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All results from a given calculation for C4H4O (Furan)

using model chemistry: HSEh1PBE/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 HSEh1PBE/daug-cc-pVTZ
 hartrees
Energy at 0K-229.861624
Energy at 298.15K 
HF Energy-229.861624
Nuclear repulsion energy161.747234
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 HSEh1PBE/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 3298 3298 0.02 211.16 0.11 0.20
2 A1 3271 3271 0.03 29.90 0.30 0.47
3 A1 1530 1530 20.95 66.11 0.10 0.18
4 A1 1429 1429 2.52 20.23 0.31 0.47
5 A1 1174 1174 0.71 35.73 0.11 0.20
6 A1 1107 1107 14.55 5.70 0.10 0.18
7 A1 1023 1023 40.75 1.11 0.28 0.43
8 A1 890 890 13.79 0.10 0.60 0.75
9 A2 904 904 0.00 0.56 0.75 0.86
10 A2 750 750 0.00 1.51 0.75 0.86
11 A2 621 621 0.00 0.05 0.75 0.86
12 B1 871 871 0.24 1.75 0.75 0.86
13 B1 769 769 110.98 0.04 0.75 0.86
14 B1 631 631 23.47 0.81 0.75 0.86
15 B2 3290 3290 0.13 10.61 0.75 0.86
16 B2 3260 3260 1.96 95.00 0.75 0.86
17 B2 1609 1609 0.02 0.14 0.75 0.86
18 B2 1290 1290 0.41 0.57 0.75 0.86
19 B2 1227 1227 18.08 0.06 0.75 0.86
20 B2 1070 1070 2.61 5.13 0.75 0.86
21 B2 894 894 0.87 2.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15454.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15454.3 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 HSEh1PBE/daug-cc-pVTZ
ABC
0.31945 0.31282 0.15805

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.152
C2 0.000 1.087 0.347
C3 0.000 -1.087 0.347
C4 0.000 0.714 -0.954
C5 0.000 -0.714 -0.954
H6 0.000 2.042 0.842
H7 0.000 -2.042 0.842
H8 0.000 1.370 -1.807
H9 0.000 -1.370 -1.807

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35261.35262.22312.22312.06552.06553.26113.2611
C21.35262.17391.35282.22101.07613.16812.17273.2678
C31.35262.17392.22101.35283.16811.07613.26782.1727
C42.22311.35282.22101.42742.23383.28941.07722.2522
C52.22312.22101.35281.42743.28942.23382.25221.0772
H62.06551.07613.16812.23383.28944.08442.73354.3205
H72.06553.16811.07613.28942.23384.08444.32052.7335
H83.26112.17273.26781.07722.25222.73354.32052.7408
H93.26113.26782.17272.25221.07724.32052.73352.7408

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.512 O1 C2 H6 116.053
O1 C3 C5 110.512 O1 C3 H7 116.053
C2 O1 C3 106.945 C2 C4 C5 106.015
C2 C4 H8 126.420 C3 C5 C4 106.015
C3 C5 H9 126.420 C4 C2 H6 133.434
C4 C5 H9 127.565 C5 C3 H7 133.434
C5 C4 H8 127.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.526      
2 C -0.641      
3 C -0.641      
4 C -0.696      
5 C -0.696      
6 H 0.948      
7 H 0.948      
8 H 0.652      
9 H 0.652      


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 -0.604 0.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.941 0.000 0.000
y 0.000 -24.346 0.000
z 0.000 0.000 -28.012
Traceless
 xyz
x -5.762 0.000 0.000
y 0.000 5.631 0.000
z 0.000 0.000 0.132
Polar
3z2-r20.263
x2-y2-7.595
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.098 0.000 0.000
y 0.000 8.575 0.000
z 0.000 0.000 7.801


<r2> (average value of r2) Å2
<r2> 80.857
(<r2>)1/2 8.992