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All results from a given calculation for C4H6O (Furan, 2,5-dihydro-)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-231.185025
Energy at 298.15K-231.192189
Nuclear repulsion energy171.184763
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3263 3136 13.73      
2 A1 3035 2917 8.14      
3 A1 1677 1612 0.01      
4 A1 1536 1476 2.56      
5 A1 1373 1320 0.02      
6 A1 1129 1086 2.46      
7 A1 994 956 8.81      
8 A1 850 817 16.48      
9 A1 738 710 6.28      
10 A2 3071 2952 0.00      
11 A2 1190 1144 0.00      
12 A2 1066 1025 0.00      
13 A2 971 934 0.00      
14 A2 398 383 0.00      
15 B1 3076 2957 106.17      
16 B1 1146 1102 7.76      
17 B1 1027 987 13.96      
18 B1 702 675 66.33      
19 B1 138 132 17.56      
20 B2 3229 3104 3.31      
21 B2 3029 2912 149.15      
22 B2 1527 1468 0.34      
23 B2 1364 1311 3.60      
24 B2 1330 1279 0.64      
25 B2 1068 1027 76.18      
26 B2 925 889 0.33      
27 B2 801 770 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 20325.3 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 19538.7 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/SDD
ABC
0.25686 0.25640 0.13491

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.218
C2 0.000 1.205 0.366
C3 0.000 0.674 -1.055
C4 0.000 -0.674 -1.055
C5 0.000 -1.205 0.366
H6 0.893 1.806 0.595
H7 -0.893 1.806 0.595
H8 -0.893 -1.806 0.595
H9 0.893 -1.806 0.595
H10 0.000 1.319 -1.927
H11 0.000 -1.319 -1.927

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.47632.37082.37081.47632.10892.10892.10892.10893.41043.4104
C21.47631.51692.35562.41071.10031.10033.14943.14942.29533.4101
C32.37081.51691.34722.35562.19152.19153.10953.10951.08482.1752
C42.37082.35561.34721.51693.10953.10952.19152.19152.17521.0848
C51.47632.41072.35561.51693.14943.14941.10031.10033.41012.2953
H62.10891.10032.19153.10953.14941.78544.02953.61242.71924.1140
H72.10891.10032.19153.10953.14941.78543.61244.02952.71924.1140
H82.10893.14943.10952.19151.10034.02953.61241.78544.11402.7192
H92.10893.14943.10952.19151.10033.61244.02951.78544.11402.7192
H103.41042.29531.08482.17523.41012.71922.71924.11404.11402.6385
H113.41043.41012.17521.08482.29534.11404.11402.71922.71922.6385

picture of Furan, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 104.749 O1 C2 H6 108.996
O1 C2 H7 108.996 O1 C5 C4 104.749
O1 C5 H8 108.996 O1 C5 H9 108.996
C2 O1 C5 109.464 C2 C3 C4 110.519
C2 C3 H10 122.956 C3 C2 H6 112.748
C3 C2 H7 112.748 C3 C4 C5 110.519
C3 C4 H11 126.524 C4 C3 H10 126.524
C4 C5 H8 112.748 C4 C5 H9 112.748
C5 C4 H11 122.956 H6 C2 H7 108.457
H8 C5 H9 108.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.322      
2 C -0.251      
3 C -0.217      
4 C -0.217      
5 C -0.251      
6 H 0.198      
7 H 0.198      
8 H 0.198      
9 H 0.198      
10 H 0.233      
11 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.192 2.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.052 0.000 0.000
y 0.000 -24.640 0.000
z 0.000 0.000 -32.859
Traceless
 xyz
x -2.302 0.000 0.000
y 0.000 7.315 0.000
z 0.000 0.000 -5.013
Polar
3z2-r2-10.026
x2-y2-6.412
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.122 0.000 0.000
y 0.000 8.283 0.000
z 0.000 0.000 5.699


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000