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

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-229.814964
Energy at 298.15K-229.822345
Nuclear repulsion energy175.836768
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 HF/6-31G(2df,p)
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 3408 3086 11.88      
2 A 3379 3059 2.87      
3 A 3252 2945 58.02      
4 A 3208 2905 62.89      
5 A 3194 2892 25.87      
6 A 3170 2870 54.16      
7 A 1848 1673 73.79      
8 A 1654 1498 0.11      
9 A 1625 1472 0.04      
10 A 1544 1398 5.80      
11 A 1448 1311 3.79      
12 A 1428 1293 7.00      
13 A 1362 1233 2.31      
14 A 1319 1194 9.30      
15 A 1277 1157 92.56      
16 A 1194 1081 59.80      
17 A 1174 1063 4.06      
18 A 1092 989 25.01      
19 A 1064 964 1.01      
20 A 1024 927 33.44      
21 A 991 898 21.20      
22 A 910 824 1.89      
23 A 900 815 6.76      
24 A 822 744 31.54      
25 A 760 688 2.39      
26 A 493 446 21.01      
27 A 69 62 2.15      

Unscaled Zero Point Vibrational Energy (zpe) 21803.4 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 19742.9 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 HF/6-31G(2df,p)
ABC
0.27387 0.26622 0.14230

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.290 1.909 0.057
C2 0.704 1.014 0.027
H3 2.186 -0.555 0.018
C4 1.171 -0.211 0.006
O5 0.242 -1.188 -0.046
H6 -1.190 1.375 -0.964
H7 -1.289 1.479 0.778
C8 -0.805 0.954 -0.039
H9 -1.655 -0.955 -0.754
H10 -1.480 -0.858 0.994
C11 -1.036 -0.572 0.047

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07042.62282.12493.27132.73482.71232.30434.18794.02613.4012
C21.07042.15921.31202.25122.16782.17971.51103.17083.03472.3545
H32.62282.15921.07232.04544.01174.09793.35073.93903.80593.2229
C42.12491.31201.07231.34833.00563.08282.29403.01962.90162.2367
O53.27132.25122.04541.34833.07663.18382.38402.03892.03881.4226
H62.73482.16784.01173.00563.07661.74831.08712.38562.98422.1991
H72.71232.17974.09793.08283.18381.74831.08562.89952.35482.1918
C82.30431.51103.35072.29402.38401.08711.08562.20882.19241.5454
H94.18793.17083.93903.01962.03892.38562.89952.20881.75941.0823
H104.02613.03473.80592.90162.03882.98422.35482.19241.75941.0844
C113.40122.35453.22292.23671.42262.19912.19181.54541.08231.0844

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 125.927 H1 C2 C8 125.555
C2 C4 H3 129.527 C2 C4 O5 115.605
C2 C8 H6 112.070 C2 C8 H7 113.142
C2 C8 C11 100.764 H3 C4 O5 114.867
C4 C2 C8 108.497 C4 O5 C11 107.620
O5 C11 C8 106.810 O5 C11 H9 108.205
O5 C11 H10 108.071 H6 C8 H7 107.160
H6 C8 C11 112.134 H7 C8 C11 111.634
C8 C11 H9 113.223 C8 C11 H10 111.757
H9 C11 H10 108.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.147      
2 C -0.272      
3 H 0.165      
4 C 0.150      
5 O -0.440      
6 H 0.134      
7 H 0.134      
8 C -0.283      
9 H 0.136      
10 H 0.132      
11 C -0.004      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.468 1.052 0.090 1.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.198 0.412 0.046
y 0.412 -31.536 -0.094
z 0.046 -0.094 -30.789
Traceless
 xyz
x 4.965 0.412 0.046
y 0.412 -3.042 -0.094
z 0.046 -0.094 -1.923
Polar
3z2-r2-3.845
x2-y25.338
xy0.412
xz0.046
yz-0.094


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.664 -0.313 0.023
y -0.313 6.939 -0.006
z 0.023 -0.006 4.481


<r2> (average value of r2) Å2
<r2> 92.848
(<r2>)1/2 9.636