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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-53.693997
Energy at 298.15K-53.703545
Nuclear repulsion energy113.902509
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 B3LYP/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 3135 3028 5.08      
2 A 3082 2976 104.84      
3 A 3017 2914 74.64      
4 A 3006 2903 26.55      
5 A 1513 1461 6.01      
6 A 1498 1447 0.15      
7 A 1482 1431 4.48      
8 A 1467 1416 0.74      
9 A 1327 1281 1.12      
10 A 1201 1160 30.12      
11 A 1166 1126 7.30      
12 A 1132 1093 83.87      
13 A 924 893 2.74      
14 A 594 573 5.60      
15 A 316 306 5.72      
16 A 154 149 0.25      
17 A 100 97 3.34      
18 B 3135 3027 82.34      
19 B 3080 2975 12.56      
20 B 3075 2969 58.31      
21 B 3007 2904 144.57      
22 B 1502 1451 5.82      
23 B 1487 1436 2.81      
24 B 1480 1429 10.70      
25 B 1428 1379 20.61      
26 B 1244 1202 10.07      
27 B 1166 1126 12.12      
28 B 1153 1114 176.20      
29 B 1067 1031 185.54      
30 B 943 911 77.98      
31 B 454 438 6.02      
32 B 215 208 17.98      
33 B 135 130 2.68      

Unscaled Zero Point Vibrational Energy (zpe) 24842.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 23990.7 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 B3LYP/CEP-31G*
ABC
0.33827 0.10576 0.09961

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.943
H2 -0.723 0.554 1.572
H3 0.723 -0.554 1.572
O4 0.788 0.891 0.173
O5 -0.788 -0.891 0.173
C6 0.000 1.842 -0.560
C7 0.000 -1.842 -0.560
H8 0.707 2.509 -1.076
H9 -0.707 -2.509 -1.076
H10 -0.650 1.346 -1.303
H11 -0.634 2.442 0.125
H12 0.650 -1.346 -1.303
H13 0.634 -2.442 0.125

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5 C6 C7 H8 H9 H10 H11 H12 H13
C11.10691.10691.41681.41682.37692.37693.29693.29692.69732.65202.69732.6520
H21.10691.82122.08612.01272.59303.28733.58854.04892.98262.38003.70913.5929
H31.10691.82122.01272.08613.28732.59304.04893.58853.70913.59292.98262.3800
O41.41682.08612.01272.37881.43542.93732.04513.91852.10962.10412.68323.3372
O51.41682.01272.08612.37882.93731.43543.91852.04512.68323.33722.10962.1041
C62.37692.59303.28731.43542.93733.68411.10074.43821.10531.10943.33714.3846
C72.37693.28732.59302.93731.43543.68414.43821.10073.33714.38461.10531.1094
H83.29693.58854.04892.04513.91851.10074.43825.21331.80191.80173.86165.0952
H93.29694.04893.58853.91852.04514.43821.10075.21333.86165.09521.80191.8017
H102.69732.98263.70912.10962.68321.10533.33711.80193.86161.80072.98884.2467
H112.65202.38003.59292.10413.33721.10944.38461.80175.09521.80074.24675.0459
H122.69733.70912.98262.68322.10963.33711.10533.86161.80192.98884.24671.8007
H132.65203.59292.38003.33722.10414.38461.10945.09521.80174.24675.04591.8007

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 112.887 C1 O5 C7 112.887
H2 C1 H3 110.710 H2 C1 O4 110.910
H2 C1 O5 105.126 H3 C1 O4 105.126
H3 C1 O5 110.910 O4 C1 O5 114.168
O4 C6 H8 106.751 O4 C6 H10 111.609
O4 C6 H11 110.899 O5 C7 H9 106.751
O5 C7 H12 111.609 O5 C7 H13 110.899
H8 C6 H10 109.536 H8 C6 H11 109.212
H9 C7 H12 109.536 H9 C7 H13 109.212
H10 C6 H11 108.790 H12 C7 H13 108.790
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.266      
2 H 0.190      
3 H 0.190      
4 O -0.195      
5 O -0.195      
6 C -0.404      
7 C -0.404      
8 H 0.218      
9 H 0.218      
10 H 0.173      
11 H 0.151      
12 H 0.173      
13 H 0.151      


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 -0.275 0.275
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.529 -2.974 0.000
y -2.974 -27.149 0.000
z 0.000 0.000 -28.945
Traceless
 xyz
x -6.482 -2.974 0.000
y -2.974 4.589 0.000
z 0.000 0.000 1.894
Polar
3z2-r23.787
x2-y2-7.381
xy-2.974
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.905 0.052 0.000
y 0.052 6.698 0.000
z 0.000 0.000 5.690


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