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All results from a given calculation for HCOOC2H5 (Ethyl formate)

using model chemistry: wB97X-D/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at wB97X-D/CEP-31G
 hartrees
Energy at 0K-52.433467
Energy at 298.15K-52.440547
HF Energy-52.433467
Nuclear repulsion energy97.634679
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 wB97X-D/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' 3189 3189 44.57      
2 A' 3157 3157 64.57      
3 A' 3108 3108 27.16      
4 A' 3088 3088 25.46      
5 A' 1672 1672 298.35      
6 A' 1536 1536 17.74      
7 A' 1522 1522 5.87      
8 A' 1460 1460 28.29      
9 A' 1419 1419 3.55      
10 A' 1387 1387 10.51      
11 A' 1204 1204 432.43      
12 A' 1151 1151 5.76      
13 A' 1052 1052 21.48      
14 A' 836 836 15.97      
15 A' 757 757 2.23      
16 A' 369 369 8.27      
17 A' 213 213 9.78      
18 A" 3201 3201 73.21      
19 A" 3169 3169 11.75      
20 A" 1512 1512 10.27      
21 A" 1308 1308 0.54      
22 A" 1187 1187 8.73      
23 A" 1009 1009 1.07      
24 A" 828 828 2.59      
25 A" 330 330 39.14      
26 A" 228 228 4.09      
27 A" 64 64 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 19976.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19976.7 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 wB97X-D/CEP-31G
ABC
0.57713 0.09201 0.08183

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.224 -0.262 0.000
C2 -0.728 -0.597 0.000
O3 0.000 0.699 0.000
C4 1.368 0.650 0.000
O5 2.044 -0.392 0.000
H6 -2.812 -1.193 0.000
H7 -2.489 0.323 0.893
H8 -2.489 0.323 -0.893
H9 -0.421 -1.162 -0.892
H10 -0.421 -1.162 0.892
H11 1.781 1.668 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.53312.42253.70594.27001.10181.10001.10002.20332.20334.4451
C21.53311.48702.43942.77972.16782.17882.17881.09921.09923.3800
O32.42251.48701.36902.31733.38972.67142.67142.10662.10662.0271
C43.70592.43941.36901.24274.56893.97323.97322.69892.69891.0977
O54.27002.77972.31731.24274.92214.67574.67572.73272.73272.0766
H61.10182.16783.38974.56894.92211.78881.78882.55192.55195.4112
H71.10002.17882.67143.97324.67571.78881.78663.10932.54584.5653
H81.10002.17882.67143.97324.67571.78881.78662.54583.10934.5653
H92.20331.09922.10662.69892.73272.55193.10932.54581.78363.6951
H102.20331.09922.10662.69892.73272.55192.54583.10931.78363.6951
H114.44513.38002.02711.09772.07665.41124.56534.56533.69513.6951

picture of Ethyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.658 C1 C2 H9 112.617
C1 C2 H10 112.617 C2 C1 H6 109.635
C2 C1 H7 110.607 C2 C1 H8 110.607
C2 O3 C4 117.269 O3 C2 H9 108.155
O3 C2 H10 108.155 O3 C4 O5 124.998
O3 C4 H11 110.042 O5 C4 H11 124.960
H6 C1 H7 108.670 H6 C1 H8 108.670
H7 C1 H8 108.602 H9 C2 H10 108.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.275      
2 C -0.243      
3 O -0.179      
4 C -0.135      
5 O -0.161      
6 H 0.137      
7 H 0.144      
8 H 0.144      
9 H 0.177      
10 H 0.177      
11 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.305 0.519 0.000 2.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.574 6.482 0.000
y 6.482 -29.170 0.000
z 0.000 0.000 -29.036
Traceless
 xyz
x -4.471 6.482 0.000
y 6.482 2.135 0.000
z 0.000 0.000 2.336
Polar
3z2-r24.672
x2-y2-4.404
xy6.482
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.002 0.084 0.000
y 0.084 5.368 0.000
z 0.000 0.000 3.982


<r2> (average value of r2) Å2
<r2> 114.948
(<r2>)1/2 10.721