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All results from a given calculation for C4H4O (Furan)

using model chemistry: wB97X-D/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 wB97X-D/aug-cc-pVDZ
 hartrees
Energy at 0K-229.971540
Energy at 298.15K 
HF Energy-229.971540
Nuclear repulsion energy161.014871
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 wB97X-D/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 3311 3170 0.03 207.88 0.11 0.20
2 A1 3282 3142 0.22 29.94 0.29 0.45
3 A1 1539 1473 23.11 69.64 0.10 0.18
4 A1 1431 1370 1.78 16.42 0.35 0.52
5 A1 1172 1122 0.78 35.11 0.12 0.22
6 A1 1102 1055 16.13 5.72 0.09 0.17
7 A1 1018 974 42.19 0.94 0.28 0.44
8 A1 889 851 13.56 0.20 0.61 0.75
9 A2 885 847 0.00 0.62 0.75 0.86
10 A2 748 716 0.00 1.56 0.75 0.86
11 A2 617 591 0.00 0.04 0.75 0.86
12 B1 860 823 1.34 2.14 0.75 0.86
13 B1 764 731 113.60 0.01 0.75 0.86
14 B1 626 600 26.06 0.86 0.75 0.86
15 B2 3304 3163 0.66 11.54 0.75 0.86
16 B2 3271 3132 2.35 91.88 0.75 0.86
17 B2 1617 1548 0.00 0.26 0.75 0.86
18 B2 1283 1229 0.40 0.60 0.75 0.86
19 B2 1232 1179 18.29 0.03 0.75 0.86
20 B2 1067 1021 2.94 5.43 0.75 0.86
21 B2 891 853 0.86 2.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15455.0 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 14795.1 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 wB97X-D/aug-cc-pVDZ
ABC
0.31654 0.31003 0.15663

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.156
C2 0.000 1.091 0.349
C3 0.000 -1.091 0.349
C4 0.000 0.718 -0.958
C5 0.000 -0.718 -0.958
H6 0.000 2.052 0.848
H7 0.000 -2.052 0.848
H8 0.000 1.381 -1.816
H9 0.000 -1.381 -1.816

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35651.35652.23262.23262.07502.07503.27753.2775
C21.35652.18121.35942.23171.08333.18212.18493.2864
C31.35652.18122.23171.35943.18211.08333.28642.1849
C42.23261.35942.23171.43612.24563.30711.08462.2681
C52.23262.23171.35941.43613.30712.24562.26811.0846
H62.07501.08333.18212.24563.30714.10422.74764.3461
H72.07503.18211.08333.30712.24564.10424.34612.7476
H83.27752.18493.28641.08462.26812.74764.34612.7629
H93.27753.28642.18492.26811.08464.34612.74762.7629

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.582 O1 C2 H6 116.082
O1 C3 C5 110.582 O1 C3 H7 116.082
C2 O1 C3 107.026 C2 C4 C5 105.905
C2 C4 H8 126.389 C3 C5 C4 105.905
C3 C5 H9 126.389 C4 C2 H6 133.336
C4 C5 H9 127.705 C5 C3 H7 133.336
C5 C4 H8 127.705
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.356      
2 C 0.213      
3 C 0.213      
4 C 0.788      
5 C 0.788      
6 H -0.406      
7 H -0.406      
8 H -0.418      
9 H -0.418      


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 -0.627 0.627
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.110 0.000 0.000
y 0.000 -24.177 0.000
z 0.000 0.000 -28.019
Traceless
 xyz
x -6.012 0.000 0.000
y 0.000 5.887 0.000
z 0.000 0.000 0.125
Polar
3z2-r20.250
x2-y2-7.933
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.171 0.000 0.000
y 0.000 8.514 0.000
z 0.000 0.000 7.863


<r2> (average value of r2) Å2
<r2> 81.456
(<r2>)1/2 9.025