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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-269.836817
Energy at 298.15K-269.846142
HF Energy-268.920849
Nuclear repulsion energy238.678961
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/TZVP
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 3120 2.65      
2 A 3197 3030 11.45      
3 A 3190 3024 27.90      
4 A 3167 3002 9.17      
5 A 3149 2985 21.64      
6 A 3088 2927 17.44      
7 A 3087 2926 50.76      
8 A 3075 2914 38.34      
9 A 1719 1630 39.57      
10 A 1541 1461 0.90      
11 A 1516 1437 5.70      
12 A 1515 1436 1.72      
13 A 1493 1415 7.73      
14 A 1441 1366 16.78      
15 A 1427 1353 2.51      
16 A 1350 1280 10.02      
17 A 1290 1223 41.02      
18 A 1271 1205 18.77      
19 A 1227 1163 3.53      
20 A 1212 1148 44.92      
21 A 1104 1047 1.01      
22 A 1075 1019 1.61      
23 A 1052 997 41.08      
24 A 1040 986 8.13      
25 A 982 930 12.86      
26 A 960 910 9.41      
27 A 926 878 29.72      
28 A 884 838 11.19      
29 A 705 668 32.98      
30 A 667 632 1.61      
31 A 634 601 2.07      
32 A 543 514 1.64      
33 A 340 322 2.40      
34 A 239 227 2.56      
35 A 199 189 8.04      
36 A 173 164 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 26883.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 25482.5 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/TZVP
ABC
0.25333 0.10974 0.08076

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.320 -0.760 0.247
H2 -2.101 -1.442 -0.089
H3 -1.245 -0.793 1.337
O4 -0.013 -1.094 -0.257
C5 -1.493 0.708 -0.145
H6 -2.247 1.171 0.489
H7 -1.758 0.806 -1.205
C8 -0.101 1.133 0.059
H9 0.238 2.116 0.201
C10 2.157 0.013 0.055
H11 2.594 -0.377 -0.867
H12 2.539 1.018 0.227
H13 2.476 -0.632 0.876
C14 0.692 0.053 -0.035

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.08981.09361.44031.52902.15562.17952.25913.27083.56754.08744.24913.85012.1885
H21.08981.78562.12352.23472.68022.53293.26364.26744.50234.87665.26124.74723.1685
H31.09361.78562.03732.12452.36303.04672.57913.45693.72394.44604.33933.75262.5200
O41.44032.12352.03732.33453.26782.74792.25073.25182.45612.77153.34762.77361.3644
C51.52902.23472.12452.33451.08871.09611.47012.25813.72184.28994.06164.31232.2843
H62.15562.68022.36303.26781.08871.80032.18922.67394.57505.26034.79615.07063.1883
H72.17952.53293.04672.74791.09611.80032.10922.77024.18884.52224.53424.93192.8175
C82.25913.26362.57912.25071.47012.18922.10921.04932.52103.22482.64813.22871.3432
H93.27084.26743.45693.25182.25812.67392.77021.04932.85133.59252.55033.60802.1255
C103.56754.50233.72392.45613.72184.57504.18882.52102.85131.09221.08861.09151.4685
H114.08744.87664.44602.77154.28995.26034.52223.22483.59251.09221.77331.76572.1198
H124.24915.26124.33933.34764.06164.79614.53422.64812.55031.08861.77331.77412.1002
H133.85014.74723.75262.77364.31235.07064.93193.22873.60801.09151.76571.77412.1169
C142.18853.16852.52001.36442.28433.18832.81751.34322.12551.46852.11982.10022.1169

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 102.540 C1 C5 H6 109.720
C1 C5 H7 111.173 C1 C5 C8 97.730
H2 C1 H3 109.731 H2 C1 O4 113.408
H2 C1 C5 116.139 H3 C1 O4 106.223
H3 C1 C5 107.035 O4 C1 C5 103.622
O4 C14 C8 112.447 O4 C14 C10 120.176
C5 C8 H9 126.539 C5 C8 C14 108.493
H6 C5 H7 110.968 H6 C5 C8 116.858
H7 C5 C8 109.696 C8 C14 C10 127.370
H9 C8 C14 124.886 H11 C10 H12 108.805
H11 C10 H13 107.918 H11 C10 C14 110.899
H12 C10 H13 108.931 H12 C10 C14 109.533
H13 C10 C14 110.702
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability