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/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-51.458147
Energy at 298.15K-51.471360
Nuclear repulsion energy142.417690
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/CEP-121G*
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' 3103 3008 48.71      
2 A' 3078 2984 61.84      
3 A' 3018 2925 61.56      
4 A' 3008 2916 27.00      
5 A' 2997 2905 39.35      
6 A' 2958 2867 104.37      
7 A' 2936 2846 41.89      
8 A' 1536 1489 1.66      
9 A' 1520 1473 3.15      
10 A' 1510 1464 12.32      
11 A' 1504 1458 0.56      
12 A' 1498 1452 0.39      
13 A' 1482 1437 0.70      
14 A' 1430 1386 31.64      
15 A' 1417 1374 2.80      
16 A' 1384 1341 0.58      
17 A' 1291 1251 2.41      
18 A' 1218 1181 31.50      
19 A' 1144 1109 151.29      
20 A' 1118 1084 37.15      
21 A' 1055 1022 0.90      
22 A' 1016 985 2.02      
23 A' 968 939 23.02      
24 A' 892 864 6.66      
25 A' 480 465 0.98      
26 A' 373 361 2.98      
27 A' 307 298 0.81      
28 A' 135 131 0.89      
29 A" 3078 2984 121.59      
30 A" 3060 2966 26.28      
31 A" 3023 2930 8.28      
32 A" 3003 2911 91.96      
33 A" 2967 2877 67.65      
34 A" 1509 1462 7.10      
35 A" 1493 1447 5.50      
36 A" 1322 1281 0.08      
37 A" 1310 1270 0.00      
38 A" 1247 1209 3.03      
39 A" 1191 1154 5.97      
40 A" 1166 1130 0.28      
41 A" 946 917 0.08      
42 A" 808 784 0.57      
43 A" 736 713 2.30      
44 A" 241 233 1.01      
45 A" 224 217 2.58      
46 A" 133 129 1.55      
47 A" 93 90 1.18      
48 A" 71 69 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 35996.4 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 34894.9 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/CEP-121G*
ABC
0.54129 0.03949 0.03812

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.509 2.798 0.000
C2 1.448 1.255 0.000
C3 -1.590 -2.633 0.000
O4 -1.438 -1.218 0.000
C5 -0.065 -0.816 0.000
C6 0.000 0.717 0.000
H7 -2.665 -2.845 0.000
H8 2.547 3.156 0.000
H9 1.011 3.214 0.886
H10 1.011 3.214 -0.886
H11 1.985 0.869 0.881
H12 1.985 0.869 -0.881
H13 -1.135 -3.091 0.896
H14 -1.135 -3.091 -0.896
H15 -0.540 1.089 -0.882
H16 -0.540 1.089 0.882
H17 0.448 -1.225 -0.891
H18 0.448 -1.225 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.54406.25334.98113.94192.57087.01891.09801.09871.09872.17262.17266.51756.51752.81032.81034.25464.2546
C21.54404.93453.80052.56491.54485.80732.19602.19432.19431.10101.10105.13475.13472.18152.18152.81842.8184
C36.25334.93451.42372.37243.70821.09547.11586.46136.46135.08175.08171.10431.10433.96723.96722.63292.6329
O44.98113.80051.42371.43062.41042.03795.91725.14095.14094.10444.10442.09882.09882.62812.62812.08592.0859
C53.94192.56492.37241.43061.53423.29784.75424.26484.26482.79602.79602.66912.66912.15292.15291.10651.1065
C62.57081.54483.70822.41041.53424.44823.52692.83672.83672.17662.17664.07334.07331.09961.09962.18262.1826
H77.01895.80731.09542.03793.29784.44827.94857.14267.14266.01586.01581.79011.79014.55754.55753.62063.6206
H81.09802.19607.11585.91724.75423.52697.94851.77421.77422.51422.51427.30707.30703.81873.81874.93894.9389
H91.09872.19436.46135.14094.26482.83677.14261.77421.77282.53893.09336.66116.89533.17042.63124.81484.4746
H101.09872.19436.46135.14094.26482.83677.14261.77421.77283.09332.53896.89536.66112.63123.17044.47464.8148
H112.17261.10105.08174.10442.79602.17666.01582.51422.53893.09331.76135.04185.34553.08722.53443.14432.5975
H122.17261.10105.08174.10442.79602.17666.01582.51423.09332.53891.76135.34555.04182.53443.08722.59753.1443
H136.51755.13471.10432.09882.66914.07331.79017.30706.66116.89535.04185.34551.79124.58194.22293.03032.4474
H146.51755.13471.10432.09882.66914.07331.79017.30706.89536.66115.34555.04181.79124.22294.58192.44743.0303
H152.81032.18153.96722.62812.15291.09964.55753.81873.17042.63123.08722.53444.58194.22291.76452.51613.0784
H162.81032.18153.96722.62812.15291.09964.55753.81872.63123.17042.53443.08724.22294.58191.76453.07842.5161
H174.25462.81842.63292.08591.10652.18263.62064.93894.81484.47463.14432.59753.03032.44742.51613.07841.7827
H184.25462.81842.63292.08591.10652.18263.62064.93894.47464.81482.59753.14432.44743.03033.07842.51611.7827

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 112.673 C1 C2 H11 109.305
C1 C2 H12 109.305 C2 C1 H8 111.323
C2 C1 H9 111.150 C2 C1 H10 111.150
C2 C6 C5 112.824 C2 C6 H15 110.023
C2 C6 H16 110.023 C3 O4 C5 112.438
O4 C3 H7 107.272 O4 C3 H13 111.623
O4 C3 H14 111.623 O4 C5 C6 108.734
O4 C5 H17 109.948 O4 C5 H18 109.948
C5 C6 H15 108.529 C5 C6 H16 108.529
C6 C2 H11 109.560 C6 C2 H12 109.560
C6 C5 H17 110.441 C6 C5 H18 110.441
H7 C3 H13 108.934 H7 C3 H14 108.934
H8 C1 H9 107.736 H8 C1 H10 107.736
H9 C1 H10 107.568 H11 C2 H12 106.233
H13 C3 H14 108.391 H15 C6 H16 106.709
H17 C5 H18 107.321
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.520      
2 C -0.246      
3 C -0.325      
4 O -0.258      
5 C -0.155      
6 C -0.262      
7 H 0.180      
8 H 0.168      
9 H 0.157      
10 H 0.157      
11 H 0.143      
12 H 0.143      
13 H 0.138      
14 H 0.138      
15 H 0.152      
16 H 0.152      
17 H 0.118      
18 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.991 -0.715 0.000 1.222
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.890 1.210 0.000
y 1.210 -37.018 0.000
z 0.000 0.000 -39.903
Traceless
 xyz
x -3.429 1.210 0.000
y 1.210 3.879 0.000
z 0.000 0.000 -0.449
Polar
3z2-r2-0.899
x2-y2-4.872
xy1.210
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.760 1.356 0.000
y 1.356 11.106 0.000
z 0.000 0.000 8.658


<r2> (average value of r2) Å2
<r2> 243.402
(<r2>)1/2 15.601