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

using model chemistry: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-231.132324
Energy at 298.15K-231.139279
Nuclear repulsion energy172.221833
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 BLYP/6-31G**
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 3184 3160 9.42      
2 A 3157 3133 4.83      
3 A 3030 3007 43.53      
4 A 2982 2959 58.71      
5 A 2968 2945 22.08      
6 A 2939 2917 52.72      
7 A 1635 1622 52.04      
8 A 1493 1482 0.08      
9 A 1472 1460 0.55      
10 A 1370 1359 2.49      
11 A 1286 1276 0.77      
12 A 1267 1257 8.70      
13 A 1212 1202 3.73      
14 A 1171 1162 3.56      
15 A 1134 1125 42.17      
16 A 1050 1041 31.31      
17 A 1041 1033 33.45      
18 A 970 962 2.62      
19 A 901 894 17.92      
20 A 881 874 29.54      
21 A 866 859 4.85      
22 A 815 809 3.72      
23 A 810 803 2.40      
24 A 686 680 23.24      
25 A 674 669 4.90      
26 A 436 432 19.20      
27 A 65 64 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 19744.9 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 19592.8 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 BLYP/6-31G**
ABC
0.26504 0.25355 0.13654

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.921 2.154 0.055
C2 0.508 1.148 0.031
H3 2.292 -0.159 0.011
C4 1.214 0.004 0.006
O5 0.473 -1.161 -0.046
H6 -1.436 1.160 -0.984
H7 -1.564 1.249 0.782
C8 -0.976 0.808 -0.042
H9 -1.485 -1.254 -0.767
H10 -1.327 -1.123 1.012
C11 -0.942 -0.751 0.048

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08782.68892.17043.34682.76122.74262.32794.25174.08763.4514
C21.08782.21161.34472.31082.19322.20591.52403.22133.08012.3896
H32.68892.21161.09012.07764.07804.17643.40854.00823.87673.2882
C42.17041.34471.09011.38193.05633.14152.33363.07602.95652.2852
O53.34682.31082.07761.38193.14873.26232.44512.08802.08851.4765
H62.76122.19324.07803.05633.14871.77301.10612.42463.03472.2276
H72.74262.20594.17643.14153.26231.77301.10392.94472.39472.2195
C82.32791.52403.40852.33362.44511.10611.10392.24452.22791.5624
H94.25173.22134.00823.07602.08802.42462.94472.24451.79071.1002
H104.08763.08013.87672.95652.08853.03472.39472.22791.79071.1029
C113.45142.38963.28822.28521.47652.22762.21951.56241.10021.1029

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 125.995 H1 C2 C8 125.244
C2 C4 H3 130.264 C2 C4 O5 115.874
C2 C8 H6 112.021 C2 C8 H7 113.184
C2 C8 C11 101.465 H3 C4 O5 113.861
C4 C2 C8 108.711 C4 O5 C11 106.116
O5 C11 C8 107.110 O5 C11 H9 107.358
O5 C11 H10 107.245 H6 C8 H7 106.693
H6 C8 C11 112.049 H7 C8 C11 111.542
C8 C11 H9 113.782 C8 C11 H10 112.273
H9 C11 H10 108.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.061      
2 C -0.117      
3 H 0.080      
4 C 0.181      
5 O -0.441      
6 H 0.096      
7 H 0.095      
8 C -0.205      
9 H 0.099      
10 H 0.098      
11 C 0.052      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.794 0.793 0.068 1.124
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> 95.896
(<r2>)1/2 9.793