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All results from a given calculation for C5H6O (3-Methylfuran)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-46.468163
Energy at 298.15K-46.475111
HF Energy-46.468163
Nuclear repulsion energy114.735933
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 HF/CEP-31G
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' 3513 3167 2.30      
2 A' 3501 3156 3.26      
3 A' 3457 3116 4.42      
4 A' 3301 2976 52.31      
5 A' 3214 2897 59.21      
6 A' 1787 1611 1.04      
7 A' 1660 1496 29.37      
8 A' 1634 1473 7.02      
9 A' 1572 1417 3.43      
10 A' 1521 1371 4.30      
11 A' 1374 1239 0.99      
12 A' 1361 1227 3.43      
13 A' 1281 1155 21.00      
14 A' 1162 1048 2.26      
15 A' 1112 1002 15.19      
16 A' 1093 985 54.70      
17 A' 1042 939 1.17      
18 A' 943 850 37.12      
19 A' 677 610 4.75      
20 A' 335 302 1.01      
21 A" 3284 2960 59.13      
22 A" 1623 1463 10.44      
23 A" 1182 1065 3.43      
24 A" 1038 936 0.66      
25 A" 918 828 80.92      
26 A" 882 795 24.39      
27 A" 674 607 5.51      
28 A" 635 572 37.71      
29 A" 282 254 4.36      
30 A" 137 123 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23096.7 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 20819.4 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 HF/CEP-31G
ABC
0.29125 0.11027 0.08119

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.716 -1.455 0.000
C2 -1.108 -0.131 0.000
C3 0.656 -1.504 0.000
C4 0.000 0.687 0.000
C5 1.160 -0.223 0.000
C6 0.033 2.203 0.000
H7 -2.158 0.069 0.000
H8 1.115 -2.470 0.000
H9 2.194 0.053 0.000
H10 -0.973 2.621 0.000
H11 0.553 2.584 0.880
H12 0.553 2.584 -0.880

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.38071.37312.25862.24413.73352.09792.09393.27784.08334.32414.3241
C21.38072.23541.37742.27002.59771.06903.22713.30762.75473.30213.3021
C31.37312.23542.28721.37593.75873.22391.06962.18864.43434.18304.1830
C42.25861.37742.28721.47481.51592.24513.34832.28432.16412.16292.1629
C52.24412.27001.37591.47482.67533.33112.24681.07073.55483.00453.0045
C63.73352.59773.75871.51592.67533.05864.79643.04871.08891.09061.0906
H72.09791.06903.22392.24513.33113.05864.14264.35272.81363.80133.8013
H82.09393.22711.06963.34832.24684.79644.14262.74385.50195.16105.1610
H93.27783.30762.18862.28431.07073.04874.35272.74384.07723.14303.1430
H104.08332.75474.43432.16413.55481.08892.81365.50194.07721.76111.7611
H114.32413.30214.18302.16293.00451.09063.80135.16103.14301.76111.7595
H124.32413.30214.18302.16293.00451.09063.80135.16103.14301.76111.7595

picture of 3-Methylfuran state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 109.947 O1 C2 H7 117.263
O1 C3 C5 109.436 O1 C3 H8 117.471
C2 O1 C3 108.540 C2 C4 C5 105.423
C2 C4 C6 127.686 C3 C5 C4 106.653
C3 C5 H9 126.441 C4 C2 H7 132.789
C4 C5 H9 126.906 C4 C6 H10 111.309
C4 C6 H11 111.107 C4 C6 H12 111.107
C5 C3 H8 133.092 C5 C4 C6 126.891
H10 C6 H11 107.804 H10 C6 H12 107.804
H11 C6 H12 107.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.245      
2 C -0.316      
3 C -0.334      
4 C -0.086      
5 C -0.000      
6 C -0.219      
7 H 0.283      
8 H 0.259      
9 H 0.309      
10 H 0.127      
11 H 0.112      
12 H 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.953 1.444 0.000 1.730
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.560 -3.517 0.000
y -3.517 -34.743 0.000
z 0.000 0.000 -38.983
Traceless
 xyz
x 4.303 -3.517 0.000
y -3.517 1.028 0.000
z 0.000 0.000 -5.331
Polar
3z2-r2-10.662
x2-y22.183
xy-3.517
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.002 0.246 0.000
y 0.246 8.986 0.000
z 0.000 0.000 4.192


<r2> (average value of r2) Å2
<r2> 120.280
(<r2>)1/2 10.967