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All results from a given calculation for C3H8O2 (Methane, dimethoxy-)

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-269.242938
Energy at 298.15K-269.252494
Nuclear repulsion energy197.529369
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 3067 3036 5.29      
2 A 2996 2966 60.57      
3 A 2921 2891 4.02      
4 A 2907 2877 73.94      
5 A 1466 1451 5.17      
6 A 1441 1426 0.98      
7 A 1430 1415 3.52      
8 A 1409 1394 0.14      
9 A 1289 1275 0.43      
10 A 1166 1154 18.85      
11 A 1140 1128 13.29      
12 A 1110 1098 65.48      
13 A 919 910 3.87      
14 A 586 580 4.15      
15 A 310 307 3.41      
16 A 159 158 0.01      
17 A 107 106 1.90      
18 B 3067 3035 36.38      
19 B 2995 2964 7.53      
20 B 2964 2933 43.50      
21 B 2919 2889 105.58      
22 B 1459 1444 6.25      
23 B 1432 1417 2.02      
24 B 1428 1414 8.91      
25 B 1376 1362 12.05      
26 B 1213 1201 14.79      
27 B 1139 1128 1.47      
28 B 1111 1099 129.34      
29 B 1036 1025 185.89      
30 B 929 920 65.76      
31 B 443 438 4.11      
32 B 213 210 14.87      
33 B 152 150 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 24149.1 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 23900.3 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 PBEPBE/6-31G(2df,p)
ABC
0.34078 0.10785 0.10174

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.928
H2 -0.724 0.555 1.559
H3 0.724 -0.555 1.559
O4 0.789 0.880 0.162
O5 -0.789 -0.880 0.162
C6 0.000 1.820 -0.562
C7 0.000 -1.820 -0.562
H8 0.697 2.449 -1.135
H9 -0.697 -2.449 -1.135
H10 -0.699 1.318 -1.255
H11 -0.588 2.463 0.124
H12 0.699 -1.318 -1.255
H13 0.588 -2.463 0.124

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5 C6 C7 H8 H9 H10 H11 H12 H13
C11.10921.10921.40841.40842.35162.35163.27693.27692.64452.65702.64452.6570
H21.10921.82402.08462.00432.57333.26533.58644.03542.91652.39153.66833.5905
H31.10921.82402.00432.08463.26532.57334.03543.58643.66833.59052.91652.3915
O41.40842.08462.00432.36371.42412.90422.03753.86942.10092.09842.61733.3497
O51.40842.00432.08462.36372.90421.42413.86942.03752.61733.34972.10092.0984
C62.35162.57333.26531.42412.90423.63911.10004.36291.10491.10953.28884.3771
C72.35163.26532.57332.90421.42413.63914.36291.10003.28884.37711.10491.1095
H83.27693.58644.03542.03753.86941.10004.36295.09251.80021.79893.76945.0723
H93.27694.03543.58643.86942.03754.36291.10005.09253.76945.07231.80021.7989
H102.64452.91653.66832.10092.61731.10493.28881.80023.76941.79612.98444.2262
H112.65702.39153.59052.09843.34971.10954.37711.79895.07231.79614.22625.0650
H122.64453.66832.91652.61732.10093.28881.10493.76941.80022.98444.22621.7961
H132.65703.59052.39153.34972.09844.37711.10955.07231.79894.22625.06501.7961

picture of Methane, dimethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C6 112.241 C1 O5 C7 112.241
H2 C1 H3 110.607 H2 C1 O4 111.229
H2 C1 O5 104.899 H3 C1 O4 104.899
H3 C1 O5 111.229 O4 C1 O5 114.100
O4 C6 H8 106.946 O4 C6 H10 111.724
O4 C6 H11 111.231 O5 C7 H9 106.946
O5 C7 H12 111.724 O5 C7 H13 111.231
H8 C6 H10 109.469 H8 C6 H11 109.014
H9 C7 H12 109.469 H9 C7 H13 109.014
H10 C6 H11 108.412 H12 C7 H13 108.412
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 -0.023      
2 H 0.101      
3 H 0.101      
4 O -0.189      
5 O -0.189      
6 C -0.285      
7 C -0.285      
8 H 0.136      
9 H 0.136      
10 H 0.132      
11 H 0.116      
12 H 0.132      
13 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.260 0.260
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.878 -2.022 0.000
y -2.022 -28.224 0.000
z 0.000 0.000 -29.564
Traceless
 xyz
x -4.984 -2.022 0.000
y -2.022 3.497 0.000
z 0.000 0.000 1.487
Polar
3z2-r22.974
x2-y2-5.654
xy-2.022
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.581 -0.068 0.000
y -0.068 7.706 0.000
z 0.000 0.000 6.393


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000