return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H10O (Propane, 2-methoxy-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-231.345077
Energy at 298.15K-231.356281
HF Energy-230.855357
Nuclear repulsion energy194.691364
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 MP2/3-21G*
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 3174 3019 39.06      
2 A 3171 3017 11.47      
3 A 3169 3015 6.13      
4 A 3165 3010 62.12      
5 A 3158 3004 0.34      
6 A 3115 2963 63.04      
7 A 3108 2957 11.14      
8 A 3090 2940 8.96      
9 A 3086 2936 4.29      
10 A 3061 2912 27.50      
11 A 1621 1542 14.05      
12 A 1609 1531 3.01      
13 A 1604 1526 1.52      
14 A 1599 1521 7.61      
15 A 1589 1511 0.00      
16 A 1585 1507 3.08      
17 A 1537 1462 2.44      
18 A 1487 1415 8.14      
19 A 1473 1401 11.34      
20 A 1428 1358 8.15      
21 A 1415 1346 10.94      
22 A 1252 1191 1.59      
23 A 1229 1169 68.07      
24 A 1208 1149 16.21      
25 A 1186 1129 0.58      
26 A 1162 1105 19.71      
27 A 1038 987 41.79      
28 A 995 947 1.83      
29 A 952 905 0.32      
30 A 889 846 5.57      
31 A 762 725 4.69      
32 A 543 516 2.79      
33 A 392 373 10.62      
34 A 374 356 1.73      
35 A 303 289 1.05      
36 A 269 255 1.61      
37 A 263 250 0.09      
38 A 197 187 2.45      
39 A 72 69 4.19      

Unscaled Zero Point Vibrational Energy (zpe) 30663.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 29170.2 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 MP2/3-21G*
ABC
0.20799 0.13397 0.10588

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.737 -0.000 -0.432
H2 -1.590 -0.890 -1.056
H3 -2.760 -0.001 -0.049
H4 -1.591 0.891 -1.054
O5 -0.884 -0.001 0.765
C6 1.020 -1.279 -0.259
H7 2.113 -1.338 -0.257
H8 0.613 -2.157 0.252
H9 0.677 -1.281 -1.299
C10 1.019 1.280 -0.258
H11 2.112 1.340 -0.256
H12 0.677 1.281 -1.298
H13 0.611 2.158 0.253
C14 0.567 0.000 0.477
H15 1.002 0.000 1.482

Atom - Atom Distances (Å)
  C1 H2 H3 H4 O5 C6 H7 H8 H9 C10 H11 H12 H13 C14 H15
C11.09671.09211.09671.47013.04444.08043.26292.86743.04384.08002.86703.26172.47743.3418
H21.09671.78131.78142.14572.75623.81482.85832.31343.48574.39523.14803.98032.79183.7350
H31.09211.78131.78132.04513.99565.05794.01463.87483.99555.05793.87514.01433.36874.0617
H41.09671.78141.78132.14573.48734.39653.98233.15012.75583.81472.31402.85642.79213.7348
O51.47012.14572.04512.14572.51133.43772.67482.88692.51143.43782.88722.67491.47962.0176
C63.04442.75623.99563.48732.51131.09531.09421.09492.55972.83842.78503.49891.54352.1604
H74.08043.81485.05794.39653.43771.09531.78371.77482.83832.67873.16403.83932.17262.4601
H83.26292.85834.01463.98232.67481.09421.78371.78283.49893.83933.77274.31512.16962.5136
H92.86742.31343.87483.15012.88691.09491.77481.78282.78513.16452.56193.77272.19193.0786
C103.04383.48573.99552.75582.51142.55972.83833.49892.78511.09531.09491.09421.54352.1604
H114.08004.39525.05793.81473.43782.83842.67873.83933.16451.09531.77481.78372.17262.4599
H122.86703.14803.87512.31402.88722.78503.16403.77272.56191.09491.77481.78282.19193.0786
H133.26173.98034.01432.85642.67493.49893.83934.31513.77271.09421.78371.78282.16962.5138
C142.47742.79183.36872.79211.47961.54352.17262.16962.19191.54352.17262.19192.16961.0952
H153.34183.73504.06173.73482.01762.16042.46012.51363.07862.16042.45993.07862.51381.0952

picture of Propane, 2-methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O5 C14 114.258 H2 C1 H3 108.941
H2 C1 H4 108.612 H2 C1 O5 112.619
H3 C1 H4 108.942 H3 C1 O5 104.960
H4 C1 O5 112.617 O5 C14 C6 112.318
O5 C14 C10 112.329 O5 C14 H15 102.147
C6 C14 C10 112.026 C6 C14 H15 108.726
H7 C6 H8 109.114 H7 C6 H9 108.259
H7 C6 C14 109.671 H8 C6 H9 109.053
H8 C6 C14 109.496 H9 C6 C14 111.211
C10 C14 H15 108.724 H11 C10 H12 108.259
H11 C10 H13 109.112 H11 C10 C14 109.669
H12 C10 H13 109.054 H12 C10 C14 111.213
H13 C10 C14 109.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability