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: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-233.602659
Energy at 298.15K 
HF Energy-43.349699
Nuclear repulsion energy108.807842
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/CEP-31G
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' 3342 3013 72.25 97.14 0.53 0.69
2 A' 3281 2957 108.28 82.65 0.55 0.71
3 A' 3240 2921 28.27 161.43 0.11 0.19
4 A' 3198 2883 106.48 272.23 0.02 0.03
5 A' 3192 2877 115.21 93.21 0.07 0.13
6 A' 3178 2865 39.83 4.01 0.59 0.74
7 A' 1666 1502 3.47 9.35 0.69 0.82
8 A' 1646 1483 6.75 6.37 0.51 0.68
9 A' 1640 1479 8.39 13.67 0.74 0.85
10 A' 1633 1472 2.60 26.23 0.73 0.84
11 A' 1609 1451 0.08 6.14 0.73 0.84
12 A' 1563 1409 29.37 1.68 0.24 0.39
13 A' 1561 1407 2.04 2.49 0.06 0.11
14 A' 1470 1325 5.17 2.21 0.36 0.53
15 A' 1326 1195 54.60 6.59 0.38 0.55
16 A' 1256 1132 87.34 19.08 0.36 0.53
17 A' 1212 1093 75.22 6.15 0.75 0.86
18 A' 1136 1024 2.98 19.01 0.47 0.64
19 A' 1017 916 21.99 5.78 0.44 0.61
20 A' 974 878 11.07 21.36 0.26 0.42
21 A' 444 401 1.55 6.23 0.27 0.43
22 A' 422 380 4.50 1.52 0.42 0.60
23 A' 198 178 3.14 0.09 0.44 0.61
24 A" 3303 2977 184.82 10.15 0.75 0.86
25 A" 3263 2941 24.20 98.90 0.75 0.86
26 A" 3259 2938 126.55 65.44 0.75 0.86
27 A" 3224 2906 63.37 59.79 0.75 0.86
28 A" 1636 1475 7.98 19.12 0.75 0.86
29 A" 1633 1472 9.31 20.94 0.75 0.86
30 A" 1429 1288 0.03 31.22 0.75 0.86
31 A" 1375 1240 2.88 0.04 0.75 0.86
32 A" 1291 1164 8.16 2.52 0.75 0.86
33 A" 1257 1133 1.32 14.91 0.75 0.86
34 A" 979 883 1.99 0.05 0.75 0.86
35 A" 828 747 1.67 0.28 0.75 0.86
36 A" 242 218 0.42 0.03 0.75 0.86
37 A" 216 194 7.97 0.27 0.75 0.86
38 A" 115 104 4.68 0.04 0.75 0.86
39 A" 99 89 3.40 0.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 32176.9 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 29004.2 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/CEP-31G
ABC
0.67904 0.06824 0.06502

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.431 0.455 0.000
O2 -1.250 -0.355 0.000
C3 0.000 0.357 0.000
C4 1.139 -0.668 0.000
C5 2.526 0.013 0.000
H6 -3.278 -0.222 0.000
H7 -2.472 1.087 0.890
H8 -2.472 1.087 -0.890
H9 0.056 0.998 0.885
H10 0.056 0.998 -0.885
H11 1.031 -1.306 -0.876
H12 1.031 -1.306 0.876
H13 2.659 0.643 0.883
H14 2.659 0.643 -0.883
H15 3.323 -0.730 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.43242.43343.74304.97751.08351.09241.09242.69532.69533.98253.98255.17015.17015.8754
O21.43241.43862.40963.79432.03242.08952.08952.07832.07832.62232.62234.12994.12994.5885
C32.43341.43861.53262.54983.32862.72712.72711.09421.09422.14442.14442.81642.81643.4967
C43.74302.40961.53261.54554.43964.11294.11292.17572.17571.08911.08912.19252.19252.1849
C54.97753.79432.54981.54555.80915.18985.18982.80332.80332.17792.17791.09211.09211.0899
H61.08352.03243.32864.43965.80911.77581.77583.65853.65854.52934.52936.06436.06436.6207
H71.09242.08952.72714.11295.18981.77581.77952.52973.09024.59604.24345.15095.44736.1388
H81.09242.08952.72714.11295.18981.77581.77953.09022.52974.24344.59605.44735.15096.1388
H92.69532.07831.09422.17572.80333.65852.52973.09021.77013.06002.50272.62783.16703.8011
H102.69532.07831.09422.17572.80333.65853.09022.52971.77012.50273.06003.16702.62783.8011
H113.98252.62232.14441.08912.17794.52934.59604.24343.06002.50271.75143.08872.53932.5200
H123.98252.62232.14441.08912.17794.52934.24344.59602.50273.06001.75142.53933.08872.5200
H135.17014.12992.81642.19251.09216.06435.15095.44732.62783.16703.08872.53931.76531.7621
H145.17014.12992.81642.19251.09216.06435.44735.15093.16702.62782.53933.08871.76531.7621
H155.87544.58853.49672.18491.08996.62076.13886.13883.80113.80112.52002.52001.76211.7621

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 115.900 O2 C1 H6 106.951
O2 C1 H7 110.991 O2 C1 H8 110.991
O2 C3 C4 108.338 O2 C3 H9 109.527
O2 C3 H10 109.527 C3 C4 C5 111.861
C3 C4 H11 108.577 C3 C4 H12 108.577
C4 C3 H9 110.734 C4 C3 H10 110.734
C4 C5 H13 111.292 C4 C5 H14 111.292
C4 C5 H15 110.814 C5 C4 H11 110.317
C5 C4 H12 110.317 H6 C1 H7 109.396
H6 C1 H8 109.396 H7 C1 H8 109.075
H9 C3 H10 107.969 H11 C4 H12 107.045
H13 C5 H14 107.843 H13 C5 H15 107.718
H14 C5 H15 107.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 O -0.415      
3 C -0.129      
4 C 0.034      
5 C -0.356      
6 H 0.178      
7 H 0.115      
8 H 0.115      
9 H 0.081      
10 H 0.081      
11 H 0.088      
12 H 0.088      
13 H 0.090      
14 H 0.090      
15 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.113 1.904 0.000 1.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.353 -3.100 0.000
y -3.100 -34.032 0.000
z 0.000 0.000 -32.805
Traceless
 xyz
x 3.066 -3.100 0.000
y -3.100 -2.454 0.000
z 0.000 0.000 -0.612
Polar
3z2-r2-1.224
x2-y23.680
xy-3.100
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.739 -0.125 0.000
y -0.125 5.802 0.000
z 0.000 0.000 5.631


<r2> (average value of r2) Å2
<r2> 153.571
(<r2>)1/2 12.392