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All results from a given calculation for C4H10O2 (Ethane, 1,2-dimethoxy-)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-307.028402
Energy at 298.15K-307.039743
Nuclear repulsion energy246.195151
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 BLYP/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 Ag 3045 3029 0.00      
2 Ag 2918 2902 0.00      
3 Ag 2898 2882 0.00      
4 Ag 1553 1544 0.00      
5 Ag 1533 1525 0.00      
6 Ag 1469 1461 0.00      
7 Ag 1393 1385 0.00      
8 Ag 1172 1166 0.00      
9 Ag 1038 1033 0.00      
10 Ag 1019 1013 0.00      
11 Ag 904 899 0.00      
12 Ag 365 363 0.00      
13 Ag 310 308 0.00      
14 Au 2965 2949 127.35      
15 Au 2931 2915 150.59      
16 Au 1507 1499 11.62      
17 Au 1177 1171 4.90      
18 Au 1121 1115 0.19      
19 Au 863 858 0.00      
20 Au 237 236 8.45      
21 Au 92 92 11.74      
22 Au 61 60 2.09      
23 Bg 2934 2918 0.00      
24 Bg 2931 2915 0.00      
25 Bg 1507 1499 0.00      
26 Bg 1293 1285 0.00      
27 Bg 1141 1135 0.00      
28 Bg 1102 1096 0.00      
29 Bg 229 228 0.00      
30 Bg 119 118 0.00      
31 Bu 3045 3028 61.47      
32 Bu 2924 2908 95.62      
33 Bu 2898 2882 111.69      
34 Bu 1562 1554 1.47      
35 Bu 1538 1529 27.00      
36 Bu 1465 1457 11.39      
37 Bu 1333 1326 28.85      
38 Bu 1148 1142 19.85      
39 Bu 1048 1042 244.99      
40 Bu 852 847 30.71      
41 Bu 470 468 5.98      
42 Bu 125 125 5.15      

Unscaled Zero Point Vibrational Energy (zpe) 30117.5 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 29951.9 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 BLYP/3-21G
ABC
0.58962 0.04107 0.03957

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.420 1.159 0.000
O2 -1.420 -1.159 0.000
C3 -1.570 -2.623 0.000
C4 1.570 2.623 0.000
C5 0.000 0.769 0.000
C6 0.000 -0.769 0.000
H7 2.653 2.813 0.000
H8 -2.653 -2.813 0.000
H9 -1.117 -3.091 0.898
H10 -1.117 -3.091 -0.898
H11 1.117 3.091 0.898
H12 1.117 3.091 -0.898
H13 -0.533 1.138 0.898
H14 -0.533 1.138 -0.898
H15 0.533 -1.138 0.898
H16 0.533 -1.138 -0.898

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.66604.82131.47141.47242.39462.06315.68945.03045.03042.15132.15132.14952.14952.62112.6211
O23.66601.47144.82132.39461.47245.68942.06312.15132.15135.03045.03042.62112.62112.14952.1495
C34.82131.47146.11393.73772.42956.88381.09981.10931.10936.37756.37754.00334.00332.72662.7266
C41.47144.82136.11392.42953.73771.09986.88386.37756.37751.10931.10932.72662.72664.00334.0033
C51.47242.39463.73772.42951.53793.34934.45774.11714.11712.72852.72851.10761.10762.17412.1741
C62.39461.47242.42953.73771.53794.45773.34932.72852.72854.11714.11712.17412.17411.10761.1076
H72.06315.68946.88381.09983.34934.45777.73397.06237.06231.80081.80083.71013.71014.57304.5730
H85.68942.06311.09986.88384.45773.34937.73391.80081.80087.06237.06234.57304.57303.71013.7101
H95.03042.15131.10936.37754.11712.72857.06231.80081.79676.57256.81374.26864.63122.55663.1246
H105.03042.15131.10936.37754.11712.72857.06231.80081.79676.81376.57254.63124.26863.12462.5566
H112.15135.03046.37751.10932.72854.11711.80087.06236.57256.81371.79672.55663.12464.26864.6312
H122.15135.03046.37751.10932.72854.11711.80087.06236.81376.57251.79673.12462.55664.63124.2686
H132.14952.62114.00332.72661.10762.17413.71014.57304.26864.63122.55663.12461.79602.51323.0889
H142.14952.62114.00332.72661.10762.17413.71014.57304.63124.26863.12462.55661.79603.08892.5132
H152.62112.14952.72664.00332.17411.10764.57303.71012.55663.12464.26864.63122.51323.08891.7960
H162.62112.14952.72664.00332.17411.10764.57303.71013.12462.55664.63124.26863.08892.51321.7960

picture of Ethane, 1,2-dimethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C4 H7 105.811 O1 C4 H11 112.184
O1 C4 H12 112.184 O1 C5 C6 105.378
O1 C5 H13 112.070 O1 C5 H14 112.070
O2 C3 H8 105.811 O2 C3 H9 112.184
O2 C3 H10 112.184 O2 C6 C5 105.378
O2 C6 H15 112.070 O2 C6 H16 112.070
C3 O2 C6 111.234 C4 O1 C5 111.234
C5 C6 H15 109.460 C5 C6 H16 109.460
C6 C5 H13 109.460 C6 C5 H14 109.460
H7 C4 H11 109.214 H7 C4 H12 109.214
H8 C3 H9 109.214 H8 C3 H10 109.214
H9 C3 H10 108.164 H11 C4 H12 108.164
H13 C5 H14 108.344 H15 C6 H16 108.344
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.438      
2 O -0.438      
3 C -0.301      
4 C -0.301      
5 C -0.128      
6 C -0.128      
7 H 0.192      
8 H 0.192      
9 H 0.165      
10 H 0.165      
11 H 0.165      
12 H 0.165      
13 H 0.173      
14 H 0.173      
15 H 0.173      
16 H 0.173      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.521 2.662 0.000
y 2.662 -29.259 0.000
z 0.000 0.000 -38.383
Traceless
 xyz
x -6.701 2.662 0.000
y 2.662 10.193 0.000
z 0.000 0.000 -3.493
Polar
3z2-r2-6.985
x2-y2-11.262
xy2.662
xz0.000
yz0.000


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> 281.386
(<r2>)1/2 16.775