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All results from a given calculation for C5H6O (2-methylfuran)

using model chemistry: CCD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 1A'

Conformer 1 (C1)

Jump to S1C2
Vibrational Frequencies calculated at CCD/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at CCD/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-268.617762
Energy at 298.15K-268.624407
HF Energy-267.699086
Nuclear repulsion energy220.897429
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 CCD/aug-cc-pVDZ
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' 3311 3193 0.94      
2 A' 3285 3169 0.75      
3 A' 3273 3157 3.96      
4 A' 3151 3039 11.91      
5 A' 3051 2942 25.21      
6 A' 1674 1614 9.97      
7 A' 1576 1520 25.47      
8 A' 1492 1439 4.40      
9 A' 1427 1376 7.54      
10 A' 1412 1362 0.56      
11 A' 1279 1233 26.52      
12 A' 1251 1206 0.75      
13 A' 1182 1140 24.49      
14 A' 1119 1080 8.45      
15 A' 1037 1000 17.99      
16 A' 994 959 1.91      
17 A' 939 906 22.01      
18 A' 897 865 3.25      
19 A' 660 636 0.91      
20 A' 334 322 1.96      
21 A" 3121 3010 13.67      
22 A" 1472 1419 5.81      
23 A" 1063 1025 0.18      
24 A" 835 805 0.03      
25 A" 799 771 21.81      
26 A" 741 715 58.55      
27 A" 624 602 2.60      
28 A" 599 577 6.29      
29 A" 243 234 5.79      
30 A" 140 135 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 21489.0 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 20726.2 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 CCD/aug-cc-pVDZ
ABC
0.28987 0.11665 0.08452

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.044 -0.245 0.000
C2 0.000 0.650 0.000
C3 0.499 -1.504 0.000
C4 -1.194 -0.024 0.000
C5 -0.867 -1.438 0.000
C6 0.365 2.102 0.000
H7 1.206 -2.330 0.000
H8 -2.184 0.429 0.000
H9 -1.554 -2.283 0.000
H10 -0.553 2.710 0.000
H11 0.959 2.361 0.893
H12 0.959 2.361 -0.893

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.37431.37202.24832.25282.44322.09153.29713.30183.35852.75572.7557
C21.37432.21081.37102.26071.49803.21452.19523.31882.13352.15532.1553
C31.37202.21082.24881.36813.60901.08723.30702.19614.34363.99333.9933
C42.24831.37102.24881.45122.63693.32841.08882.28722.80873.33473.3347
C52.25282.26071.36811.45123.74892.25732.28461.08874.16034.30854.3085
C62.44321.49803.60902.63693.74894.51143.04954.78681.10081.10331.1033
H72.09153.21451.08723.32842.25734.51144.37102.76105.33834.78144.7814
H83.29712.19523.30701.08882.28463.04954.37102.78382.80483.79583.7958
H93.30183.31882.19612.28721.08874.78682.76102.78385.09265.35495.3549
H103.35852.13354.34362.80874.16031.10085.33832.80485.09261.79001.7900
H112.75572.15533.99333.33474.30851.10334.78143.79585.35491.79001.7868
H122.75572.15533.99333.33474.30851.10334.78143.79585.35491.79001.7868

picture of 2-methylfuran state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 109.966 O1 C2 C6 116.491
O1 C3 C5 110.609 O1 C3 H7 116.050
C2 O1 C3 107.224 C2 C4 C5 106.426
C2 C4 H8 125.981 C2 C6 H10 109.414
C2 C6 H11 110.991 C2 C6 H12 110.991
C3 C5 C6 73.573 C3 C5 H9 126.351
C4 C2 C6 133.543 C4 C5 H9 127.874
C5 C3 H7 133.341 C5 C4 H8 127.593
H10 C6 H11 108.615 H10 C6 H12 108.615
H11 C6 H12 108.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability