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: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-272.873663
Energy at 298.15K-272.886982
Nuclear repulsion energy249.370086
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 B1B95/6-311G*
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' 3140 3010 37.70      
2 A' 3121 2992 45.65      
3 A' 3051 2924 60.19      
4 A' 3045 2919 22.18      
5 A' 3032 2906 24.34      
6 A' 2984 2860 91.12      
7 A' 2959 2836 41.38      
8 A' 1542 1478 2.56      
9 A' 1523 1460 4.19      
10 A' 1518 1455 15.43      
11 A' 1506 1443 0.82      
12 A' 1498 1436 0.06      
13 A' 1489 1427 0.02      
14 A' 1440 1380 27.77      
15 A' 1419 1360 3.69      
16 A' 1390 1333 1.33      
17 A' 1296 1242 3.89      
18 A' 1238 1187 49.84      
19 A' 1189 1140 146.85      
20 A' 1140 1093 12.33      
21 A' 1091 1046 0.98      
22 A' 1055 1011 2.40      
23 A' 1003 961 24.09      
24 A' 915 877 5.93      
25 A' 484 464 0.96      
26 A' 382 366 2.95      
27 A' 308 295 0.86      
28 A' 132 127 0.89      
29 A" 3117 2988 78.19      
30 A" 3095 2967 34.87      
31 A" 3059 2933 4.93      
32 A" 3028 2903 75.64      
33 A" 2986 2863 72.47      
34 A" 1512 1450 9.49      
35 A" 1499 1437 8.39      
36 A" 1334 1278 0.08      
37 A" 1323 1268 0.04      
38 A" 1260 1208 3.19      
39 A" 1204 1154 6.29      
40 A" 1180 1131 0.01      
41 A" 956 917 0.02      
42 A" 815 781 0.64      
43 A" 741 711 3.25      
44 A" 250 240 1.25      
45 A" 233 224 2.11      
46 A" 136 131 1.46      
47 A" 98 94 1.36      
48 A" 72 69 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 36392.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 34885.6 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 B1B95/6-311G*
ABC
0.55282 0.04071 0.03930

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.471 2.763 0.000
C2 1.422 1.243 0.000
C3 -1.539 -2.606 0.000
O4 -1.402 -1.213 0.000
C5 -0.056 -0.809 0.000
C6 0.000 0.701 0.000
H7 -2.605 -2.830 0.000
H8 2.498 3.132 0.000
H9 0.972 3.174 0.880
H10 0.972 3.174 -0.880
H11 1.960 0.860 0.874
H12 1.960 0.860 -0.874
H13 -1.081 -3.059 0.890
H14 -1.081 -3.059 -0.890
H15 -0.544 1.068 -0.876
H16 -0.544 1.068 0.876
H17 0.461 -1.214 -0.885
H18 0.461 -1.214 0.885

Atom - Atom Distances (Å)
  C1 C2 C3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52066.15534.90563.88442.53286.92061.09161.09261.09262.15032.15036.41876.41872.77502.77504.19704.1970
C21.52064.85663.74302.52881.52205.72782.17452.16972.16971.09551.09555.05635.05632.15942.15942.78242.7824
C36.15534.85661.39962.33043.64791.08897.01676.36346.36345.00225.00221.09871.09873.90583.90582.59302.5930
O44.90563.74301.39961.40572.37292.01515.83945.06565.06564.04544.04542.07412.07412.58982.58982.06252.0625
C53.88442.52882.33041.40571.51103.25314.69674.20674.20672.75912.75912.62802.62802.12772.12771.10181.1018
C62.53281.52203.64792.37291.51104.38803.48622.79932.79932.15182.15184.01244.01241.09431.09432.15902.1590
H76.92065.72781.08892.01513.25314.38807.84837.04417.04415.93445.93441.77961.77964.49544.49543.57713.5771
H81.09162.17457.01675.83944.69673.48627.84831.76261.76262.49382.49387.20697.20693.77953.77954.88094.8809
H91.09262.16976.36345.06564.20672.79937.04411.76261.76082.51623.06776.56266.79723.13362.59514.75714.4174
H101.09262.16976.36345.06564.20672.79937.04411.76261.76083.06772.51626.79726.56262.59513.13364.41744.7571
H112.15031.09555.00224.04542.75912.15185.93442.49382.51623.06771.74884.96055.26493.06182.51203.10522.5586
H122.15031.09555.00224.04542.75912.15185.93442.49383.06772.51621.74885.26494.96052.51203.06182.55863.1052
H136.41875.05631.09872.07412.62804.01241.77967.20696.56266.79724.96055.26491.77994.52084.16162.98902.4049
H146.41875.05631.09872.07412.62804.01241.77967.20696.79726.56265.26494.96051.77994.16164.52082.40492.9890
H152.77502.15943.90582.58982.12771.09434.49543.77953.13362.59513.06182.51204.52084.16161.75222.49263.0520
H162.77502.15943.90582.58982.12771.09434.49543.77952.59513.13362.51203.06184.16164.52081.75223.05202.4926
H174.19702.78242.59302.06251.10182.15903.57714.88094.75714.41743.10522.55862.98902.40492.49263.05201.7701
H184.19702.78242.59302.06251.10182.15903.57714.88094.41744.75712.55863.10522.40492.98903.05202.49261.7701

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 112.700 C1 C2 H11 109.485
C1 C2 H12 109.485 C2 C1 H8 111.649
C2 C1 H9 111.202 C2 C1 H10 111.202
C2 C6 C5 112.973 C2 C6 H15 110.184
C2 C6 H16 110.184 C3 O4 C5 112.346
O4 C3 H7 107.492 O4 C3 H13 111.676
O4 C3 H14 111.676 O4 C5 C6 108.836
O4 C5 H17 110.090 O4 C5 H18 110.090
C5 C6 H15 108.446 C5 C6 H16 108.446
C6 C2 H11 109.516 C6 C2 H12 109.516
C6 C5 H17 110.464 C6 C5 H18 110.464
H7 C3 H13 108.870 H7 C3 H14 108.870
H8 C1 H9 107.604 H8 C1 H10 107.604
H9 C1 H10 107.374 H11 C2 H12 105.913
H13 C3 H14 108.190 H15 C6 H16 106.371
H17 C5 H18 106.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.643      
2 C -0.439      
3 C -0.450      
4 O -0.324      
5 C -0.194      
6 C -0.456      
7 H 0.220      
8 H 0.219      
9 H 0.217      
10 H 0.217      
11 H 0.213      
12 H 0.213      
13 H 0.193      
14 H 0.193      
15 H 0.223      
16 H 0.223      
17 H 0.188      
18 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.930 -0.677 0.000 1.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.432 1.163 0.000
y 1.163 -36.889 0.000
z 0.000 0.000 -39.644
Traceless
 xyz
x -3.165 1.163 0.000
y 1.163 3.649 0.000
z 0.000 0.000 -0.484
Polar
3z2-r2-0.967
x2-y2-4.543
xy1.163
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.196 1.261 0.000
y 1.261 10.569 0.000
z 0.000 0.000 8.144


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000