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

using model chemistry: HF/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-229.876949
Energy at 298.15K-229.884383
Nuclear repulsion energy176.009517
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/aug-cc-pVTZ
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 3398 3094 8.20      
2 A 3372 3070 0.97      
3 A 3248 2957 49.60      
4 A 3204 2917 66.28      
5 A 3185 2900 24.98      
6 A 3163 2879 50.00      
7 A 1819 1656 86.88      
8 A 1653 1505 0.21      
9 A 1625 1479 0.33      
10 A 1541 1403 5.96      
11 A 1449 1319 3.17      
12 A 1430 1302 8.04      
13 A 1362 1240 3.93      
14 A 1319 1201 11.50      
15 A 1271 1157 96.65      
16 A 1191 1084 57.38      
17 A 1175 1070 8.65      
18 A 1088 991 25.86      
19 A 1064 969 2.55      
20 A 1020 929 36.92      
21 A 988 899 23.72      
22 A 913 831 3.54      
23 A 900 819 7.15      
24 A 815 742 50.56      
25 A 754 686 2.46      
26 A 497 452 20.65      
27 A 91 83 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 21766.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 19816.4 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/aug-cc-pVTZ
ABC
0.27387 0.26718 0.14275

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.287 1.906 0.075
C2 0.700 1.013 0.035
H3 2.188 -0.549 0.024
C4 1.172 -0.211 0.009
O5 0.242 -1.185 -0.061
H6 -1.172 1.350 -0.991
H7 -1.302 1.489 0.745
C8 -0.806 0.950 -0.052
H9 -1.677 -0.968 -0.711
H10 -1.444 -0.841 1.027
C11 -1.036 -0.570 0.062

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.06882.61462.12113.26482.73732.70702.30424.20233.98863.3955
C21.06882.15681.31272.24712.16152.17721.50963.18303.00342.3504
H32.61462.15681.07012.04863.99064.10483.34823.95633.77923.2245
C42.12111.31271.07011.34792.98903.09122.29423.03452.87732.2383
O53.26482.24712.04861.34793.04793.19092.37762.03772.03641.4239
H62.73732.16153.99062.98903.04791.74641.08482.38872.99112.1943
H72.70702.17724.10483.09123.19091.74641.08272.88002.35082.1857
C82.30421.50963.34822.29422.37761.08481.08272.20682.18581.5416
H94.20233.18303.95633.03452.03772.38872.88002.20681.75811.0794
H103.98863.00343.77922.87732.03642.99112.35082.18581.75811.0823
C113.39552.35043.22452.23831.42392.19432.18571.54161.07941.0823

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 125.604 H1 C2 C8 125.806
C2 C4 H3 129.406 C2 C4 O5 115.244
C2 C8 H6 111.797 C2 C8 H7 113.221
C2 C8 C11 100.758 H3 C4 O5 115.346
C4 C2 C8 108.555 C4 O5 C11 107.679
O5 C11 C8 106.526 O5 C11 H9 108.192
O5 C11 H10 107.922 H6 C8 H7 107.360
H6 C8 C11 112.161 H7 C8 C11 111.586
C8 C11 H9 113.522 C8 C11 H10 111.624
H9 C11 H10 108.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.402      
2 C -0.520      
3 H 0.729      
4 C -0.665      
5 O -0.503      
6 H 0.278      
7 H 0.297      
8 C -0.308      
9 H 0.319      
10 H 0.281      
11 C -0.311      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.636 1.079 0.092 1.256
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.785 0.330 0.038
y 0.330 -31.985 -0.160
z 0.038 -0.160 -31.414
Traceless
 xyz
x 4.914 0.330 0.038
y 0.330 -2.885 -0.160
z 0.038 -0.160 -2.029
Polar
3z2-r2-4.058
x2-y25.200
xy0.330
xz0.038
yz-0.160


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.534 -0.283 0.015
y -0.283 7.757 -0.023
z 0.015 -0.023 5.738


<r2> (average value of r2) Å2
<r2> 92.994
(<r2>)1/2 9.643