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, 1-ethoxy-)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-272.976971
Energy at 298.15K-272.990303
Nuclear repulsion energy250.682008
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 B3PW91/cc-pVTZ
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' 3120 3000 25.09      
2 A' 3109 2990 31.15      
3 A' 3045 2928 20.98      
4 A' 3042 2925 27.43      
5 A' 3032 2915 25.57      
6 A' 2960 2846 90.97      
7 A' 2945 2832 24.07      
8 A' 1528 1469 2.93      
9 A' 1511 1453 6.14      
10 A' 1500 1443 4.01      
11 A' 1494 1436 1.95      
12 A' 1488 1431 1.43      
13 A' 1445 1390 3.52      
14 A' 1408 1354 4.46      
15 A' 1403 1349 26.13      
16 A' 1384 1330 17.94      
17 A' 1326 1275 7.77      
18 A' 1181 1135 55.50      
19 A' 1166 1121 191.34      
20 A' 1116 1073 7.07      
21 A' 1069 1028 6.51      
22 A' 1040 1000 8.72      
23 A' 913 878 5.43      
24 A' 899 865 5.81      
25 A' 491 472 3.27      
26 A' 405 389 0.76      
27 A' 303 291 0.58      
28 A' 137 132 0.36      
29 A" 3122 3002 26.77      
30 A" 3101 2982 57.06      
31 A" 3074 2956 3.06      
32 A" 2981 2867 33.40      
33 A" 2971 2857 76.64      
34 A" 1495 1437 7.38      
35 A" 1476 1419 6.38      
36 A" 1312 1262 0.54      
37 A" 1296 1247 2.26      
38 A" 1264 1216 1.72      
39 A" 1195 1150 6.87      
40 A" 1170 1125 0.63      
41 A" 901 867 1.32      
42 A" 819 788 0.76      
43 A" 763 733 2.00      
44 A" 246 237 0.73      
45 A" 231 223 0.02      
46 A" 151 146 3.04      
47 A" 94 90 1.18      
48 A" 67 64 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 36093.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 34707.3 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 B3PW91/cc-pVTZ
ABC
0.53176 0.04241 0.04077

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.008 2.857 0.000
H2 1.958 3.393 0.000
H3 0.443 3.156 0.884
H4 0.443 3.156 -0.884
C5 1.245 1.365 0.000
H6 1.829 1.067 -0.884
H7 1.829 1.067 0.884
O8 0.000 0.705 0.000
C9 0.119 -0.699 0.000
H10 0.685 -1.032 -0.885
H11 0.685 -1.032 0.885
C12 -1.263 -1.317 0.000
H13 -1.807 -0.954 0.876
H14 -1.807 -0.954 -0.876
C15 -1.216 -2.839 0.000
H16 -0.697 -3.222 -0.882
H17 -0.697 -3.222 0.882
H18 -2.221 -3.264 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 C9 H10 H11 C12 H13 H14 C15 H16 H17 H18
C11.09141.09081.09081.51062.15832.15832.37653.66484.00074.00074.75164.81804.81806.11426.37436.37436.9198
H21.09141.77031.77032.15032.49212.49213.32654.48654.68904.68905.70675.81775.81776.99417.18257.18257.8603
H31.09081.77031.76782.15223.06742.50642.64303.96764.55184.19424.86794.68535.00496.28216.71476.47857.0060
H41.09081.77031.76782.15222.50643.06742.64303.96764.19424.55184.86795.00494.68536.28216.47856.71477.0060
C51.51062.15032.15222.15221.10051.10051.40962.35092.61532.61533.67223.93213.93214.87125.05835.05835.7826
H62.15832.49213.06742.50641.10051.76872.06372.61242.39052.97384.00344.51714.15995.03104.97745.28145.9950
H72.15832.49212.50643.06741.10051.76872.06372.61242.97382.39054.00344.15994.51715.03105.28144.97745.9950
O82.37653.32652.64302.64301.40962.06372.06371.40822.06532.06532.38372.60452.60453.74614.08404.08404.5474
C93.66484.48653.96763.96762.35092.61242.61241.40821.10151.10151.51412.13112.13112.52232.79442.79443.4719
H104.00074.68904.55184.19422.61532.39052.97382.06531.10151.76922.15813.05182.49272.76792.58943.13443.7692
H114.00074.68904.19424.55182.61532.97382.39052.06531.10151.76922.15812.49273.05182.76793.13442.58943.7692
C124.75165.70674.86794.86793.67224.00344.00342.38371.51412.15812.15811.09311.09311.52232.17402.17402.1695
H134.81805.81774.68535.00493.93214.51714.15992.60452.13113.05182.49271.09311.75222.16043.07652.52492.5045
H144.81805.81775.00494.68533.93214.15994.51712.60452.13112.49273.05181.09311.75222.16042.52493.07652.5045
C156.11426.99416.28216.28214.87125.03105.03103.74612.52232.76792.76791.52232.16042.16041.09281.09281.0909
H166.37437.18256.71476.47855.05834.97745.28144.08402.79442.58943.13442.17403.07652.52491.09281.76321.7614
H176.37437.18256.47856.71475.05835.28144.97744.08402.79443.13442.58942.17402.52493.07651.09281.76321.7614
H186.91987.86037.00607.00605.78265.99505.99504.54743.47193.76923.76922.16952.50452.50451.09091.76141.7614

picture of Propane, 1-ethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.509 C1 C5 H7 110.509
C1 C5 O8 108.891 H2 C1 H3 108.433
H2 C1 H4 108.433 H2 C1 C5 110.423
H3 C1 H4 108.251 H3 C1 C5 110.612
H4 C1 C5 110.612 C5 O8 C9 113.087
H6 C5 H7 106.944 H6 C5 O8 109.988
H7 C5 O8 109.988 O8 C9 H10 110.153
O8 C9 H11 110.153 O8 C9 C12 109.262
C9 C12 H13 108.570 C9 C12 H14 108.570
C9 C12 C15 112.345 H10 C9 H11 106.850
H10 C9 C12 110.200 H11 C9 C12 110.200
C12 C15 H16 111.418 C12 C15 H17 111.418
C12 C15 H18 111.167 H13 C12 H14 106.538
H13 C12 C15 110.313 H14 C12 C15 110.313
H16 C15 H17 107.564 H16 C15 H18 107.537
H17 C15 H18 107.537
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.264      
2 H 0.082      
3 H 0.093      
4 H 0.093      
5 C 0.042      
6 H 0.047      
7 H 0.047      
8 O -0.285      
9 C 0.057      
10 H 0.043      
11 H 0.043      
12 C -0.152      
13 H 0.088      
14 H 0.088      
15 C -0.290      
16 H 0.086      
17 H 0.086      
18 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.817 -0.481 0.000 0.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.805 1.897 0.000
y 1.897 -38.980 0.000
z 0.000 0.000 -39.360
Traceless
 xyz
x 0.365 1.897 0.000
y 1.897 0.103 0.000
z 0.000 0.000 -0.468
Polar
3z2-r2-0.935
x2-y20.175
xy1.897
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 285.257
(<r2>)1/2 16.890