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 (Butane, 1-methoxy-)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-269.583928
Energy at 298.15K-269.596894
Nuclear repulsion energy243.169279
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/STO-3G
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' 3479 3105 2.44      
2 A' 3430 3061 2.55      
3 A' 3345 2985 6.13      
4 A' 3334 2975 1.82      
5 A' 3311 2954 2.93      
6 A' 3229 2882 14.38      
7 A' 3218 2872 18.66      
8 A' 1700 1517 2.36      
9 A' 1690 1508 0.91      
10 A' 1679 1498 3.11      
11 A' 1675 1495 2.24      
12 A' 1665 1486 1.16      
13 A' 1592 1421 5.89      
14 A' 1579 1409 0.30      
15 A' 1542 1376 16.26      
16 A' 1497 1336 9.94      
17 A' 1395 1245 17.53      
18 A' 1277 1140 6.36      
19 A' 1203 1074 2.69      
20 A' 1202 1073 21.51      
21 A' 1140 1017 0.90      
22 A' 1103 985 0.14      
23 A' 1025 915 1.92      
24 A' 974 869 4.07      
25 A' 515 460 0.73      
26 A' 378 337 0.88      
27 A' 330 295 0.25      
28 A' 141 126 0.68      
29 A" 3481 3107 4.18      
30 A" 3455 3083 4.66      
31 A" 3436 3066 0.54      
32 A" 3356 2995 13.31      
33 A" 3327 2969 20.03      
34 A" 1688 1507 3.56      
35 A" 1650 1472 3.78      
36 A" 1427 1274 0.01      
37 A" 1402 1251 0.01      
38 A" 1338 1194 0.03      
39 A" 1234 1101 5.14      
40 A" 1182 1054 0.82      
41 A" 1028 918 0.07      
42 A" 872 778 0.77      
43 A" 789 704 5.84      
44 A" 249 222 1.68      
45 A" 230 205 0.03      
46 A" 141 126 0.78      
47 A" 90 81 2.00      
48 A" 70 63 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 39546.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 35291.2 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 B3LYP/STO-3G
ABC
0.51401 0.03891 0.03747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.564 2.795 0.000
C2 1.476 1.242 0.000
C3 -1.573 -2.664 0.000
O4 -1.508 -1.196 0.000
C5 -0.080 -0.824 0.000
C6 0.000 0.735 0.000
H7 -2.646 -2.934 0.000
H8 2.615 3.123 0.000
H9 1.071 3.212 0.892
H10 1.071 3.212 -0.892
H11 1.997 0.846 0.889
H12 1.997 0.846 -0.889
H13 -1.095 -3.111 0.899
H14 -1.095 -3.111 -0.899
H15 -0.527 1.120 -0.890
H16 -0.527 1.120 0.890
H17 0.442 -1.231 -0.898
H18 0.442 -1.231 0.898

Atom - Atom Distances (Å)
  C1 C2 C3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.55576.29655.03673.97562.58677.11001.10091.10071.10072.18612.18616.53976.53972.82332.82334.27484.2748
C21.55574.95533.85322.58691.56055.86792.19872.20002.20001.10411.10415.13525.13522.19502.19502.82662.8266
C36.29654.95531.46912.36923.74541.10657.14346.50536.50535.08485.08481.11281.11284.02554.02552.63092.6309
O45.03673.85321.46911.47502.45012.07755.97085.18485.18484.15254.15252.15572.15572.66822.66822.14672.1467
C53.97562.58692.36921.47501.56143.32194.77954.29134.29132.80982.80982.65882.65882.18432.18431.11531.1153
C62.58671.56053.74542.45011.56144.52383.54112.84252.84252.18872.18874.09914.09911.10361.10362.20572.2057
H77.11005.86791.10652.07753.32194.52388.02287.23847.23846.05296.05291.80211.80214.66034.66033.63943.6394
H81.10092.19877.14345.97084.77953.54118.02281.78491.78492.52132.52137.31007.31003.83083.83084.94774.9477
H91.10072.20006.50535.18484.29132.84257.23841.78491.78362.54103.10296.68446.92023.17932.63304.83094.4873
H101.10072.20006.50535.18484.29132.84257.23841.78491.78363.10292.54106.92026.68442.63303.17934.48734.8309
H112.18611.10415.08484.15252.80982.18876.05292.52132.54103.10291.77815.02185.33083.10012.53873.14992.5941
H122.18611.10415.08484.15252.80982.18876.05292.52133.10292.54101.77815.33085.02182.53873.10012.59413.1499
H136.53975.13521.11282.15572.65884.09911.80217.31006.68446.92025.02185.33081.79894.62914.26923.02142.4288
H146.53975.13521.11282.15572.65884.09911.80217.31006.92026.68445.33085.02181.79894.26924.62912.42883.0214
H152.82332.19504.02552.66822.18431.10364.66033.83083.17932.63303.10012.53874.62914.26921.78022.54243.1081
H162.82332.19504.02552.66822.18431.10364.66033.83082.63303.17932.53873.10014.26924.62911.78023.10812.5424
H174.27482.82662.63092.14671.11532.20573.63944.94774.83094.48733.14992.59413.02142.42882.54243.10811.7955
H184.27482.82662.63092.14671.11532.20573.63944.94774.48734.83092.59413.14992.42883.02143.10812.54241.7955

picture of Butane, 1-methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 112.211 C1 C2 H11 109.373
C1 C2 H12 109.373 C2 C1 H8 110.544
C2 C1 H9 110.656 C2 C1 H10 110.656
C2 C6 C5 111.916 C2 C6 H15 109.766
C2 C6 H16 109.766 C3 O4 C5 107.172
O4 C3 H7 106.692 O4 C3 H13 112.489
O4 C3 H14 112.489 O4 C5 C6 107.561
O4 C5 H17 111.180 O4 C5 H18 111.180
C5 C6 H15 108.885 C5 C6 H16 108.885
C6 C2 H11 109.251 C6 C2 H12 109.251
C6 C5 H17 109.863 C6 C5 H18 109.863
H7 C3 H13 108.593 H7 C3 H14 108.593
H8 C1 H9 108.332 H8 C1 H10 108.332
H9 C1 H10 108.235 H11 C2 H12 107.256
H13 C3 H14 107.863 H15 C6 H16 107.514
H17 C5 H18 107.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 C -0.128      
3 C -0.128      
4 O -0.190      
5 C -0.042      
6 C -0.134      
7 H 0.081      
8 H 0.072      
9 H 0.072      
10 H 0.072      
11 H 0.068      
12 H 0.068      
13 H 0.067      
14 H 0.067      
15 H 0.074      
16 H 0.074      
17 H 0.061      
18 H 0.061      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.976 -0.549 0.000 1.119
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.552 0.356 0.000
y 0.356 -34.162 0.000
z 0.000 0.000 -36.642
Traceless
 xyz
x -3.150 0.356 0.000
y 0.356 3.435 0.000
z 0.000 0.000 -0.285
Polar
3z2-r2-0.569
x2-y2-4.390
xy0.356
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.776 0.990 0.000
y 0.990 5.528 0.000
z 0.000 0.000 3.923


<r2> (average value of r2) Å2
<r2> 301.844
(<r2>)1/2 17.374