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All results from a given calculation for C5H8O (Furan, 2,3-dihydro-5-methyl-)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-269.295174
Energy at 298.15K-269.304036
HF Energy-268.747868
Nuclear repulsion energy231.390772
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/LANL2DZ
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 3250 3130 6.10      
2 A 3157 3041 44.11      
3 A 3144 3028 22.66      
4 A 3126 3011 19.97      
5 A 3096 2982 22.74      
6 A 3078 2964 62.31      
7 A 3043 2930 48.63      
8 A 3031 2919 26.13      
9 A 1685 1623 27.28      
10 A 1551 1494 1.22      
11 A 1537 1480 11.05      
12 A 1535 1478 1.57      
13 A 1515 1459 10.11      
14 A 1465 1411 11.67      
15 A 1378 1327 4.16      
16 A 1342 1293 8.85      
17 A 1274 1227 25.82      
18 A 1250 1204 1.55      
19 A 1195 1151 53.10      
20 A 1178 1134 3.26      
21 A 1109 1068 2.20      
22 A 1091 1051 1.98      
23 A 1058 1019 5.29      
24 A 1007 970 8.97      
25 A 921 887 55.75      
26 A 913 879 14.77      
27 A 859 827 5.36      
28 A 832 801 25.14      
29 A 724 698 39.80      
30 A 700 674 3.24      
31 A 610 588 2.03      
32 A 523 504 1.21      
33 A 321 309 3.25      
34 A 218 209 11.61      
35 A 155 149 1.75      
36 A 42 40 3.71      

Unscaled Zero Point Vibrational Energy (zpe) 26456.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 25480.0 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/LANL2DZ
ABC
0.23888 0.10284 0.07505

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.435 -0.831 0.037
H2 -1.900 -1.348 -0.816
H3 -1.797 -1.252 0.989
O4 0.054 -1.140 -0.036
C5 -1.571 0.742 -0.027
H6 -2.153 1.124 0.830
H7 -2.072 1.066 -0.958
C8 -0.097 1.201 0.017
H9 0.221 2.243 0.037
C10 2.253 -0.003 0.005
H11 2.593 -0.545 -0.895
H12 2.717 0.998 0.019
H13 2.588 -0.568 0.891
C14 0.745 0.124 0.001

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.10051.10191.52271.57942.22872.23422.43333.49143.78044.14414.53724.12152.3807
H21.10051.81042.11462.25742.98102.42383.23174.25674.44234.56475.24584.86503.1357
H31.10191.81042.11822.24902.40833.03943.13894.14634.35084.82825.13574.43863.0547
O41.52272.11462.11822.48583.27833.19922.34613.38702.47602.74513.41512.75811.4407
C51.57942.25742.24902.48581.10501.10571.54492.33893.89604.44344.29604.45612.3975
H62.22872.98102.40833.27831.10501.79112.21292.74224.62255.31844.93915.03463.1766
H72.23422.42383.03943.19921.10571.79112.20712.76334.55824.93564.88845.27333.1217
C82.43333.23173.13892.34611.54492.21292.20711.08912.64023.33362.82123.33221.3674
H93.49144.25674.14633.38702.33892.74222.76331.08913.02803.77632.78893.77242.1827
C103.78044.44234.35082.47603.89604.62254.55822.64023.02801.10391.10261.10381.5131
H114.14414.56474.82822.74514.44345.31844.93563.33363.77631.10391.79711.78622.1591
H124.53725.24585.13573.41514.29604.93914.88842.82122.78891.10261.79711.79742.1567
H134.12154.86504.43862.75814.45615.03465.27333.33223.77241.10381.78621.79742.1605
C142.38073.13573.05471.44072.39753.17663.12171.36742.18271.51312.15912.15672.1605

picture of Furan, 2,3-dihydro-5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C14 106.874 C1 C5 H6 111.018
C1 C5 H7 111.404 C1 C5 C8 102.299
H2 C1 H3 110.571 H2 C1 O4 106.319
H2 C1 C5 113.580 H3 C1 O4 106.508
H3 C1 C5 112.806 O4 C1 C5 106.500
O4 C14 C8 113.308 O4 C14 C10 113.889
C5 C8 H9 124.320 C5 C8 C14 110.668
H6 C5 H7 108.234 H6 C5 C8 112.183
H7 C5 C8 111.679 C8 C14 C10 132.801
H9 C8 C14 125.000 H11 C10 H12 109.068
H11 C10 H13 108.011 H11 C10 C14 110.205
H12 C10 H13 109.096 H12 C10 C14 110.096
H13 C10 C14 110.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability