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

using model chemistry: B97D3/cc-pVTZ

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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-268.327281
Energy at 298.15K-268.334313
HF Energy-268.327281
Nuclear repulsion energy176.619580
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 B97D3/cc-pVTZ
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' 3063 3020 25.77      
2 A' 3003 2961 15.17      
3 A' 2992 2950 17.71      
4 A' 2957 2916 80.84      
5 A' 1749 1724 286.21      
6 A' 1487 1466 6.09      
7 A' 1469 1449 2.23      
8 A' 1391 1372 10.32      
9 A' 1366 1347 0.51      
10 A' 1360 1341 6.44      
11 A' 1147 1131 358.51      
12 A' 1106 1091 14.67      
13 A' 998 984 27.26      
14 A' 822 811 14.56      
15 A' 765 755 0.38      
16 A' 371 366 4.89      
17 A' 219 216 6.32      
18 A" 3072 3029 41.29      
19 A" 3040 2997 5.17      
20 A" 1459 1438 5.69      
21 A" 1267 1249 1.01      
22 A" 1151 1135 3.74      
23 A" 1001 987 0.02      
24 A" 796 785 0.88      
25 A" 341 337 17.85      
26 A" 222 219 1.56      
27 A" 40 40 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 19326.4 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 19055.8 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 B97D3/cc-pVTZ
ABC
0.59419 0.09502 0.08452

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.191 -0.278 0.000
C2 -0.706 -0.574 0.000
O3 0.000 0.704 0.000
C4 1.345 0.629 0.000
O5 2.007 -0.380 0.000
H6 -2.751 -1.219 0.000
H7 -2.478 0.293 0.888
H8 -2.478 0.293 -0.888
H9 -0.396 -1.139 -0.884
H10 -0.396 -1.139 0.884
H11 1.752 1.655 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51382.40113.65074.19931.09481.09381.09382.17852.17854.3912
C21.51381.46082.37842.72052.14372.16282.16281.09441.09443.3184
O32.40111.46081.34752.28123.35652.66392.66392.08242.08241.9932
C43.65072.37841.34751.20614.49363.93913.93912.63402.63401.1037
O54.19932.72052.28121.20614.83154.62114.62112.67072.67072.0503
H61.09482.14373.35654.49364.83151.77431.77432.51702.51705.3417
H71.09382.16282.66393.93914.62111.77431.77563.08632.52674.5314
H81.09382.16282.66393.93914.62111.77431.77562.52673.08634.5314
H92.17851.09442.08242.63402.67072.51703.08632.52671.76903.6331
H102.17851.09442.08242.63402.67072.51702.52673.08631.76903.6331
H114.39123.31841.99321.10372.05035.34174.53144.53143.63313.6331

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 107.634 C1 C2 H9 112.291
C1 C2 H10 112.291 C2 C1 H6 109.479
C2 C1 H7 111.052 C2 C1 H8 111.052
C2 O3 C4 115.693 O3 C2 H9 108.321
O3 C2 H10 108.321 O3 C4 O5 126.501
O3 C4 H11 108.397 O5 C4 H11 125.102
H6 C1 H7 108.329 H6 C1 H8 108.329
H7 C1 H8 108.517 H9 C2 H10 107.849
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 C 0.049      
3 O -0.195      
4 C 0.211      
5 O -0.292      
6 H 0.085      
7 H 0.089      
8 H 0.089      
9 H 0.081      
10 H 0.081      
11 H 0.049      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.087 0.474 0.000 2.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.098 4.541 0.000
y 4.541 -29.416 0.000
z 0.000 0.000 -29.337
Traceless
 xyz
x -3.722 4.541 0.000
y 4.541 1.802 0.000
z 0.000 0.000 1.920
Polar
3z2-r23.841
x2-y2-3.682
xy4.541
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.283 0.345 0.000
y 0.345 6.570 0.000
z 0.000 0.000 5.098


<r2> (average value of r2) Å2
<r2> 137.301
(<r2>)1/2 11.718