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All results from a given calculation for C4H4O (Furan)

using model chemistry: M06-2X/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 M06-2X/TZVP
 hartrees
Energy at 0K-230.004632
Energy at 298.15K 
HF Energy-230.004632
Nuclear repulsion energy161.627934
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 M06-2X/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 3322 3144 0.03 198.06 0.12 0.21
2 A1 3295 3118 0.48 29.90 0.24 0.39
3 A1 1546 1463 25.99 50.18 0.13 0.23
4 A1 1436 1358 2.71 20.06 0.31 0.48
5 A1 1183 1119 0.97 29.14 0.20 0.33
6 A1 1111 1051 26.86 5.33 0.11 0.19
7 A1 1028 972 40.44 0.47 0.26 0.42
8 A1 898 850 14.66 1.06 0.68 0.81
9 A2 902 853 0.00 0.85 0.75 0.86
10 A2 771 730 0.00 0.05 0.75 0.86
11 A2 610 577 0.00 0.06 0.75 0.86
12 B1 887 839 0.41 0.42 0.75 0.86
13 B1 778 736 114.11 0.30 0.75 0.86
14 B1 630 596 26.31 1.26 0.75 0.86
15 B2 3316 3137 0.06 11.22 0.75 0.86
16 B2 3285 3109 1.55 85.37 0.75 0.86
17 B2 1628 1541 0.27 0.56 0.75 0.86
18 B2 1300 1230 0.55 0.86 0.75 0.86
19 B2 1247 1180 21.02 0.14 0.75 0.86
20 B2 1082 1024 3.31 5.12 0.75 0.86
21 B2 898 849 0.53 5.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15575.9 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 14737.9 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 M06-2X/TZVP
ABC
0.31824 0.31298 0.15779

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.151
C2 0.000 1.089 0.347
C3 0.000 -1.089 0.347
C4 0.000 0.717 -0.953
C5 0.000 -0.717 -0.953
H6 0.000 2.043 0.844
H7 0.000 -2.043 0.844
H8 0.000 1.372 -1.807
H9 0.000 -1.372 -1.807

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35371.35372.22322.22322.06562.06563.26123.2612
C21.35372.17731.35222.22461.07573.17042.17253.2703
C31.35372.17732.22461.35223.17041.07573.27032.1725
C42.22321.35222.22461.43322.23343.29281.07662.2566
C52.22322.22461.35221.43323.29282.23342.25661.0766
H62.06561.07573.17042.23343.29284.08512.73454.3230
H72.06563.17041.07573.29282.23344.08514.32302.7345
H83.26122.17253.27031.07662.25662.73454.32302.7444
H93.26123.27032.17252.25661.07664.32302.73452.7444

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.495 O1 C2 H6 116.006
O1 C3 C5 110.495 O1 C3 H7 116.006
C2 O1 C3 107.067 C2 C4 C5 105.971
C2 C4 H8 126.511 C3 C5 C4 105.971
C3 C5 H9 126.511 C4 C2 H6 133.499
C4 C5 H9 127.518 C5 C3 H7 133.499
C5 C4 H8 127.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.182      
2 C -0.048      
3 C -0.048      
4 C -0.183      
5 C -0.183      
6 H 0.156      
7 H 0.156      
8 H 0.166      
9 H 0.166      


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 -0.676 0.676
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.220 0.000 0.000
y 0.000 -24.003 0.000
z 0.000 0.000 -28.246
Traceless
 xyz
x -6.096 0.000 0.000
y 0.000 6.229 0.000
z 0.000 0.000 -0.134
Polar
3z2-r2-0.268
x2-y2-8.217
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.235 0.000 0.000
y 0.000 7.606 0.000
z 0.000 0.000 7.282


<r2> (average value of r2) Å2
<r2> 80.987
(<r2>)1/2 8.999