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 (Propane, 2-methoxy-)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-232.325419
Energy at 298.15K-232.336599
Nuclear repulsion energy196.368119
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 mPW1PW91/3-21G
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 3164 3020 26.88      
2 A 3161 3018 12.09      
3 A 3157 3014 28.50      
4 A 3152 3009 47.69      
5 A 3145 3002 0.11      
6 A 3099 2958 8.69      
7 A 3090 2949 69.17      
8 A 3079 2939 9.42      
9 A 3073 2934 1.96      
10 A 3037 2899 35.50      
11 A 1587 1515 18.94      
12 A 1574 1502 3.55      
13 A 1569 1498 3.53      
14 A 1564 1493 12.87      
15 A 1549 1479 0.01      
16 A 1547 1477 4.72      
17 A 1508 1440 0.23      
18 A 1458 1392 15.41      
19 A 1443 1378 21.34      
20 A 1396 1333 9.52      
21 A 1395 1331 6.47      
22 A 1235 1179 2.19      
23 A 1219 1164 103.63      
24 A 1194 1140 16.08      
25 A 1169 1116 0.17      
26 A 1158 1105 23.11      
27 A 1056 1008 35.03      
28 A 978 933 2.08      
29 A 949 906 0.11      
30 A 910 869 6.42      
31 A 783 748 5.65      
32 A 547 522 3.32      
33 A 397 379 10.95      
34 A 371 355 1.99      
35 A 303 289 0.99      
36 A 258 247 1.97      
37 A 248 236 0.09      
38 A 189 181 1.96      
39 A 75 72 4.44      

Unscaled Zero Point Vibrational Energy (zpe) 30393.0 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 29013.2 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 mPW1PW91/3-21G
ABC
0.21179 0.13675 0.10806

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.715 -0.000 -0.426
H2 -1.569 -0.890 -1.051
H3 -2.741 -0.001 -0.053
H4 -1.570 0.891 -1.049
O5 -0.877 -0.000 0.754
C6 1.009 -1.266 -0.255
H7 2.102 -1.325 -0.256
H8 0.608 -2.150 0.248
H9 0.670 -1.266 -1.296
C10 1.008 1.266 -0.255
H11 2.101 1.324 -0.258
H12 0.667 1.268 -1.295
H13 0.609 2.150 0.250
C14 0.556 0.000 0.478
H15 0.991 0.000 1.482

Atom - Atom Distances (Å)
  C1 H2 H3 H4 O5 C6 H7 H8 H9 C10 H11 H12 H13 C14 H15
C11.09721.09181.09721.44693.00884.04403.23602.83733.00844.04322.83523.23782.44423.3112
H21.09721.77771.78132.12732.72403.78112.83042.28383.45354.35923.11733.95992.76473.7097
H31.09181.77771.77772.03133.96325.02513.99073.84513.96325.02493.84313.99313.33974.0358
H41.09721.78131.77772.12723.45454.36133.95893.11962.72383.78042.28162.83232.76493.7096
O51.44692.12732.03132.12722.48533.41282.66102.86322.48543.41322.86202.66241.45922.0052
C63.00882.72403.96323.45452.48531.09461.09371.09492.53232.81092.76033.47651.53152.1501
H74.04403.78115.02514.36133.41281.09461.78001.77112.81232.64853.14023.81582.16422.4517
H83.23602.83043.99073.95892.66101.09371.78001.78063.47643.81533.75074.30042.16302.5088
H92.83732.28383.84513.11962.86321.09491.77111.78062.75903.13612.53403.75062.18273.0705
C103.00843.45353.96322.72382.48542.53232.81233.47642.75901.09461.09491.09371.53152.1501
H114.04324.35925.02493.78043.41322.81092.64853.81533.13611.09461.77111.78002.16412.4527
H122.83523.11733.84312.28162.86202.76033.14023.75072.53401.09491.77111.78062.18273.0706
H133.23783.95993.99312.83232.66243.47653.81584.30043.75061.09371.78001.78062.16302.5076
C142.44422.76473.33972.76491.45921.53152.16422.16302.18271.53152.16412.18272.16301.0948
H153.31123.70974.03583.70962.00522.15012.45172.50883.07052.15012.45273.07062.50761.0948

picture of Propane, 2-methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O5 C14 114.503 H2 C1 H3 108.601
H2 C1 H4 108.527 H2 C1 O5 112.751
H3 C1 H4 108.602 H3 C1 O5 105.436
H4 C1 O5 112.749 O5 C14 C6 112.381
O5 C14 C10 112.389 O5 C14 H15 102.524
C6 C14 C10 111.527 C6 C14 H15 108.767
H7 C6 H8 108.868 H7 C6 H9 107.977
H7 C6 C14 109.877 H8 C6 H9 108.897
H8 C6 C14 109.838 H9 C6 C14 111.328
C10 C14 H15 108.764 H11 C10 H12 107.977
H11 C10 H13 108.867 H11 C10 C14 109.874
H12 C10 H13 108.897 H12 C10 C14 111.330
H13 C10 C14 109.839
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.380      
2 H 0.196      
3 H 0.229      
4 H 0.196      
5 O -0.493      
6 C -0.638      
7 H 0.214      
8 H 0.230      
9 H 0.210      
10 C -0.638      
11 H 0.214      
12 H 0.210      
13 H 0.230      
14 C -0.018      
15 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.635 0.001 -1.406 1.542
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.787 -0.000 2.636
y -0.000 -32.943 0.001
z 2.636 0.001 -33.897
Traceless
 xyz
x 2.633 -0.000 2.636
y -0.000 -0.600 0.001
z 2.636 0.001 -2.033
Polar
3z2-r2-4.065
x2-y22.156
xy-0.000
xz2.636
yz0.001


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> 134.677
(<r2>)1/2 11.605