 0.15 0.26
8 A1 877 845 14.43 0.96 0.73 0.85
9 A2 862 830 0.00 1.03 0.75 0.86
10 A2 726 700 0.00 0.01 0.75 0.86
11 A2 597 575 0.00 0.07 0.75 0.86
12 B1 837 806 0.35 0.11 0.75 0.86
13 B1 758 730 115.14 0.44 0.75 0.86
14 B1 616 594 18.82 1.29 0.75 0.86
15 B2 3279 3160 0.64 17.18 0.75 0.86
16 B2 3243 3125 2.76 97.54 0.75 0.86
17 B2 1590 1532 0.10 0.41 0.75 0.86
18 B2 1293 1246 0.06 0.71 0.75 0.86
19 B2 1195 1152 20.71 0.69 0.75 0.86
20 B2 1060 1021 1.39 4.58 0.75 0.86
21 B2 885 853 0.58 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15276.3 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 14721.8 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 TPSSh/TZVP
ABC
0.31599 0.30941 0.15633

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.161
C2 0.000 1.095 0.346
C3 0.000 -1.095 0.346
C4 0.000 0.716 -0.958
C5 0.000 -0.716 -0.958
H6 0.000 2.048 0.847
H7 0.000 -2.048 0.847
H8 0.000 1.371 -1.815
H9 0.000 -1.371 -1.815

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36551.36552.23662.23662.07212.07213.27663.2766
C21.36552.19081.35772.23181.07673.18342.17853.2789
C31.36552.19082.23181.35773.18341.07673.27892.1785
C42.23661.35772.23181.43222.24353.30151.07872.2560
C52.23662.23181.35771.43223.30152.24352.25601.0787
H62.07211.07673.18342.24353.30154.09642.74744.3333
H72.07213.18341.07673.30152.24354.09644.33332.7474
H83.27662.17853.27891.07872.25602.74744.33332.7413
H93.27663.27892.17852.25601.07874.33332.74742.7413

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.433 O1 C2 H6 115.581
O1 C3 C5 110.433 O1 C3 H7 115.581
C2 O1 C3 106.689 C2 C4 C5 106.223
C2 C4 H8 126.418 C3 C5 C4 106.223
C3 C5 H9 126.418 C4 C2 H6 133.986
C4 C5 H9 127.360 C5 C3 H7 133.986
C5 C4 H8 127.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.123      
2 C -0.051      
3 C -0.051      
4 C -0.117      
5 C -0.117      
6 H 0.114      
7 H 0.114      
8 H 0.116      
9 H 0.116      


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 -0.670 0.670
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.224 0.000 0.000
y 0.000 7.856 0.000
z 0.000 0.000 7.407


<r2> (average value of r2) Å2
<r2> 81.447
(<r2>)1/2 9.025