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 C4H10O (Methyl propyl ether)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-232.987054
Energy at 298.15K 
HF Energy-233.359205
Nuclear repulsion energy187.878522
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 PBEPBE/6-31G(2df,p)
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' 3058 3027 26.06      
2 A' 3049 3018 28.68      
3 A' 2978 2948 33.94      
4 A' 2973 2942 15.22      
5 A' 2891 2861 76.48      
6 A' 2855 2826 43.38      
7 A' 1481 1466 1.68      
8 A' 1459 1444 7.26      
9 A' 1452 1437 4.59      
10 A' 1440 1425 2.00      
11 A' 1428 1413 0.68      
12 A' 1373 1358 19.47      
13 A' 1359 1345 1.35      
14 A' 1282 1269 4.03      
15 A' 1190 1178 29.51      
16 A' 1138 1127 145.95      
17 A' 1096 1085 6.88      
18 A' 1041 1030 2.23      
19 A' 968 958 19.83      
20 A' 884 875 6.27      
21 A' 429 425 0.53      
22 A' 396 392 2.39      
23 A' 186 184 1.12      
24 A" 3048 3017 45.56      
25 A" 3017 2986 6.51      
26 A" 2932 2902 59.03      
27 A" 2881 2851 67.69      
28 A" 1452 1437 5.97      
29 A" 1432 1417 5.41      
30 A" 1266 1253 0.11      
31 A" 1222 1210 2.02      
32 A" 1163 1151 4.18      
33 A" 1133 1121 0.06      
34 A" 869 860 1.57      
35 A" 741 733 2.13      
36 A" 241 239 2.46      
37 A" 237 235 0.04      
38 A" 113 111 2.42      
39 A" 103 102 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 29127.5 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 28827.5 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 PBEPBE/6-31G(2df,p)
ABC
0.65831 0.07036 0.06679

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.317 0.675 0.000
O2 -1.279 -0.281 0.000
C3 0.000 0.329 0.000
C4 1.068 -0.759 0.000
C5 2.487 -0.182 0.000
H6 -3.271 0.126 0.000
H7 -2.281 1.330 0.898
H8 -2.281 1.330 -0.898
H9 0.118 0.987 0.893
H10 0.118 0.987 -0.893
H11 0.912 -1.401 -0.884
H12 0.912 -1.401 0.884
H13 2.666 0.445 0.890
H14 2.666 0.445 -0.890
H15 3.242 -0.983 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.41082.34223.67554.87911.10111.11151.11152.61162.61163.93923.93925.06655.06655.8008
O21.41081.41662.39463.76652.03402.09812.09812.08632.08632.61492.61494.10824.10824.5751
C32.34221.41661.52462.53873.27772.64712.64711.11491.11492.14682.14682.81282.81283.4978
C43.67552.39461.52461.53164.42864.04714.04712.17862.17861.10401.10402.18982.18982.1860
C54.87913.76652.53871.53165.76635.08115.08112.78832.78832.17852.17851.10321.10321.1012
H61.10112.03403.27774.42865.76631.79851.79853.60883.60884.54084.54086.01216.01216.6075
H71.11152.09812.64714.04715.08111.79851.79502.42283.01254.56364.20135.02505.33336.0544
H81.11152.09812.64714.04715.08111.79851.79503.01252.42284.20134.56365.33335.02506.0544
H92.61162.08631.11492.17862.78833.60882.42283.01251.78573.08062.51632.60513.15653.7999
H102.61162.08631.11492.17862.78833.60883.01252.42281.78572.51633.08063.15652.60513.7999
H113.93922.61492.14681.10402.17854.54084.56364.20133.08062.51631.76893.10332.54632.5268
H123.93922.61492.14681.10402.17854.54084.20134.56362.51633.08061.76892.54633.10332.5268
H135.06654.10822.81282.18981.10326.01215.02505.33332.60513.15653.10332.54631.77901.7787
H145.06654.10822.81282.18981.10326.01215.33335.02503.15652.60512.54633.10331.77901.7787
H155.80084.57513.49782.18601.10126.60756.05446.05443.79993.79992.52682.52681.77871.7787

picture of Methyl propyl ether state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.867 O2 C1 H6 107.501
O2 C1 H7 112.031 O2 C1 H8 112.031
O2 C3 C4 108.953 O2 C3 H9 110.435
O2 C3 H10 110.435 C3 C4 C5 112.339
C3 C4 H11 108.454 C3 C4 H12 108.454
C4 C3 H9 110.290 C4 C3 H10 110.290
C4 C5 H13 111.390 C4 C5 H14 111.390
C4 C5 H15 111.209 C5 C4 H11 110.452
C5 C4 H12 110.452 H6 C1 H7 108.748
H6 C1 H8 108.748 H7 C1 H8 107.699
H9 C3 H10 106.424 H11 C4 H12 106.484
H13 C5 H14 107.472 H13 C5 H15 107.590
H14 C5 H15 107.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.271      
2 O -0.194      
3 C -0.064      
4 C -0.210      
5 C -0.415      
6 H 0.134      
7 H 0.110      
8 H 0.110      
9 H 0.089      
10 H 0.089      
11 H 0.119      
12 H 0.119      
13 H 0.127      
14 H 0.127      
15 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.257 0.861 0.000 0.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.154 -1.853 0.000
y -1.853 -33.116 0.000
z 0.000 0.000 -32.775
Traceless
 xyz
x 1.792 -1.853 0.000
y -1.853 -1.151 0.000
z 0.000 0.000 -0.641
Polar
3z2-r2-1.281
x2-y21.962
xy-1.853
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.335 -0.510 0.000
y -0.510 7.031 0.000
z 0.000 0.000 6.769


<r2> (average value of r2) Å2
<r2> 181.753
(<r2>)1/2 13.482