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 CH3OC2H5 (Ethane, methoxy-)

using model chemistry: B3LYPultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-194.349467
Energy at 298.15K-194.358410
HF Energy-194.349467
Nuclear repulsion energy133.153864
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 B3LYPultrafine/cc-pVDZ
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' 3117 3023 26.00      
2 A' 3112 3019 30.83      
3 A' 3038 2947 18.18      
4 A' 2957 2868 90.43      
5 A' 2937 2849 39.01      
6 A' 1507 1462 1.03      
7 A' 1478 1433 4.80      
8 A' 1473 1429 4.85      
9 A' 1457 1413 0.14      
10 A' 1413 1370 41.26      
11 A' 1378 1337 5.23      
12 A' 1226 1189 52.39      
13 A' 1166 1131 144.16      
14 A' 1108 1074 4.22      
15 A' 1037 1006 17.11      
16 A' 869 843 12.03      
17 A' 465 451 0.58      
18 A' 285 277 2.40      
19 A" 3118 3025 27.96      
20 A" 2999 2909 69.85      
21 A" 2964 2875 84.72      
22 A" 1453 1410 8.34      
23 A" 1452 1408 2.08      
24 A" 1282 1244 1.66      
25 A" 1185 1150 10.75      
26 A" 1151 1116 0.02      
27 A" 821 796 0.32      
28 A" 266 258 2.17      
29 A" 213 207 0.94      
30 A" 114 110 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 23520.5 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 22814.9 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 B3LYPultrafine/cc-pVDZ
ABC
0.93494 0.13801 0.12915

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.317 1.243 0.000
O2 0.014 0.710 0.000
C3 0.000 -0.706 0.000
C4 -1.444 -1.175 0.000
H5 1.227 2.340 0.000
H6 1.893 0.934 0.897
H7 1.893 0.934 -0.897
H8 0.538 -1.094 -0.892
H9 0.538 -1.094 0.892
H10 -1.494 -2.275 0.000
H11 -1.971 -0.800 0.892
H12 -1.971 -0.800 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40822.35223.67031.10001.11011.11012.62082.62084.50373.97293.9729
O21.40821.41552.38272.03162.09422.09422.07982.07983.34442.64882.6488
C32.35221.41551.51843.28302.65982.65981.11171.11172.16712.16562.1656
C43.67032.38271.51844.41414.04784.04782.17462.17461.10161.10141.1014
H51.10002.03163.28304.41411.79601.79603.61443.61445.35734.56964.5696
H61.11012.09422.65984.04781.79601.79383.02482.43924.75114.23534.5975
H71.11012.09422.65984.04781.79601.79382.43923.02484.75114.59754.2353
H82.62082.07981.11172.17463.61443.02482.43921.78392.51343.09222.5260
H92.62082.07981.11172.17463.61442.43923.02481.78392.51342.52603.0922
H104.50373.34442.16711.10165.35734.75114.75112.51342.51341.78841.7884
H113.97292.64882.16561.10144.56964.23534.59753.09222.52601.78841.7833
H123.97292.64882.16561.10144.56964.59754.23532.52603.09221.78841.7833

picture of Ethane, methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.825 O2 C1 H5 107.558
O2 C1 H6 111.987 O2 C1 H7 111.987
O2 C3 C4 108.561 O2 C3 H8 110.189
O2 C3 H9 110.189 C3 C4 H10 110.601
C3 C4 H11 110.494 C3 C4 H12 110.494
C4 C3 H8 110.598 C4 C3 H9 110.598
H5 C1 H6 108.713 H5 C1 H7 108.713
H6 C1 H7 107.799 H8 C3 H9 106.706
H10 C4 H11 108.539 H10 C4 H12 108.539
H11 C4 H12 108.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.130      
2 O -0.317      
3 C 0.110      
4 C -0.021      
5 H 0.025      
6 H 0.003      
7 H 0.003      
8 H -0.003      
9 H -0.003      
10 H 0.016      
11 H 0.029      
12 H 0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.850 -0.611 0.000 1.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.675 1.622 0.000
y 1.622 -25.604 0.000
z 0.000 0.000 -26.667
Traceless
 xyz
x 0.460 1.622 0.000
y 1.622 0.567 0.000
z 0.000 0.000 -1.027
Polar
3z2-r2-2.055
x2-y2-0.072
xy1.622
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.254 0.833 0.000
y 0.833 6.272 0.000
z 0.000 0.000 5.331


<r2> (average value of r2) Å2
<r2> 103.837
(<r2>)1/2 10.190