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

using model chemistry: B97D3/6-31G

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 B97D3/6-31G
 hartrees
Energy at 0K-268.140175
Energy at 298.15K-268.147086
HF Energy-268.140175
Nuclear repulsion energy173.644069
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 B97D3/6-31G
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' 3089 3089 28.56      
2 A' 3049 3049 64.78      
3 A' 3026 3026 14.50      
4 A' 3005 3005 20.80      
5 A' 1658 1658 221.86      
6 A' 1526 1526 9.24      
7 A' 1515 1515 3.78      
8 A' 1436 1436 8.85      
9 A' 1382 1382 9.62      
10 A' 1365 1365 13.09      
11 A' 1126 1126 4.99      
12 A' 1109 1109 330.57      
13 A' 1011 1011 28.17      
14 A' 782 782 14.21      
15 A' 740 740 1.10      
16 A' 363 363 6.28      
17 A' 208 208 6.99      
18 A" 3109 3109 47.71      
19 A" 3077 3077 4.75      
20 A" 1505 1505 7.17      
21 A" 1278 1278 0.03      
22 A" 1161 1161 6.52      
23 A" 979 979 0.33      
24 A" 822 822 1.56      
25 A" 337 337 26.73      
26 A" 215 215 2.00      
27 A" 18 18 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 19445.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19445.0 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 B97D3/6-31G
ABC
0.57280 0.09190 0.08165

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.220 -0.257 0.000
C2 -0.739 -0.596 0.000
O3 0.000 0.712 0.000
C4 1.375 0.639 0.000
O5 2.046 -0.402 0.000
H6 -2.812 -1.185 0.000
H7 -2.488 0.326 0.891
H8 -2.488 0.326 -0.891
H9 -0.428 -1.158 -0.891
H10 -0.428 -1.158 0.891
H11 1.781 1.660 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51952.42253.70574.26831.09991.09791.09792.19432.19434.4369
C21.51951.50212.44862.79142.15462.16852.16851.09801.09803.3823
O32.42251.50211.37742.32923.39142.67082.67082.11482.11482.0177
C43.70572.44861.37741.23804.56703.97733.97732.69732.69731.0989
O54.26832.79142.32921.23804.91994.67734.67732.73602.73602.0792
H61.09992.15463.39144.56704.91991.78311.78312.54442.54445.4023
H71.09792.16852.67083.97734.67731.78311.78183.10122.53834.5605
H81.09792.16852.67083.97734.67731.78311.78182.53833.10124.5605
H92.19431.09802.11482.69732.73602.54443.10122.53831.78153.6900
H102.19431.09802.11482.69732.73602.54442.53833.10121.78153.6900
H114.43693.38232.01771.09892.07925.40234.56054.56053.69003.6900

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 106.593 C1 C2 H9 112.943
C1 C2 H10 112.943 C2 C1 H6 109.651
C2 C1 H7 110.864 C2 C1 H8 110.864
C2 O3 C4 116.437 O3 C2 H9 107.839
O3 C2 H10 107.839 O3 C4 O5 125.810
O3 C4 H11 108.616 O5 C4 H11 125.575
H6 C1 H7 108.453 H6 C1 H8 108.453
H7 C1 H8 108.484 H9 C2 H10 108.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.434      
2 C -0.060      
3 O -0.450      
4 C 0.344      
5 O -0.395      
6 H 0.152      
7 H 0.166      
8 H 0.166      
9 H 0.176      
10 H 0.176      
11 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.205 0.300 0.000 2.225
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.765 5.296 0.000
y 5.296 -29.475 0.000
z 0.000 0.000 -29.188
Traceless
 xyz
x -3.434 5.296 0.000
y 5.296 1.502 0.000
z 0.000 0.000 1.932
Polar
3z2-r23.864
x2-y2-3.290
xy5.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.381 0.280 0.000
y 0.280 5.725 0.000
z 0.000 0.000 4.068


<r2> (average value of r2) Å2
<r2> 141.092
(<r2>)1/2 11.878