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All results from a given calculation for C4H6O (Furan, 2,3-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 C1 1A
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-42.160048
Energy at 298.15K-42.167179
Nuclear repulsion energy93.321627
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 A 3230 3132 14.29      
2 A 3207 3108 3.52      
3 A 3103 3008 52.52      
4 A 3053 2960 53.45      
5 A 3025 2933 51.81      
6 A 2998 2906 59.63      
7 A 1649 1598 64.04      
8 A 1527 1480 0.19      
9 A 1504 1458 0.31      
10 A 1402 1359 3.04      
11 A 1318 1278 2.68      
12 A 1296 1256 5.98      
13 A 1239 1201 8.02      
14 A 1205 1168 9.96      
15 A 1152 1117 63.78      
16 A 1078 1045 37.20      
17 A 1063 1030 30.10      
18 A 992 962 7.48      
19 A 927 899 29.75      
20 A 920 892 26.41      
21 A 890 862 5.67      
22 A 838 812 4.37      
23 A 824 798 6.18      
24 A 706 685 47.10      
25 A 673 652 2.27      
26 A 443 430 22.92      
27 A 118 114 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 20189.8 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 19572.0 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 B3LYP/CEP-121G*
ABC
0.26603 0.25559 0.13795

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.108 2.068 0.104
C2 0.614 1.103 0.055
H3 2.286 -0.336 0.023
C4 1.227 -0.091 0.010
O5 0.390 -1.184 -0.088
H6 -1.269 1.218 -1.050
H7 -1.477 1.392 0.701
C8 -0.891 0.879 -0.073
H9 -1.607 -1.164 -0.656
H10 -1.303 -0.955 1.093
C11 -0.971 -0.670 0.085

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08462.67812.16353.33562.77482.73732.33224.28893.99083.4375
C21.08462.20601.34272.30272.18602.20731.52703.25292.99812.3786
H32.67812.20601.08662.07944.02504.19543.40224.03783.79553.2746
C42.16351.34271.08661.38073.01113.16012.33083.10372.88482.2749
O53.33562.30272.07941.38073.07423.27782.42842.07722.07681.4657
H62.77482.18604.02503.01113.07421.77141.10122.43853.05232.2229
H72.73732.20734.19543.16013.27781.77141.09782.89682.38582.2103
C82.33221.52703.40222.33082.42841.10121.09782.24212.21171.5585
H94.28893.25294.03783.10372.07722.43852.89682.24211.78761.0946
H103.99082.99813.79552.88482.07683.05232.38582.21171.78761.0989
C113.43752.37863.27462.27491.46572.22292.21031.55851.09461.0989

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 125.748 H1 C2 C8 125.666
C2 C4 H3 130.198 C2 C4 O5 115.450
C2 C8 H6 111.532 C2 C8 H7 113.477
C2 C8 C11 100.862 H3 C4 O5 114.343
C4 C2 C8 108.461 C4 O5 C11 106.066
O5 C11 C8 106.790 O5 C11 H9 107.561
O5 C11 H10 107.289 H6 C8 H7 107.329
H6 C8 C11 112.245 H7 C8 C11 111.445
C8 C11 H9 114.219 C8 C11 H10 111.489
H9 C11 H10 109.166
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 H 0.198      
2 C -0.145      
3 H 0.181      
4 C -0.128      
5 O -0.239      
6 H 0.161      
7 H 0.164      
8 C -0.364      
9 H 0.167      
10 H 0.154      
11 C -0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.779 1.003 0.117 1.275
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 7.697 -0.231 0.045
y -0.231 7.735 -0.011
z 0.045 -0.011 5.152


<r2> (average value of r2) Å2
<r2> 80.182
(<r2>)1/2 8.954