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: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-271.246030
Energy at 298.15K-271.259734
Nuclear repulsion energy249.540521
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 HF/6-311G**
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' 3258 2960 52.70      
2 A' 3219 2924 66.90      
3 A' 3168 2878 48.19      
4 A' 3156 2867 21.61      
5 A' 3146 2858 65.51      
6 A' 3130 2843 79.61      
7 A' 3109 2825 28.71      
8 A' 1657 1505 1.98      
9 A' 1629 1480 3.92      
10 A' 1627 1478 8.09      
11 A' 1618 1470 1.77      
12 A' 1612 1465 0.22      
13 A' 1609 1462 0.45      
14 A' 1571 1427 40.78      
15 A' 1539 1398 0.62      
16 A' 1512 1374 2.75      
17 A' 1410 1281 4.51      
18 A' 1350 1226 91.56      
19 A' 1283 1166 168.94      
20 A' 1220 1108 10.29      
21 A' 1138 1034 1.30      
22 A' 1100 1000 7.09      
23 A' 1074 976 20.76      
24 A' 964 876 5.24      
25 A' 523 475 1.17      
26 A' 407 370 3.01      
27 A' 334 304 0.83      
28 A' 150 136 1.00      
29 A" 3221 2926 151.45      
30 A" 3205 2912 12.93      
31 A" 3170 2880 94.38      
32 A" 3166 2876 6.80      
33 A" 3135 2848 45.46      
34 A" 1615 1467 5.94      
35 A" 1613 1465 6.13      
36 A" 1432 1301 0.00      
37 A" 1428 1298 0.28      
38 A" 1361 1236 4.62      
39 A" 1303 1184 8.63      
40 A" 1275 1158 0.60      
41 A" 1025 932 0.17      
42 A" 877 796 0.79      
43 A" 795 723 1.40      
44 A" 267 242 0.68      
45 A" 235 213 4.52      
46 A" 143 130 1.10      
47 A" 110 100 1.08      
48 A" 78 71 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 38480.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 34959.4 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 HF/6-311G**
ABC
0.56162 0.04047 0.03911

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.476 2.774 0.000
C2 1.427 1.247 0.000
C3 -1.564 -2.604 0.000
O4 -1.385 -1.225 0.000
C5 -0.051 -0.817 0.000
C6 0.000 0.699 0.000
H7 -2.628 -2.798 0.000
H8 2.501 3.134 0.000
H9 0.981 3.181 0.878
H10 0.981 3.181 -0.878
H11 1.960 0.871 0.871
H12 1.960 0.871 -0.871
H13 -1.123 -3.064 0.884
H14 -1.123 -3.064 -0.884
H15 -0.538 1.061 -0.873
H16 -0.538 1.061 0.873
H17 0.461 -1.213 -0.879
H18 0.461 -1.213 0.879

Atom - Atom Distances (Å)
  C1 C2 C3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52756.17744.91683.90202.54606.92011.08601.08681.08682.14812.14816.45136.45132.78412.78414.20694.2069
C21.52754.87573.74392.53851.52825.72742.17092.17012.17011.08881.08885.08635.08632.15802.15802.78522.7852
C36.17744.87571.39062.34123.65461.08197.03136.38056.38055.02525.02521.09001.09003.90473.90472.60912.6091
O44.91683.74391.39061.39522.37082.00495.83925.07735.07734.04274.04272.05772.05772.58942.58942.04502.0450
C53.90202.53852.34121.39521.51713.25054.70314.22134.22132.76652.76652.64222.64222.12772.12771.09191.0919
C62.54601.52823.65462.37081.51714.37463.48992.80912.80912.15212.15214.02584.02581.08731.08732.15462.1546
H76.92015.72741.08192.00493.25054.37467.84147.03867.03865.93915.93911.76581.76584.47464.47463.58163.5816
H81.08602.17097.03135.83924.70313.48997.84141.75571.75572.48422.48427.23377.23373.78043.78044.88134.8813
H91.08682.17016.38055.07734.22132.80917.03861.75571.75522.50913.05856.59016.82153.14062.60784.76074.4246
H101.08682.17016.38055.07734.22132.80917.03861.75571.75523.05852.50916.82156.59012.60783.14064.42464.7607
H112.14811.08885.02524.04272.76652.15215.93912.48422.50913.05851.74294.99935.29863.05292.50583.10742.5673
H122.14811.08885.02524.04272.76652.15215.93912.48423.05852.50911.74295.29864.99932.50583.05292.56733.1074
H136.45135.08631.09002.05772.64224.02581.76587.23376.59016.82154.99935.29861.76884.52204.16683.00782.4364
H146.45135.08631.09002.05772.64224.02581.76587.23376.82156.59015.29864.99931.76884.16684.52202.43643.0078
H152.78412.15803.90472.58942.12771.08734.47463.78043.14062.60783.05292.50584.52204.16681.74502.48423.0398
H162.78412.15803.90472.58942.12771.08734.47463.78042.60783.14062.50583.05294.16684.52201.74503.03982.4842
H174.20692.78522.60912.04501.09192.15463.58164.88134.76074.42463.10742.56733.00782.43642.48423.03981.7587
H184.20692.78522.60912.04501.09192.15463.58164.88134.42464.76072.56733.10742.43643.00783.03982.48421.7587

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 112.855 C1 C2 H11 109.231
C1 C2 H12 109.231 C2 C1 H8 111.202
C2 C1 H9 111.086 C2 C1 H10 111.086
C2 C6 C5 112.929 C2 C6 H15 110.050
C2 C6 H16 110.050 C3 O4 C5 114.368
O4 C3 H7 107.706 O4 C3 H13 111.522
O4 C3 H14 111.522 O4 C5 C6 108.918
O4 C5 H17 110.024 O4 C5 H18 110.024
C5 C6 H15 108.434 C5 C6 H16 108.434
C6 C2 H11 109.493 C6 C2 H12 109.493
C6 C5 H17 110.285 C6 C5 H18 110.285
H7 C3 H13 108.780 H7 C3 H14 108.780
H8 C1 H9 107.802 H8 C1 H10 107.802
H9 C1 H10 107.699 H11 C2 H12 106.327
H13 C3 H14 108.460 H15 C6 H16 106.733
H17 C5 H18 107.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 C -0.213      
3 C 0.001      
4 O -0.470      
5 C 0.137      
6 C -0.207      
7 H 0.094      
8 H 0.091      
9 H 0.087      
10 H 0.087      
11 H 0.087      
12 H 0.087      
13 H 0.065      
14 H 0.065      
15 H 0.097      
16 H 0.097      
17 H 0.063      
18 H 0.063      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.019 -0.817 0.000 1.306
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.791 1.110 0.000
y 1.110 -36.662 0.000
z 0.000 0.000 -39.688
Traceless
 xyz
x -3.615 1.110 0.000
y 1.110 4.077 0.000
z 0.000 0.000 -0.462
Polar
3z2-r2-0.924
x2-y2-5.128
xy1.110
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.728 1.111 0.000
y 1.111 9.848 0.000
z 0.000 0.000 7.815


<r2> (average value of r2) Å2
<r2> 292.400
(<r2>)1/2 17.100