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

using model chemistry: B2PLYP/TZVP

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 B2PLYP/TZVP
 hartrees
Energy at 0K-268.231525
Energy at 298.15K-268.238713
HF Energy-267.954765
Nuclear repulsion energy177.468911
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 B2PLYP/TZVP
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' 3146 3002 21.63      
2 A' 3088 2948 6.82      
3 A' 3083 2942 62.03      
4 A' 3072 2932 14.90      
5 A' 1778 1697 312.74      
6 A' 1536 1466 8.66      
7 A' 1518 1448 2.96      
8 A' 1448 1382 16.28      
9 A' 1422 1357 2.09      
10 A' 1413 1349 4.45      
11 A' 1211 1155 418.92      
12 A' 1147 1095 8.68      
13 A' 1039 992 18.95      
14 A' 862 823 16.16      
15 A' 791 755 0.94      
16 A' 383 366 5.32      
17 A' 228 218 7.21      
18 A" 3159 3015 35.01      
19 A" 3131 2988 3.60      
20 A" 1502 1434 6.52      
21 A" 1312 1252 1.26      
22 A" 1195 1141 4.37      
23 A" 1041 994 0.01      
24 A" 825 787 0.34      
25 A" 345 329 23.09      
26 A" 237 226 2.34      
27 A" 58 56 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 19985.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19073.9 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 B2PLYP/TZVP
ABC
0.59901 0.09608 0.08544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.180 -0.274 0.000
C2 -0.700 -0.572 0.000
O3 0.000 0.698 0.000
C4 1.338 0.629 0.000
O5 1.995 -0.380 0.000
H6 -2.741 -1.209 0.000
H7 -2.462 0.296 0.885
H8 -2.462 0.296 -0.885
H9 -0.396 -1.136 -0.881
H10 -0.396 -1.136 0.881
H11 1.751 1.644 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50982.38723.63274.17621.09031.08901.08902.16892.16894.3739
C21.50981.45102.36652.70172.13752.15362.15361.08951.08953.3045
O32.38721.45101.34022.26763.33922.64652.64652.07332.07331.9898
C43.63272.36651.34021.20424.47433.91593.91592.62702.62701.0950
O54.17622.70172.26761.20424.80734.59314.59312.65752.65752.0386
H61.09032.13753.33924.47434.80731.76761.76762.50612.50615.3210
H71.08902.15362.64653.91594.59311.76761.76943.07172.51334.5106
H81.08902.15362.64653.91594.59311.76761.76942.51333.07174.5106
H92.16891.08952.07332.62702.65752.50613.07172.51331.76263.6212
H102.16891.08952.07332.62702.65752.50612.51333.07171.76263.6212
H114.37393.30451.98981.09502.03865.32104.51064.51063.62123.6212

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 107.451 C1 C2 H9 112.096
C1 C2 H10 112.096 C2 C1 H6 109.529
C2 C1 H7 110.892 C2 C1 H8 110.892
C2 O3 C4 115.905 O3 C2 H9 108.560
O3 C2 H10 108.560 O3 C4 O5 125.972
O3 C4 H11 109.181 O5 C4 H11 124.847
H6 C1 H7 108.401 H6 C1 H8 108.401
H7 C1 H8 108.654 H9 C2 H10 107.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.298      
2 C -0.075      
3 O -0.207      
4 C 0.227      
5 O -0.322      
6 H 0.110      
7 H 0.117      
8 H 0.117      
9 H 0.123      
10 H 0.123      
11 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.062 0.498 0.000 2.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.739 5.080 0.000
y 5.080 -29.965 0.000
z 0.000 0.000 -29.696
Traceless
 xyz
x -3.909 5.080 0.000
y 5.080 1.752 0.000
z 0.000 0.000 2.156
Polar
3z2-r24.313
x2-y2-3.774
xy5.080
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.694 0.129 0.000
y 0.129 6.280 0.000
z 0.000 0.000 4.912


<r2> (average value of r2) Å2
<r2> 136.384
(<r2>)1/2 11.678