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

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-46.966829
Energy at 298.15K-46.973216
HF Energy-46.457484
Nuclear repulsion energy111.889140
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/CEP-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' 3292 3181 2.55      
2 A' 3283 3172 3.55      
3 A' 3238 3129 3.00      
4 A' 3136 3031 37.67      
5 A' 3033 2931 48.22      
6 A' 1584 1531 0.57      
7 A' 1527 1475 8.49      
8 A' 1466 1417 7.86      
9 A' 1462 1413 9.01      
10 A' 1386 1339 5.67      
11 A' 1257 1214 0.24      
12 A' 1234 1192 0.99      
13 A' 1157 1118 30.33      
14 A' 1051 1015 5.89      
15 A' 1024 989 5.23      
16 A' 975 942 25.86      
17 A' 963 931 1.34      
18 A' 842 814 26.98      
19 A' 623 602 2.87      
20 A' 313 302 0.81      
21 A" 3127 3022 43.01      
22 A" 1504 1454 9.47      
23 A" 1085 1048 1.53      
24 A" 808 780 12.05      
25 A" 715 691 127.00      
26 A" 671 648 1.39      
27 A" 587 568 0.15      
28 A" 577 557 13.17      
29 A" 250 242 3.20      
30 A" 115 111 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21141.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 20428.8 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/CEP-31G
ABC
0.27598 0.10539 0.07741

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.720 -1.499 0.000
C2 -1.127 -0.150 0.000
C3 0.683 -1.521 0.000
C4 0.000 0.705 0.000
C5 1.186 -0.200 0.000
C6 0.012 2.239 0.000
H7 -2.199 0.035 0.000
H8 1.156 -2.501 0.000
H9 2.235 0.097 0.000
H10 -1.018 2.646 0.000
H11 0.532 2.637 0.894
H12 0.532 2.637 -0.894

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.40841.40292.31852.30653.80812.13042.12703.35784.15504.41254.4125
C21.40842.27011.41522.31372.64651.08783.27693.37102.79823.36493.3649
C31.40292.27012.32841.41373.81873.27471.08862.24154.50034.25534.2553
C42.31851.41522.32841.49191.53332.29913.40842.31632.19142.19402.1940
C52.30652.31371.41371.49192.70643.39322.30151.08983.59953.04513.0451
C63.80812.64653.81871.53332.70643.12174.87583.08731.10761.10861.1086
H72.13041.08783.27472.29913.39323.12174.20554.43442.86563.87733.8773
H82.12703.27691.08863.40842.30154.87584.20552.81265.58725.25235.2523
H93.35783.37102.24152.31631.08983.08734.43442.81264.13313.18603.1860
H104.15502.79824.50032.19143.59951.10762.86565.58724.13311.79011.7901
H114.41253.36494.25532.19403.04511.10863.87735.25233.18601.79011.7877
H124.41253.36494.25532.19403.04511.10863.87735.25233.18601.79011.7877

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 110.399 O1 C2 H7 116.596
O1 C3 C5 109.953 O1 C3 H8 116.674
C2 O1 C3 107.710 C2 C4 C5 105.450
C2 C4 C6 127.639 C3 C5 C4 106.488
C3 C5 H9 126.626 C4 C2 H7 133.006
C4 C5 H9 126.887 C4 C6 H10 111.131
C4 C6 H11 111.277 C4 C6 H12 111.277
C5 C3 H8 133.373 C5 C4 C6 126.910
H10 C6 H11 107.754 H10 C6 H12 107.754
H11 C6 H12 107.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability