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

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-231.156667
Energy at 298.15K-231.163769
HF Energy-231.156667
Nuclear repulsion energy174.302804
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 wB97X-D/6-31+G**
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 3265 3109 7.48      
2 A1 3028 2884 5.98      
3 A1 1726 1644 0.14      
4 A1 1530 1457 2.33      
5 A1 1413 1346 4.97      
6 A1 1118 1065 1.11      
7 A1 1003 955 10.61      
8 A1 939 894 24.95      
9 A1 759 723 6.54      
10 A2 3057 2911 0.00      
11 A2 1240 1180 0.00      
12 A2 1066 1015 0.00      
13 A2 969 923 0.00      
14 A2 392 373 0.00      
15 B1 3058 2912 83.10      
16 B1 1197 1140 2.50      
17 B1 1031 982 24.14      
18 B1 690 657 45.02      
19 B1 65 62 11.62      
20 B2 3241 3086 2.93      
21 B2 3023 2879 149.25      
22 B2 1519 1447 0.58      
23 B2 1389 1323 3.52      
24 B2 1334 1271 0.06      
25 B2 1160 1105 109.57      
26 B2 929 885 0.54      
27 B2 816 777 1.49      

Unscaled Zero Point Vibrational Energy (zpe) 20478.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 19501.2 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 wB97X-D/6-31+G**
ABC
0.26817 0.26451 0.14022

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.184
C2 0.000 1.171 0.371
C3 0.000 0.664 -1.042
C4 0.000 -0.664 -1.042
C5 0.000 -1.171 0.371
H6 0.889 1.775 0.602
H7 -0.889 1.775 0.602
H8 -0.889 -1.775 0.602
H9 0.889 -1.775 0.602
H10 0.000 1.313 -1.910
H11 0.000 -1.313 -1.910

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.42552.32322.32321.42552.06832.06832.06832.06833.36093.3609
C21.42551.50112.31592.34161.09891.09893.08513.08512.28483.3720
C32.32321.50111.32822.31592.17382.17383.07243.07241.08342.1592
C42.32322.31591.32821.50113.07243.07242.17382.17382.15921.0834
C51.42552.34162.31591.50113.08513.08511.09891.09893.37202.2848
H62.06831.09892.17383.07243.08511.77743.96923.54902.70364.0781
H72.06831.09892.17383.07243.08511.77743.54903.96922.70364.0781
H82.06833.08513.07242.17381.09893.96923.54901.77744.07812.7036
H92.06833.08513.07242.17381.09893.54903.96921.77744.07812.7036
H103.36092.28481.08342.15923.37202.70362.70364.07814.07812.6265
H113.36093.37202.15921.08342.28484.07814.07812.70362.70362.6265

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 105.060 O1 C2 H6 109.345
O1 C2 H7 109.345 O1 C5 C4 105.060
O1 C5 H8 109.345 O1 C5 H9 109.345
C2 O1 C5 110.427 C2 C3 C4 109.727
C2 C3 H10 123.464 C3 C2 H6 112.539
C3 C2 H7 112.539 C3 C4 C5 109.727
C3 C4 H11 126.810 C4 C3 H10 126.810
C4 C5 H8 112.539 C4 C5 H9 112.539
C5 C4 H11 123.464 H6 C2 H7 107.938
H8 C5 H9 107.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.365      
2 C -0.201      
3 C -0.073      
4 C -0.073      
5 C -0.201      
6 H 0.147      
7 H 0.147      
8 H 0.147      
9 H 0.147      
10 H 0.163      
11 H 0.163      


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 -1.820 1.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.290 0.000 0.000
y 0.000 -25.762 0.000
z 0.000 0.000 -32.469
Traceless
 xyz
x -2.174 0.000 0.000
y 0.000 6.118 0.000
z 0.000 0.000 -3.943
Polar
3z2-r2-7.887
x2-y2-5.528
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.538 0.000 0.000
y 0.000 8.977 0.000
z 0.000 0.000 6.547


<r2> (average value of r2) Å2
<r2> 94.230
(<r2>)1/2 9.707