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All results from a given calculation for C4H6O (Furan, 2,3-dihydro-)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-231.186506
Energy at 298.15K-231.193691
Nuclear repulsion energy174.635277
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3256 3135 10.19      
2 A 3230 3109 3.36      
3 A 3124 3008 40.11      
4 A 3073 2959 43.45      
5 A 3048 2934 42.07      
6 A 3018 2905 49.42      
7 A 1692 1629 61.41      
8 A 1530 1473 1.13      
9 A 1506 1449 0.60      
10 A 1416 1363 3.46      
11 A 1333 1283 1.85      
12 A 1309 1260 8.25      
13 A 1258 1211 9.35      
14 A 1222 1177 11.84      
15 A 1173 1129 75.79      
16 A 1102 1060 38.62      
17 A 1078 1037 7.91      
18 A 1019 981 7.64      
19 A 951 915 20.81      
20 A 944 909 37.33      
21 A 911 877 4.47      
22 A 853 821 2.13      
23 A 841 810 5.99      
24 A 715 689 43.15      
25 A 689 664 2.83      
26 A 458 441 24.65      
27 A 107 103 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 20427.5 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 19665.6 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 B3PW91/6-311G*
ABC
0.27225 0.26097 0.14097

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.962 2.110 0.091
C2 0.526 1.122 0.050
H3 2.262 -0.213 0.020
C4 1.196 -0.027 0.009
O5 0.433 -1.150 -0.076
H6 -1.350 1.140 -1.036
H7 -1.555 1.291 0.707
C8 -0.947 0.815 -0.068
H9 -1.535 -1.244 -0.668
H10 -1.267 -1.031 1.076
C11 -0.939 -0.719 0.079

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08092.66332.15103.30622.74932.71772.31194.24973.97503.4081
C21.08092.19051.33022.27652.16812.18881.50873.21862.98322.3524
H32.66332.19051.08282.05703.99994.16013.37083.99483.77343.2413
C42.15101.33021.08281.35982.98953.12892.30313.06582.86552.2450
O53.30622.27652.05701.35983.05683.24372.40052.05792.05741.4464
H62.74932.16813.99992.98953.05681.76191.09802.41893.03002.2065
H72.71772.18884.16013.12893.24371.76191.09462.88362.36802.1938
C82.31191.50873.37082.30312.40051.09801.09462.22362.19511.5409
H94.24973.21863.99483.06582.05792.41892.88362.22361.77791.0908
H103.97502.98323.77342.86552.05743.03002.36802.19511.77791.0950
C113.40812.35243.24132.24501.44642.20652.19381.54091.09081.0950

picture of Furan, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.969 H1 C2 C8 125.635
C2 C4 H3 130.125 C2 C4 O5 115.617
C2 C8 H6 111.582 C2 C8 H7 113.490
C2 C8 C11 100.952 H3 C4 O5 114.253
C4 C2 C8 108.271 C4 O5 C11 106.226
O5 C11 C8 106.907 O5 C11 H9 107.579
O5 C11 H10 107.295 H6 C8 H7 106.947
H6 C8 C11 112.386 H7 C8 C11 111.576
C8 C11 H9 114.240 C8 C11 H10 111.649
H9 C11 H10 108.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.205      
2 C -0.328      
3 H 0.220      
4 C 0.023      
5 O -0.315      
6 H 0.228      
7 H 0.229      
8 C -0.475      
9 H 0.224      
10 H 0.219      
11 C -0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.775 0.867 0.108 1.168
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 93.751
(<r2>)1/2 9.683