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

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-47.037202
Energy at 298.15K 
HF Energy-46.473804
Nuclear repulsion energy112.654936
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-121G
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' 3254 3176 1.56      
2 A' 3240 3162 2.20      
3 A' 3199 3122 4.00      
4 A' 3074 3001 29.47      
5 A' 2970 2898 44.31      
6 A' 1574 1536 0.84      
7 A' 1528 1491 7.21      
8 A' 1465 1430 1.31      
9 A' 1452 1417 14.00      
10 A' 1369 1336 7.58      
11 A' 1251 1221 0.04      
12 A' 1232 1202 0.29      
13 A' 1152 1124 29.33      
14 A' 1047 1022 8.49      
15 A' 1019 995 4.01      
16 A' 974 951 25.53      
17 A' 960 937 1.24      
18 A' 847 827 29.37      
19 A' 623 608 2.77      
20 A' 318 310 0.83      
21 A" 3063 2989 31.33      
22 A" 1498 1462 8.26      
23 A" 1066 1041 0.00      
24 A" 666 650 49.27      
25 A" 644 629 68.73      
26 A" 572 558 0.18      
27 A" 561 547 7.98      
28 A" 243 237 3.95      
29 A" 114 111 0.06      
30 A" 234i 228i 3.44      

Unscaled Zero Point Vibrational Energy (zpe) 20369.4 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 19880.5 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-121G
ABC
0.27969 0.10698 0.07854

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.725 -1.484 0.000
C2 -1.121 -0.135 0.000
C3 0.675 -1.513 0.000
C4 0.000 0.697 0.000
C5 1.173 -0.209 0.000
C6 0.028 2.221 0.000
H7 -2.187 0.059 0.000
H8 1.143 -2.489 0.000
H9 2.218 0.083 0.000
H10 -0.993 2.633 0.000
H11 0.548 2.612 0.889
H12 0.548 2.612 -0.889

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.40591.40072.29912.28653.78112.12582.12163.33464.12594.38104.3810
C21.40592.26411.39682.29512.62171.08343.26653.34642.77123.33573.3357
C31.40072.26412.31141.39583.79003.26571.08262.22004.46924.22194.2219
C42.29911.39682.31141.48201.52402.27863.38562.30132.17552.18102.1810
C52.28652.29511.39581.48202.68633.37042.28061.08553.57313.02303.0230
C63.78112.62173.79001.52402.68633.09534.84083.06061.10091.10181.1018
H72.12581.08343.26572.27863.37043.09534.19354.40522.83743.84613.8461
H82.12163.26651.08263.38562.28064.84084.19352.78815.55005.21245.2124
H93.33463.34642.22002.30131.08553.06064.40522.78814.10033.15793.1579
H104.12592.77124.46922.17553.57311.10092.83745.55004.10031.77971.7797
H114.38103.33574.22192.18103.02301.10183.84615.21243.15791.77971.7775
H124.38103.33574.22192.18103.02301.10183.84615.21243.15791.77971.7775

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 110.232 O1 C2 H7 116.697
O1 C3 C5 109.694 O1 C3 H8 116.792
C2 O1 C3 107.547 C2 C4 C5 105.696
C2 C4 C6 127.639 C3 C5 C4 106.831
C3 C5 H9 126.493 C4 C2 H7 133.071
C4 C5 H9 126.676 C4 C6 H10 110.921
C4 C6 H11 111.311 C4 C6 H12 111.311
C5 C3 H8 133.514 C5 C4 C6 126.665
H10 C6 H11 107.794 H10 C6 H12 107.794
H11 C6 H12 107.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability