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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G2
 hartrees
Energy at 0K-268.862807
Energy at 298.15K-268.856445
HF Energy-267.664278
Nuclear repulsion energy222.954177
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/6-31G*
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' 3478 3277 3.10      
2 A' 3468 3268 3.92      
3 A' 3430 3231 3.73      
4 A' 3275 3086 30.71      
5 A' 3203 3018 40.26      
6 A' 1820 1715 1.71      
7 A' 1703 1605 28.38      
8 A' 1643 1548 4.09      
9 A' 1574 1483 0.94      
10 A' 1538 1449 3.30      
11 A' 1394 1313 2.02      
12 A' 1382 1302 5.84      
13 A' 1313 1237 22.66      
14 A' 1190 1121 8.44      
15 A' 1150 1084 53.63      
16 A' 1109 1045 1.72      
17 A' 1042 982 0.94      
18 A' 961 905 29.95      
19 A' 682 643 4.08      
20 A' 340 320 1.02      
21 A" 3255 3067 34.67      
22 A" 1628 1534 4.46      
23 A" 1173 1105 1.15      
24 A" 996 939 0.00      
25 A" 913 860 41.81      
26 A" 855 806 16.34      
27 A" 682 642 0.72      
28 A" 657 619 28.83      
29 A" 287 271 2.52      
30 A" 151 142 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23145.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 21807.8 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 MP2=FULL/6-31G*
ABC
0.29724 0.11235 0.08279

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.687 -1.468 0.000
C2 -1.080 -0.159 0.000
C3 0.677 -1.459 0.000
C4 0.000 0.679 0.000
C5 1.146 -0.178 0.000
C6 -0.015 2.174 0.000
H7 -2.147 0.008 0.000
H8 1.150 -2.430 0.000
H9 2.185 0.123 0.000
H10 -1.041 2.552 0.000
H11 0.491 2.576 0.883
H12 0.491 2.576 -0.883

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.36621.36452.25392.24073.70292.07602.07383.28304.03534.30314.3031
C21.36622.18571.36682.22542.56431.08053.18243.27682.71163.27503.2750
C31.36452.18572.24281.36373.69833.18291.07972.18534.36374.13474.1347
C42.25391.36682.24281.43091.49492.24943.31472.25462.14292.14912.1491
C52.24072.22541.36371.43092.62293.29802.25151.08213.49792.96552.9655
C63.70292.56433.69831.49492.62293.03894.74883.00771.09321.09401.0940
H72.07601.08053.18292.24943.29803.03894.10064.33362.77413.78553.7855
H82.07383.18241.07973.31472.25154.74884.10062.75455.44245.12565.1256
H93.28303.27682.18532.25461.08213.00774.33362.75454.03813.10933.1093
H104.03532.71164.36372.14293.49791.09322.77415.44244.03811.76771.7677
H114.30313.27504.13472.14912.96551.09403.78555.12563.10931.76771.7656
H124.30313.27504.13472.14912.96551.09403.78555.12563.10931.76771.7656

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 111.344 O1 C2 H7 116.067
O1 C3 C5 110.858 O1 C3 H8 116.214
C2 O1 C3 106.879 C2 C4 C5 104.876
C2 C4 C6 127.930 C3 C5 C4 106.043
C3 C5 H9 126.696 C4 C2 H7 132.589
C4 C5 H9 127.261 C4 C6 H10 111.056
C4 C6 H11 111.181 C4 C6 H12 111.181
C5 C3 H8 132.928 C5 C4 C6 127.194
H10 C6 H11 107.874 H10 C6 H12 107.874
H11 C6 H12 107.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability