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: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A'
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-233.223544
Energy at 298.15K 
HF Energy-233.058226
Nuclear repulsion energy186.125409
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 B2PLYP/6-31G
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' 3184 3184 27.81      
2 A' 3143 3143 38.32      
3 A' 3078 3078 23.18      
4 A' 3058 3058 30.49      
5 A' 3023 3023 63.16      
6 A' 2996 2996 38.04      
7 A' 1588 1588 1.95      
8 A' 1571 1571 5.43      
9 A' 1564 1564 3.56      
10 A' 1559 1559 7.61      
11 A' 1514 1514 0.68      
12 A' 1480 1480 8.62      
13 A' 1452 1452 14.96      
14 A' 1384 1384 3.97      
15 A' 1227 1227 14.23      
16 A' 1165 1165 9.08      
17 A' 1095 1095 120.20      
18 A' 1074 1074 3.33      
19 A' 943 943 0.80      
20 A' 906 906 21.31      
21 A' 429 429 1.10      
22 A' 407 407 3.61      
23 A' 190 190 2.52      
24 A" 3139 3139 77.05      
25 A" 3114 3114 0.15      
26 A" 3082 3082 68.48      
27 A" 3033 3033 58.53      
28 A" 1565 1565 7.89      
29 A" 1546 1546 7.01      
30 A" 1353 1353 0.01      
31 A" 1301 1301 0.56      
32 A" 1218 1218 4.69      
33 A" 1172 1172 0.62      
34 A" 940 940 1.90      
35 A" 800 800 2.08      
36 A" 240 240 0.04      
37 A" 221 221 4.98      
38 A" 113 113 3.95      
39 A" 98 98 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 30482.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 30482.3 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 B2PLYP/6-31G
ABC
0.66406 0.06840 0.06505

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.428 0.461 0.000
O2 -1.251 -0.390 0.000
C3 0.000 0.356 0.000
C4 1.142 -0.654 0.000
C5 2.522 0.024 0.000
H6 -3.287 -0.210 0.000
H7 -2.460 1.099 0.894
H8 -2.460 1.099 -0.894
H9 0.050 1.005 0.890
H10 0.050 1.005 -0.890
H11 1.033 -1.298 -0.880
H12 1.033 -1.298 0.880
H13 2.654 0.657 0.886
H14 2.654 0.657 -0.886
H15 3.324 -0.721 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.45202.43033.73994.96971.08981.09891.09892.68832.68833.98113.98115.16245.16245.8719
O21.45201.45662.40753.79612.04382.11602.11602.10432.10432.61122.61124.13874.13874.5867
C32.43031.45661.52472.54423.33542.72072.72071.10221.10222.14002.14002.81412.81413.4940
C43.73992.40751.52471.53834.45104.10454.10452.17642.17641.09601.09602.18852.18852.1829
C54.96973.79612.54421.53835.81415.17495.17492.80502.80502.17752.17751.09651.09651.0946
H61.08982.04383.33544.45105.81411.78801.78803.66073.66074.54134.54136.06896.06896.6304
H71.09892.11602.72074.10455.17491.78801.78732.51153.08034.59324.23705.13325.43306.1290
H81.09892.11602.72074.10455.17491.78801.78733.08032.51154.23704.59325.43305.13326.1290
H92.68832.10431.10222.17642.80503.66072.51153.08031.77983.06662.50422.62753.17153.8067
H102.68832.10431.10222.17642.80503.66073.08032.51151.77982.50423.06663.17152.62753.8067
H113.98112.61122.14001.09602.17754.54134.59324.23703.06662.50421.76033.09312.53922.5206
H123.98112.61122.14001.09602.17754.54134.23704.59322.50423.06661.76032.53923.09312.5206
H135.16244.13872.81412.18851.09656.06895.13325.43302.62753.17153.09312.53921.77241.7698
H145.16244.13872.81412.18851.09656.06895.43305.13323.17152.62752.53923.09311.77241.7698
H155.87194.58673.49402.18291.09466.63046.12906.12903.80673.80672.52062.52061.76981.7698

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 113.343 O2 C1 H6 106.165
O2 C1 H7 111.345 O2 C1 H8 111.345
O2 C3 C4 107.685 O2 C3 H9 109.876
O2 C3 H10 109.876 C3 C4 C5 112.323
C3 C4 H11 108.376 C3 C4 H12 108.376
C4 C3 H9 110.863 C4 C3 H10 110.863
C4 C5 H13 111.218 C4 C5 H14 111.218
C4 C5 H15 110.886 C5 C4 H11 110.370
C5 C4 H12 110.370 H6 C1 H7 109.558
H6 C1 H8 109.558 H7 C1 H8 108.827
H9 C3 H10 107.683 H11 C4 H12 106.839
H13 C5 H14 107.851 H13 C5 H15 107.754
H14 C5 H15 107.754
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.145      
2 O -0.551      
3 C 0.013      
4 C -0.254      
5 C -0.422      
6 H 0.160      
7 H 0.127      
8 H 0.127      
9 H 0.118      
10 H 0.118      
11 H 0.148      
12 H 0.148      
13 H 0.135      
14 H 0.135      
15 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.123 1.532 0.000 1.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.220 -2.593 0.000
y -2.593 -34.125 0.000
z 0.000 0.000 -33.469
Traceless
 xyz
x 3.578 -2.593 0.000
y -2.593 -2.281 0.000
z 0.000 0.000 -1.297
Polar
3z2-r2-2.594
x2-y23.906
xy-2.593
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.467 -0.223 0.000
y -0.223 6.374 0.000
z 0.000 0.000 6.218


<r2> (average value of r2) Å2
<r2> 185.794
(<r2>)1/2 13.631