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All results from a given calculation for C4H6O (Furan, 2,5-dihydro-)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-231.235610
Energy at 298.15K-231.242738
Nuclear repulsion energy173.568452
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 B3LYP/6-31+G**
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 3236 3120 8.47      
2 A1 2996 2888 5.98      
3 A1 1689 1628 0.29      
4 A1 1527 1472 1.86      
5 A1 1392 1342 5.97      
6 A1 1120 1080 1.29      
7 A1 990 955 8.01      
8 A1 904 871 24.96      
9 A1 751 724 6.48      
10 A2 3012 2905 0.00      
11 A2 1220 1176 0.00      
12 A2 1059 1021 0.00      
13 A2 948 914 0.00      
14 A2 394 380 0.00      
15 B1 3014 2906 89.78      
16 B1 1175 1133 2.97      
17 B1 1027 991 19.94      
18 B1 676 651 43.34      
19 B1 102 99 10.65      
20 B2 3213 3098 3.31      
21 B2 2991 2883 152.05      
22 B2 1517 1463 1.27      
23 B2 1376 1326 3.28      
24 B2 1330 1282 0.10      
25 B2 1109 1069 102.04      
26 B2 920 888 0.04      
27 B2 807 779 3.05      

Unscaled Zero Point Vibrational Energy (zpe) 20245.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 19521.0 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 B3LYP/6-31+G**
ABC
0.26547 0.26272 0.13898

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.191
C2 0.000 1.178 0.370
C3 0.000 0.667 -1.045
C4 0.000 -0.667 -1.045
C5 0.000 -1.178 0.370
H6 0.889 1.785 0.601
H7 -0.889 1.785 0.601
H8 -0.889 -1.785 0.601
H9 0.889 -1.785 0.601
H10 0.000 1.316 -1.914
H11 0.000 -1.316 -1.914

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.43572.33312.33311.43572.07952.07952.07952.07953.37183.3718
C21.43571.50452.32502.35601.10091.10093.10233.10232.28763.3817
C32.33311.50451.33362.32502.17972.17973.08433.08431.08452.1650
C42.33312.32501.33361.50453.08433.08432.17972.17972.16501.0845
C51.43572.35602.32501.50453.10233.10231.10091.10093.38172.2876
H62.07951.10092.17973.08433.10231.77723.98853.57072.70814.0907
H72.07951.10092.17973.08433.10231.77723.57073.98852.70814.0907
H82.07953.10233.08432.17971.10093.98853.57071.77724.09072.7081
H92.07953.10233.08432.17971.10093.57073.98851.77724.09072.7081
H103.37182.28761.08452.16503.38172.70812.70814.09074.09072.6326
H113.37183.38172.16501.08452.28764.09074.09072.70812.70812.6326

picture of Furan, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 105.004 O1 C2 H6 109.421
O1 C2 H7 109.421 O1 C5 C4 105.004
O1 C5 H8 109.421 O1 C5 H9 109.421
C2 O1 C5 110.266 C2 C3 C4 109.863
C2 C3 H10 123.346 C3 C2 H6 112.649
C3 C2 H7 112.649 C3 C4 C5 109.863
C3 C4 H11 126.791 C4 C3 H10 126.791
C4 C5 H8 112.649 C4 C5 H9 112.649
C5 C4 H11 123.346 H6 C2 H7 107.639
H8 C5 H9 107.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.369      
2 C -0.208      
3 C -0.017      
4 C -0.017      
5 C -0.208      
6 H 0.138      
7 H 0.138      
8 H 0.138      
9 H 0.138      
10 H 0.134      
11 H 0.134      


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 -1.814 1.814
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.605 0.000 0.000
y 0.000 -26.212 0.000
z 0.000 0.000 -32.909
Traceless
 xyz
x -2.045 0.000 0.000
y 0.000 6.045 0.000
z 0.000 0.000 -4.001
Polar
3z2-r2-8.001
x2-y2-5.393
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.642 0.000 0.000
y 0.000 9.192 0.000
z 0.000 0.000 6.754


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000