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All results from a given calculation for C4H4O (Furan)

using model chemistry: TPSSh/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/daug-cc-pVTZ
 hartrees
Energy at 0K-230.122303
Energy at 298.15K 
HF Energy-230.122303
Nuclear repulsion energy161.013492
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 TPSSh/daug-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 A1 3277 3277 0.03 213.91 0.12 0.21
2 A1 3247 3247 0.80 40.98 0.25 0.40
3 A1 1510 1510 18.62 61.39 0.10 0.19
4 A1 1415 1415 3.32 21.44 0.30 0.46
5 A1 1164 1164 0.09 33.70 0.12 0.22
6 A1 1087 1087 8.72 8.74 0.05 0.10
7 A1 1014 1014 43.34 1.96 0.19 0.32
8 A1 873 873 14.60 0.12 0.69 0.82
9 A2 889 889 0.00 0.42 0.75 0.86
10 A2 733 733 0.00 1.56 0.75 0.86
11 A2 612 612 0.00 0.06 0.75 0.86
12 B1 855 855 0.00 1.53 0.75 0.86
13 B1 765 765 114.05 0.06 0.75 0.86
14 B1 619 619 18.79 0.87 0.75 0.86
15 B2 3271 3271 0.65 16.20 0.75 0.86
16 B2 3235 3235 2.76 99.28 0.75 0.86
17 B2 1588 1588 0.00 0.10 0.75 0.86
18 B2 1289 1289 0.10 0.53 0.75 0.86
19 B2 1196 1196 19.45 0.30 0.75 0.86
20 B2 1059 1059 0.88 4.96 0.75 0.86
21 B2 884 884 0.95 2.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15290.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15290.1 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 TPSSh/daug-cc-pVTZ
ABC
0.31650 0.31001 0.15661

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.159
C2 0.000 1.094 0.346
C3 0.000 -1.094 0.346
C4 0.000 0.716 -0.957
C5 0.000 -0.716 -0.957
H6 0.000 2.047 0.846
H7 0.000 -2.047 0.846
H8 0.000 1.371 -1.813
H9 0.000 -1.371 -1.813

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36371.36372.23452.23452.07102.07103.27363.2736
C21.36372.18841.35672.23011.07623.18082.17643.2768
C31.36372.18842.23011.35673.18081.07623.27682.1764
C42.23451.35672.23011.43142.24143.29911.07792.2554
C52.23452.23011.35671.43143.29912.24142.25541.0779
H62.07101.07623.18082.24143.29914.09422.74364.3305
H72.07103.18081.07623.29912.24144.09424.33052.7436
H83.27362.17643.27681.07792.25542.74364.33052.7419
H93.27363.27682.17642.25541.07794.33052.74362.7419

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.445 O1 C2 H6 115.660
O1 C3 C5 110.445 O1 C3 H7 115.660
C2 O1 C3 106.712 C2 C4 C5 106.199
C2 C4 H8 126.362 C3 C5 C4 106.199
C3 C5 H9 126.362 C4 C2 H6 133.895
C4 C5 H9 127.439 C5 C3 H7 133.895
C5 C4 H8 127.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.518      
2 C -0.223      
3 C -0.223      
4 C -0.462      
5 C -0.462      
6 H 0.646      
7 H 0.646      
8 H 0.298      
9 H 0.298      


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 -0.629 0.629
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 5.122 0.000 0.000
y 0.000 8.709 0.000
z 0.000 0.000 7.914


<r2> (average value of r2) Å2
<r2> 81.401
(<r2>)1/2 9.022