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

using model chemistry: B3LYP/Def2TZVPP

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 B3LYP/Def2TZVPP
 hartrees
Energy at 0K-268.500535
Energy at 298.15K-268.507677
HF Energy-268.500535
Nuclear repulsion energy177.491210
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 B3LYP/Def2TZVPP
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' 3109 2993 21.62      
2 A' 3056 2942 11.29      
3 A' 3043 2929 13.87      
4 A' 3032 2919 62.38      
5 A' 1791 1724 325.08      
6 A' 1519 1462 7.62      
7 A' 1499 1443 2.62      
8 A' 1427 1373 11.77      
9 A' 1402 1350 0.78      
10 A' 1398 1345 3.76      
11 A' 1205 1160 407.79      
12 A' 1133 1090 10.58      
13 A' 1026 988 22.20      
14 A' 853 821 14.53      
15 A' 787 758 0.94      
16 A' 380 366 5.14      
17 A' 224 215 7.26      
18 A" 3119 3002 35.31      
19 A" 3090 2975 2.37      
20 A" 1488 1432 6.36      
21 A" 1298 1250 1.34      
22 A" 1180 1136 3.95      
23 A" 1043 1004 0.00      
24 A" 814 783 0.72      
25 A" 346 333 20.54      
26 A" 231 223 2.04      
27 A" 57 55 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 19773.1 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 19033.6 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 B3LYP/Def2TZVPP
ABC
0.60460 0.09566 0.08521

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.183 -0.286 0.000
C2 -0.700 -0.578 0.000
O3 0.000 0.692 0.000
C4 1.335 0.636 0.000
O5 2.002 -0.361 0.000
H6 -2.741 -1.223 0.000
H7 -2.470 0.283 0.884
H8 -2.470 0.283 -0.884
H9 -0.393 -1.142 -0.881
H10 -0.393 -1.142 0.881
H11 1.738 1.657 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51102.39203.63744.18551.09071.08991.08992.17102.17104.3765
C21.51101.45002.37042.71082.14002.15742.15741.09011.09013.3081
O32.39201.45001.33672.26193.34362.65532.65532.07172.07171.9885
C43.63742.37041.33671.19964.48033.92293.92292.63122.63121.0977
O54.18552.71082.26191.19964.82024.60374.60372.66792.66792.0357
H61.09072.14003.34364.48034.82021.76731.76732.50912.50915.3255
H71.08992.15742.65533.92294.60371.76731.76853.07572.51904.5147
H81.08992.15742.65533.92294.60371.76731.76852.51903.07574.5147
H92.17101.09012.07172.63122.66792.50913.07572.51901.76113.6266
H102.17101.09012.07172.63122.66792.50912.51903.07571.76113.6266
H114.37653.30811.98851.09772.03575.32554.51474.51473.62663.6266

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 107.749 C1 C2 H9 112.145
C1 C2 H10 112.145 C2 C1 H6 109.620
C2 C1 H7 111.053 C2 C1 H8 111.053
C2 O3 C4 116.498 O3 C2 H9 108.465
O3 C2 H10 108.465 O3 C4 O5 126.125
O3 C4 H11 109.149 O5 C4 H11 124.725
H6 C1 H7 108.288 H6 C1 H8 108.288
H7 C1 H8 108.451 H9 C2 H10 107.760
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.227      
2 C 0.023      
3 O -0.256      
4 C 0.208      
5 O -0.304      
6 H 0.080      
7 H 0.087      
8 H 0.087      
9 H 0.101      
10 H 0.101      
11 H 0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.144 0.542 0.000 2.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.655 4.835 0.000
y 4.835 -29.619 0.000
z 0.000 0.000 -29.572
Traceless
 xyz
x -4.060 4.835 0.000
y 4.835 1.994 0.000
z 0.000 0.000 2.065
Polar
3z2-r24.131
x2-y2-4.036
xy4.835
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.096 0.258 0.000
y 0.258 6.524 0.000
z 0.000 0.000 5.168


<r2> (average value of r2) Å2
<r2> 136.591
(<r2>)1/2 11.687