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

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-229.858045
Energy at 298.15K-229.865012
Nuclear repulsion energy170.001324
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 BLYP/3-21G
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 3200 3182 6.32      
2 A 3171 3153 2.43      
3 A 3056 3039 40.11      
4 A 3007 2991 42.30      
5 A 2994 2977 13.71      
6 A 2969 2953 37.48      
7 A 1610 1601 33.06      
8 A 1529 1521 0.13      
9 A 1508 1500 0.44      
10 A 1352 1344 1.58      
11 A 1288 1281 8.14      
12 A 1262 1255 13.43      
13 A 1243 1236 0.57      
14 A 1163 1157 1.25      
15 A 1144 1138 15.95      
16 A 1046 1041 0.12      
17 A 996 990 66.01      
18 A 946 941 1.26      
19 A 888 883 4.43      
20 A 877 872 24.18      
21 A 841 836 20.62      
22 A 815 810 0.04      
23 A 802 797 1.69      
24 A 693 689 42.27      
25 A 674 670 3.16      
26 A 438 436 24.65      
27 A 75 74 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 19792.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 19683.1 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 BLYP/3-21G
ABC
0.25755 0.24707 0.13255

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.941 2.152 0.000
C2 -0.531 1.148 0.000
H3 -2.306 -0.161 0.000
C4 -1.231 0.001 0.000
O5 -0.475 -1.195 -0.000
H6 1.483 1.237 0.894
H7 1.482 1.236 -0.895
C8 0.976 0.834 -0.000
H9 1.449 -1.166 0.903
H10 1.450 -1.167 -0.901
C11 0.984 -0.745 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08522.68572.17133.38012.74082.74102.32674.18774.18923.4783
C21.08522.20531.34412.34382.20492.20481.53943.17593.17722.4240
H32.68572.20531.08682.10354.13634.13533.42983.99073.99193.3412
C42.17131.34411.08681.41533.11363.11282.35983.05933.06042.3370
O53.38012.34382.10351.41533.24783.24672.49502.12542.12541.5263
H62.74082.20494.13633.11363.24781.78911.10372.40292.99992.2304
H72.74102.20484.13533.11283.24671.78911.10373.00072.40322.2305
C82.32671.53943.42982.35982.49501.10371.10372.24492.24511.5792
H94.18773.17593.99073.05932.12542.40293.00072.24491.80381.0992
H104.18923.17723.99193.06042.12542.99992.40322.24511.80381.0992
C113.47832.42403.34122.33701.52632.23042.23051.57921.09921.0992

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 126.380 H1 C2 C8 123.958
C2 C4 H3 129.940 C2 C4 O5 116.270
C2 C8 H6 112.016 C2 C8 H7 112.005
C2 C8 C11 102.013 H3 C4 O5 113.790
C4 C2 C8 109.662 C4 O5 C11 105.152
O5 C11 C8 106.903 O5 C11 H9 106.970
O5 C11 H10 106.971 H6 C8 H7 108.291
H6 C8 C11 111.238 H7 C8 C11 111.241
C8 C11 H9 112.661 C8 C11 H10 112.676
H9 C11 H10 110.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.157      
2 C -0.227      
3 H 0.192      
4 C 0.095      
5 O -0.428      
6 H 0.191      
7 H 0.191      
8 C -0.403      
9 H 0.197      
10 H 0.197      
11 C -0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.908 0.944 0.001 1.310
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 97.932
(<r2>)1/2 9.896