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 C5H12O (Propane, 2-methoxy-2-methyl-)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-273.001652
Energy at 298.15K-273.014954
Nuclear repulsion energy269.890173
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 B3LYP/6-31+G**
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 3124 3012 80.17      
2 A 3123 3011 5.20      
3 A 3117 3006 37.78      
4 A 3113 3002 31.86      
5 A 3050 2941 6.09      
6 A 3042 2933 32.81      
7 A 3003 2895 58.92      
8 A 1527 1473 13.71      
9 A 1516 1462 6.18      
10 A 1505 1451 3.30      
11 A 1493 1440 1.14      
12 A 1476 1423 0.79      
13 A 1426 1375 11.39      
14 A 1401 1351 16.41      
15 A 1286 1240 15.04      
16 A 1228 1184 94.15      
17 A 1203 1160 3.16      
18 A 1113 1073 106.31      
19 A 1043 1006 4.64      
20 A 921 888 0.04      
21 A 854 823 22.36      
22 A 724 698 6.04      
23 A 506 488 1.43      
24 A 413 398 0.73      
25 A 363 350 0.69      
26 A 285 274 0.61      
27 A 258 249 0.35      
28 A 3124 3013 36.52      
29 A 3117 3006 4.37      
30 A 3109 2998 0.51      
31 A 3057 2947 73.46      
32 A 3039 2930 10.95      
33 A 1511 1457 0.30      
34 A 1496 1442 7.53      
35 A 1491 1438 0.33      
36 A 1476 1423 0.00      
37 A 1399 1349 17.73      
38 A 1254 1209 20.62      
39 A 1174 1132 1.63      
40 A 1035 998 2.60      
41 A 957 922 0.04      
42 A 910 878 0.15      
43 A 458 442 6.34      
44 A 338 326 1.58      
45 A 280 270 1.23      
46 A 230 222 1.44      
47 A 186 179 1.28      
48 A 64 62 3.87      

Unscaled Zero Point Vibrational Energy (zpe) 35907.6 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 34622.1 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 B3LYP/6-31+G**
ABC
0.14515 0.09005 0.08995

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.777 -0.816 0.000
C2 0.000 0.404 0.000
C3 -1.067 1.504 0.000
C4 -0.084 -2.052 0.000
H5 -0.853 -2.829 0.000
H6 -0.603 2.496 0.000
C7 0.866 0.504 1.267
C8 0.866 0.504 -1.267
H9 0.541 -2.185 0.893
H10 0.541 -2.185 -0.893
H11 0.248 0.375 -2.161
H12 0.248 0.375 2.161
H13 1.346 1.486 1.320
H14 1.346 1.486 -1.320
H15 1.661 -0.249 1.283
H16 1.661 -0.249 -1.283
H17 -1.702 1.415 -0.886
H18 -1.702 1.415 0.886

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
O11.44632.33831.41732.01423.31682.45892.45892.10002.10002.67222.67223.39873.39872.81262.81262.57262.5726
C21.44631.53252.45773.34332.17751.53791.53792.79142.79142.17582.17582.17402.17402.19792.19792.16922.1692
C32.33831.53253.68994.33841.09492.51822.51824.12224.12222.77042.77042.75012.75013.48693.48691.09431.0943
C41.41732.45773.68991.09284.57813.00693.00691.09871.09873.26703.26704.03884.03882.81852.81853.92753.9275
H52.01423.34334.33841.09285.33093.95803.95801.77721.77724.01844.01845.02005.02003.82393.82394.41764.4176
H63.31682.17751.09494.57815.33092.78092.78094.90094.90093.14583.14582.56142.56143.78253.78251.77851.7785
C72.45891.53792.51823.00693.95802.78092.53392.73353.46403.48611.09491.09512.80871.09472.77513.47312.7516
C82.45891.53792.51823.00693.95802.78092.53393.46402.73351.09493.48612.80871.09512.77511.09472.75163.4731
H92.10002.79144.12221.09871.77724.90092.73353.46401.78693.99622.87143.78244.36162.26973.12054.59984.2416
H102.10002.79144.12221.09871.77724.90093.46402.73351.78692.87143.99624.36163.78243.12052.26974.24164.5998
H112.67222.17582.77043.26704.01843.14583.48611.09493.99622.87144.32293.81601.77483.77501.77672.55173.7647
H122.67222.17582.77043.26704.01843.14581.09493.48612.87143.99624.32291.77483.81601.77673.77503.76472.5517
H133.39872.17402.75014.03885.02002.56141.09512.80873.78244.36163.81601.77482.63991.76413.14443.76363.0799
H143.39872.17402.75014.03885.02002.56142.80871.09514.36163.78241.77483.81602.63993.14441.76413.07993.7636
H152.81262.19793.48692.81853.82393.78251.09472.77512.26973.12053.77501.77671.76413.14442.56634.33413.7731
H162.81262.19793.48692.81853.82393.78252.77511.09473.12052.26971.77673.77503.14441.76412.56633.77314.3341
H172.57262.16921.09433.92754.41761.77853.47312.75164.59984.24162.55173.76473.76363.07994.33413.77311.7724
H182.57262.16921.09433.92754.41761.77852.75163.47314.24164.59983.76472.55173.07993.76363.77314.33411.7724

picture of Propane, 2-methoxy-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 103.397 O1 C2 C7 110.932
O1 C2 C8 110.932 O1 C4 H5 106.009
O1 C4 H9 112.544 O1 C4 H10 112.544
C2 O1 C4 118.237 C2 C3 H6 110.847
C2 C3 H17 110.220 C2 C3 H18 110.220
C2 C7 H12 110.336 C2 C7 H13 110.178
C2 C7 H15 112.111 C2 C8 H11 110.336
C2 C8 H14 110.178 C2 C8 H16 112.111
C3 C2 C7 110.200 C3 C2 C8 110.200
H5 C4 H9 108.374 H5 C4 H10 108.374
H6 C3 H17 108.664 H6 C3 H18 108.664
C7 C2 C8 110.943 H9 C4 H10 108.809
H11 C8 H14 108.273 H11 C8 H16 108.475
H12 C7 H13 108.273 H12 C7 H15 108.475
H13 C7 H15 107.341 H14 C8 H16 107.341
H17 C3 H18 108.158
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.273     -0.477
2 C 0.000     0.691
3 C -0.443     -0.514
4 C -0.155     0.033
5 H 0.142     0.077
6 H 0.141     0.126
7 C -0.436     -0.459
8 C -0.436     -0.459
9 H 0.125     0.032
10 H 0.125     0.032
11 H 0.158     0.124
12 H 0.158     0.124
13 H 0.149     0.101
14 H 0.149     0.101
15 H 0.143     0.111
16 H 0.143     0.111
17 H 0.156     0.124
18 H 0.156     0.124


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.368 0.095 0.000 1.372
CHELPG        
AIM        
ESP 1.402 0.071 0.000 1.403


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.250 -0.913 0.000
y -0.913 -37.751 0.000
z 0.000 0.000 -40.526
Traceless
 xyz
x -3.111 -0.913 0.000
y -0.913 3.637 0.000
z 0.000 0.000 -0.526
Polar
3z2-r2-1.052
x2-y2-4.499
xy-0.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.295 -0.080 0.000
y -0.080 10.503 0.000
z 0.000 0.000 9.475


<r2> (average value of r2) Å2
<r2> 181.885
(<r2>)1/2 13.486