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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-268.481012
Energy at 298.15K-268.487525
HF Energy-267.661015
Nuclear repulsion energy220.720679
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 MP2/6-31G*
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' 3337 3146 0.63      
2 A' 3324 3134 0.55      
3 A' 3297 3109 0.98      
4 A' 3194 3012 14.39      
5 A' 3102 2926 24.94      
6 A' 1663 1569 0.59      
7 A' 1563 1474 5.22      
8 A' 1557 1468 15.28      
9 A' 1476 1392 1.31      
10 A' 1445 1363 6.00      
11 A' 1313 1238 1.31      
12 A' 1292 1218 1.04      
13 A' 1259 1187 28.17      
14 A' 1125 1061 10.21      
15 A' 1077 1015 24.36      
16 A' 1038 979 1.98      
17 A' 998 941 2.81      
18 A' 890 839 21.07      
19 A' 650 613 2.51      
20 A' 320 302 0.82      
21 A" 3182 3001 15.59      
22 A" 1546 1458 6.23      
23 A" 1091 1029 1.27      
24 A" 772 728 2.56      
25 A" 743 700 69.84      
26 A" 677 638 0.04      
27 A" 620 585 12.14      
28 A" 574 541 0.24      
29 A" 259 245 2.58      
30 A" 119 112 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21750.8 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 20511.0 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 MP2/6-31G*
ABC
0.29661 0.11211 0.08261

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.696 -1.468 0.000
C2 -1.080 -0.157 0.000
C3 0.666 -1.462 0.000
C4 0.000 0.682 0.000
C5 1.149 -0.185 0.000
C6 -0.002 2.178 0.000
H7 -2.148 0.018 0.000
H8 1.139 -2.434 0.000
H9 2.190 0.114 0.000
H10 -1.025 2.564 0.000
H11 0.508 2.574 0.884
H12 0.508 2.574 -0.884

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.36541.36172.25912.24743.71152.07722.07433.29104.04544.30924.3092
C21.36542.17971.36802.22992.57291.08183.17973.28152.72243.28143.2814
C31.36172.17972.24471.36573.70123.17911.08122.19284.36704.13514.1351
C42.25911.36802.24471.43941.49682.24813.31742.26202.14372.14982.1498
C52.24742.22991.36571.43942.62873.30342.24911.08263.50522.96742.9674
C63.71152.57293.70121.49682.62873.04524.75143.01051.09371.09441.0944
H72.07721.08183.17912.24813.30343.04524.10104.33872.78303.79093.7909
H82.07433.17971.08123.31742.24914.75144.10102.75635.44695.12475.1247
H93.29103.28152.19282.26201.08263.01054.33872.75634.04203.10813.1081
H104.04542.72244.36702.14373.50521.09372.78305.44694.04201.76981.7698
H114.30923.28144.13512.14982.96741.09443.79095.12473.10811.76981.7673
H124.30923.28144.13512.14982.96741.09443.79095.12473.10811.76981.7673

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 111.480 O1 C2 H7 115.682
O1 C3 C5 110.975 O1 C3 H8 115.759
C2 O1 C3 106.119 C2 C4 C5 105.154
C2 C4 C6 127.765 C3 C5 C4 106.273
C3 C5 H9 126.788 C4 C2 H7 132.838
C4 C5 H9 126.939 C4 C6 H10 110.732
C4 C6 H11 111.179 C4 C6 H12 111.179
C5 C3 H8 133.266 C5 C4 C6 127.082
H10 C6 H11 107.959 H10 C6 H12 107.959
H11 C6 H12 107.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability