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All results from a given calculation for C4H4O (Furan)

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-230.069044
Energy at 298.15K 
HF Energy-230.069044
Nuclear repulsion energy160.251416
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/aug-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 3291 3183 0.03 224.74 0.12 0.22
2 A1 3258 3152 1.47 43.90 0.24 0.39
3 A1 1512 1463 19.59 65.46 0.10 0.19
4 A1 1415 1368 2.04 15.66 0.37 0.54
5 A1 1160 1122 0.07 34.37 0.12 0.22
6 A1 1085 1049 7.00 8.87 0.07 0.14
7 A1 1009 976 45.99 2.30 0.18 0.30
8 A1 869 841 13.49 0.17 0.66 0.79
9 A2 859 831 0.00 0.34 0.75 0.86
10 A2 719 696 0.00 1.40 0.75 0.86
11 A2 606 587 0.00 0.04 0.75 0.86
12 B1 829 802 0.21 1.43 0.75 0.86
13 B1 754 730 116.18 0.04 0.75 0.86
14 B1 614 594 19.24 0.85 0.75 0.86
15 B2 3285 3177 1.28 18.20 0.75 0.86
16 B2 3246 3140 3.26 103.98 0.75 0.86
17 B2 1588 1536 0.06 0.12 0.75 0.86
18 B2 1276 1234 0.04 0.59 0.75 0.86
19 B2 1194 1155 18.56 0.25 0.75 0.86
20 B2 1052 1017 1.38 5.18 0.75 0.86
21 B2 877 848 0.90 2.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15248.6 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 14750.0 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 TPSSh/aug-cc-pVDZ
ABC
0.31395 0.30671 0.15514

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.164
C2 0.000 1.098 0.348
C3 0.000 -1.098 0.348
C4 0.000 0.718 -0.963
C5 0.000 -0.718 -0.963
H6 0.000 2.057 0.852
H7 0.000 -2.057 0.852
H8 0.000 1.379 -1.824
H9 0.000 -1.379 -1.824

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36821.36822.24532.24532.08082.08083.29123.2912
C21.36822.19641.36512.24041.08333.19542.19043.2948
C31.36822.19642.24041.36513.19541.08333.29482.1904
C42.24531.36512.24041.43682.25533.31631.08532.2674
C52.24532.24041.36511.43683.31632.25532.26741.0853
H62.08081.08333.19542.25533.31634.11442.76064.3554
H72.08083.19541.08333.31632.25534.11444.35542.7606
H83.29122.19043.29481.08532.26742.76064.35542.7582
H93.29123.29482.19042.26741.08534.35542.76062.7582

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.460 O1 C2 H6 115.677
O1 C3 C5 110.460 O1 C3 H7 115.677
C2 O1 C3 106.773 C2 C4 C5 106.154
C2 C4 H8 126.346 C3 C5 C4 106.154
C3 C5 H9 126.346 C4 C2 H6 133.863
C4 C5 H9 127.501 C5 C3 H7 133.863
C5 C4 H8 127.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.395      
2 C 0.214      
3 C 0.214      
4 C 0.801      
5 C 0.801      
6 H -0.413      
7 H -0.413      
8 H -0.404      
9 H -0.404      


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 -0.645 0.645
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 5.166 0.000 0.000
y 0.000 8.743 0.000
z 0.000 0.000 7.974


<r2> (average value of r2) Å2
<r2> 82.069
(<r2>)1/2 9.059