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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-268.618149
Energy at 298.15K-268.624718
HF Energy-267.715368
Nuclear repulsion energy220.597007
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 QCISD/6-311G*
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' 3285 3145 1.86      
2 A' 3274 3134 2.29      
3 A' 3247 3108 2.16      
4 A' 3118 2985 21.58      
5 A' 3038 2909 30.94      
6 A' 1680 1609 1.05      
7 A' 1571 1504 17.18      
8 A' 1529 1464 7.41      
9 A' 1458 1395 3.98      
10 A' 1426 1365 3.42      
11 A' 1299 1244 3.08      
12 A' 1277 1223 1.78      
13 A' 1229 1176 24.60      
14 A' 1108 1061 13.94      
15 A' 1067 1021 31.48      
16 A' 1029 985 2.37      
17 A' 982 940 1.64      
18 A' 897 859 22.71      
19 A' 646 619 2.70      
20 A' 316 303 0.90      
21 A" 3101 2968 22.22      
22 A" 1513 1449 7.66      
23 A" 1070 1024 0.55      
24 A" 803 769 5.51      
25 A" 760 728 67.39      
26 A" 715 684 0.87      
27 A" 610 584 20.10      
28 A" 585 560 3.46      
29 A" 258 247 3.69      
30 A" 128 123 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21509.3 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 20593.0 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 QCISD/6-311G*
ABC
0.29650 0.11173 0.08240

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.704 -1.463 0.000
C2 -1.078 -0.152 0.000
C3 0.654 -1.467 0.000
C4 0.000 0.682 0.000
C5 1.153 -0.200 0.000
C6 0.008 2.185 0.000
H7 -2.145 0.030 0.000
H8 1.121 -2.443 0.000
H9 2.198 0.088 0.000
H10 -1.013 2.583 0.000
H11 0.523 2.578 0.885
H12 0.523 2.578 -0.885

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.36361.35812.25822.24593.71742.07572.07173.29064.05834.31514.3151
C21.36362.17521.36342.23172.57741.08263.17623.28492.73613.28643.2864
C31.35812.17522.24721.36213.70933.17491.08212.19174.38024.14304.1430
C42.25821.36342.24721.45191.50282.24223.32092.27682.15382.15642.1564
C52.24592.23171.36211.45192.64583.30632.24381.08403.52662.98262.9826
C63.71742.57743.70931.50282.64583.04644.76073.03191.09571.09681.0968
H72.07571.08263.17492.24223.30633.04644.09764.34362.79293.79413.7941
H82.07173.17621.08213.32092.24384.76074.09762.75135.46105.13375.1337
H93.29063.28492.19172.27681.08403.03194.34362.75134.06613.12813.1281
H104.05832.73614.38022.15383.52661.09572.79295.46104.06611.77281.7728
H114.31513.28644.14302.15642.98261.09683.79415.13373.12811.77281.7701
H124.31513.28644.14302.15642.98261.09683.79415.13373.12811.77281.7701

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 111.807 O1 C2 H7 115.629
O1 C3 C5 111.310 O1 C3 H8 115.745
C2 O1 C3 106.104 C2 C4 C5 104.836
C2 C4 C6 128.046 C3 C5 C4 105.943
C3 C5 H9 126.907 C4 C2 H7 132.564
C4 C5 H9 127.150 C4 C6 H10 110.993
C4 C6 H11 111.129 C4 C6 H12 111.129
C5 C3 H8 132.945 C5 C4 C6 127.118
H10 C6 H11 107.921 H10 C6 H12 107.921
H11 C6 H12 107.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability