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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-231.177484
Energy at 298.15K-231.184729
Nuclear repulsion energy175.211844
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 B1B95/6-311G**
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 3269 3138 6.86      
2 A 3239 3110 2.74      
3 A 3134 3009 33.13      
4 A 3090 2967 30.68      
5 A 3047 2925 49.30      
6 A 3026 2905 43.37      
7 A 1698 1631 60.40      
8 A 1512 1452 1.24      
9 A 1488 1429 0.83      
10 A 1409 1352 4.16      
11 A 1328 1275 1.79      
12 A 1299 1247 6.11      
13 A 1247 1197 11.56      
14 A 1213 1164 22.44      
15 A 1168 1122 68.49      
16 A 1102 1058 33.22      
17 A 1068 1025 5.94      
18 A 1021 981 10.38      
19 A 957 919 19.48      
20 A 950 912 34.11      
21 A 926 889 3.69      
22 A 853 819 2.78      
23 A 837 804 6.90      
24 A 724 695 41.27      
25 A 672 645 0.95      
26 A 458 440 22.32      
27 A 136 131 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 20434.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 19619.0 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 B1B95/6-311G**
ABC
0.27392 0.26271 0.14234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.956 2.103 0.116
C2 0.522 1.118 0.061
H3 2.256 -0.209 0.027
C4 1.192 -0.027 0.012
O5 0.429 -1.145 -0.096
H6 -1.317 1.106 -1.073
H7 -1.573 1.298 0.660
C8 -0.944 0.809 -0.086
H9 -1.559 -1.258 -0.604
H10 -1.219 -0.988 1.119
C11 -0.933 -0.714 0.100

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07772.65382.14533.29732.75152.70932.30774.25883.91063.3911
C21.07772.18411.32742.27052.16022.18591.50513.22752.93022.3391
H32.65382.18411.08012.05703.96324.16333.35984.00693.72553.2295
C42.14531.32741.08011.35802.95863.13332.29523.07592.82192.2344
O53.29732.27052.05701.35803.01183.24732.38772.05492.05361.4417
H62.75152.16023.96322.95863.01181.76141.09572.42243.03332.1989
H72.70932.18594.16333.13333.24731.76141.09152.85072.35812.1834
C82.30771.50513.35982.29522.38771.09571.09152.21732.18111.5335
H94.25883.22754.00693.07592.05492.42242.85072.21731.77701.0883
H103.91062.93023.72552.82192.05363.03332.35812.18111.77701.0937
C113.39112.33913.22952.23441.44172.19892.18341.53351.08831.0937

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 125.923 H1 C2 C8 125.813
C2 C4 H3 129.956 C2 C4 O5 115.446
C2 C8 H6 111.343 C2 C8 H7 113.716
C2 C8 C11 100.664 H3 C4 O5 114.589
C4 C2 C8 108.087 C4 O5 C11 105.857
O5 C11 C8 106.708 O5 C11 H9 107.811
O5 C11 H10 107.394 H6 C8 H7 107.282
H6 C8 C11 112.439 H7 C8 C11 111.451
C8 C11 H9 114.431 C8 C11 H10 111.137
H9 C11 H10 109.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.113      
2 C -0.258      
3 H 0.121      
4 C 0.110      
5 O -0.320      
6 H 0.140      
7 H 0.139      
8 C -0.265      
9 H 0.132      
10 H 0.133      
11 C -0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.752 0.870 0.141 1.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.560 1.196 0.067
y 1.196 -31.233 -0.178
z 0.067 -0.178 -31.031
Traceless
 xyz
x 4.572 1.196 0.067
y 1.196 -2.437 -0.178
z 0.067 -0.178 -2.134
Polar
3z2-r2-4.269
x2-y24.673
xy1.196
xz0.067
yz-0.178


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.303 -0.210 0.055
y -0.210 7.298 -0.024
z 0.055 -0.024 4.808


<r2> (average value of r2) Å2
<r2> 93.136
(<r2>)1/2 9.651