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

using model chemistry: B3LYP/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-42.155035
Energy at 298.15K-42.162109
Nuclear repulsion energy93.212773
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/CEP-121G*
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 3203 3105 15.80      
2 A1 2975 2884 13.76      
3 A1 1659 1608 0.18      
4 A1 1535 1488 1.12      
5 A1 1394 1351 9.14      
6 A1 1107 1073 1.05      
7 A1 973 943 9.97      
8 A1 901 874 20.55      
9 A1 739 716 6.44      
10 A2 2992 2900 0.00      
11 A2 1215 1178 0.00      
12 A2 1052 1020 0.00      
13 A2 937 908 0.00      
14 A2 382 370 0.00      
15 B1 2995 2903 141.06      
16 B1 1168 1133 5.11      
17 B1 1024 992 20.84      
18 B1 672 651 41.25      
19 B1 95 92 8.45      
20 B2 3180 3082 7.74      
21 B2 2969 2878 189.91      
22 B2 1523 1476 3.41      
23 B2 1365 1324 1.26      
24 B2 1317 1277 0.12      
25 B2 1103 1069 106.76      
26 B2 905 877 0.00      
27 B2 799 775 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 20088.0 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 19473.3 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 B3LYP/CEP-121G*
ABC
0.26331 0.25873 0.13730

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.201
C2 0.000 1.183 0.374
C3 0.000 0.670 -1.054
C4 0.000 -0.670 -1.054
C5 0.000 -1.183 0.374
H6 0.891 1.793 0.602
H7 -0.891 1.793 0.602
H8 -0.891 -1.793 0.602
H9 0.891 -1.793 0.602
H10 0.000 1.322 -1.924
H11 0.000 -1.322 -1.924

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.44312.35172.35171.44312.09012.09012.09012.09013.39303.3930
C21.44311.51712.33872.36561.10371.10373.11503.11502.30243.3992
C32.35171.51711.33912.33872.19032.19033.09853.09851.08782.1733
C42.35172.33871.33911.51713.09853.09852.19032.19032.17331.0878
C51.44312.36562.33871.51713.11503.11501.10371.10373.39922.3024
H62.09011.10372.19033.09853.11501.78144.00493.58692.71984.1084
H72.09011.10372.19033.09853.11501.78143.58694.00492.71984.1084
H82.09013.11503.09852.19031.10374.00493.58691.78144.10842.7198
H92.09013.11503.09852.19031.10373.58694.00491.78144.10842.7198
H103.39302.30241.08782.17333.39922.71982.71984.10844.10842.6435
H113.39303.39922.17331.08782.30244.10844.10842.71982.71982.6435

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 105.181 O1 C2 H6 109.580
O1 C2 H7 109.580 O1 C5 C4 105.181
O1 C5 H8 109.580 O1 C5 H9 109.580
C2 O1 C5 110.090 C2 C3 C4 109.773
C2 C3 H10 123.387 C3 C2 H6 112.430
C3 C2 H7 112.430 C3 C4 C5 109.773
C3 C4 H11 126.839 C4 C3 H10 126.839
C4 C5 H8 112.430 C4 C5 H9 112.430
C5 C4 H11 123.387 H6 C2 H7 107.604
H8 C5 H9 107.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.290      
2 C -0.191      
3 C -0.155      
4 C -0.155      
5 C -0.191      
6 H 0.147      
7 H 0.147      
8 H 0.147      
9 H 0.147      
10 H 0.197      
11 H 0.197      


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 -1.764 1.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.259 0.000 0.000
y 0.000 -25.892 0.000
z 0.000 0.000 -32.264
Traceless
 xyz
x -2.181 0.000 0.000
y 0.000 5.870 0.000
z 0.000 0.000 -3.689
Polar
3z2-r2-7.377
x2-y2-5.367
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.129 0.000 0.000
y 0.000 9.280 0.000
z 0.000 0.000 6.545


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