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

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-268.729430
Energy at 298.15K-268.736072
HF Energy-267.691276
Nuclear repulsion energy222.008385
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 MP2=FULL/6-31G(2df,p)
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' 3343 3142 0.14      
2 A' 3326 3126 0.16      
3 A' 3314 3114 0.40      
4 A' 3210 3017 9.28      
5 A' 3112 2925 21.26      
6 A' 1646 1547 0.91      
7 A' 1543 1451 3.88      
8 A' 1536 1443 15.33      
9 A' 1444 1358 1.77      
10 A' 1420 1335 5.00      
11 A' 1307 1229 2.98      
12 A' 1275 1199 10.76      
13 A' 1263 1187 14.80      
14 A' 1126 1058 14.58      
15 A' 1073 1008 14.51      
16 A' 1025 964 3.65      
17 A' 992 932 3.21      
18 A' 894 841 19.07      
19 A' 650 611 2.00      
20 A' 312 293 0.79      
21 A" 3195 3003 9.54      
22 A" 1528 1436 5.67      
23 A" 1079 1014 1.70      
24 A" 817 768 6.81      
25 A" 775 729 51.11      
26 A" 723 680 0.83      
27 A" 636 598 10.02      
28 A" 624 587 2.45      
29 A" 265 249 2.52      
30 A" 130 123 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21791.3 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 20481.7 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(2df,p)
ABC
0.30054 0.11321 0.08350

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.690 -1.462 0.000
C2 -1.070 -0.163 0.000
C3 0.661 -1.451 0.000
C4 0.000 0.679 0.000
C5 1.145 -0.181 0.000
C6 -0.008 2.168 0.000
H7 -2.133 0.009 0.000
H8 1.132 -2.419 0.000
H9 2.180 0.116 0.000
H10 -1.027 2.550 0.000
H11 0.500 2.563 0.880
H12 0.500 2.563 -0.880

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.35381.35022.24892.23753.69322.06062.05743.27484.02604.28804.2880
C21.35382.15791.36142.21552.56121.07633.15253.26212.71293.26613.2661
C31.35022.15792.23021.35963.68063.15211.07582.18324.34294.11284.1128
C42.24891.36142.23021.43211.48922.23543.29762.25132.13482.13862.1386
C52.23752.21551.35961.43212.61683.28342.23751.07673.48992.95302.9530
C63.69322.56123.68061.48922.61683.02914.72602.99921.08891.08971.0897
H72.06061.07633.15212.23543.28343.02914.06824.31402.77093.77173.7717
H82.05743.15251.07583.29762.23754.72604.06822.74315.41755.09795.0979
H93.27483.26212.18322.25131.07672.99924.31402.74314.02613.09553.0955
H104.02602.71294.34292.13483.48991.08892.77095.41754.02611.76241.7624
H114.28803.26614.11282.13862.95301.08973.77175.09793.09551.76241.7591
H124.28803.26614.11282.13862.95301.08973.77175.09793.09551.76241.7591

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 111.842 O1 C2 H7 115.510
O1 C3 C5 111.320 O1 C3 H8 115.535
C2 O1 C3 105.890 C2 C4 C5 104.925
C2 C4 C6 127.870 C3 C5 C4 106.023
C3 C5 H9 126.922 C4 C2 H7 132.648
C4 C5 H9 127.055 C4 C6 H10 110.845
C4 C6 H11 111.106 C4 C6 H12 111.106
C5 C3 H8 133.145 C5 C4 C6 127.206
H10 C6 H11 107.999 H10 C6 H12 107.999
H11 C6 H12 107.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability