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

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-266.942861
Energy at 298.15K-266.950282
HF Energy-266.942861
Nuclear repulsion energy179.663143
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3237 2934 42.90 58.54 0.60 0.75
2 A' 3224 2922 61.95 122.18 0.21 0.34
3 A' 3210 2909 13.72 109.40 0.15 0.26
4 A' 3172 2875 20.90 139.10 0.01 0.01
5 A' 1967 1783 432.36 6.70 0.24 0.39
6 A' 1647 1493 7.72 2.07 0.70 0.82
7 A' 1616 1465 2.73 8.05 0.74 0.85
8 A' 1562 1415 15.20 1.91 0.44 0.61
9 A' 1538 1394 4.76 3.34 0.34 0.50
10 A' 1521 1379 0.20 0.16 0.50 0.66
11 A' 1362 1234 558.59 2.01 0.14 0.24
12 A' 1228 1113 16.39 5.73 0.14 0.25
13 A' 1107 1004 20.33 4.15 0.69 0.82
14 A' 938 851 19.74 6.94 0.25 0.40
15 A' 856 776 2.51 3.83 0.37 0.54
16 A' 409 371 6.06 1.63 0.29 0.46
17 A' 243 220 9.44 0.39 0.33 0.49
18 A" 3262 2957 56.29 4.29 0.75 0.86
19 A" 3232 2929 3.80 96.61 0.75 0.86
20 A" 1602 1452 5.32 7.15 0.75 0.86
21 A" 1415 1283 2.16 4.89 0.75 0.86
22 A" 1288 1167 4.60 0.19 0.75 0.86
23 A" 1190 1078 1.89 1.31 0.75 0.86
24 A" 874 792 0.12 0.07 0.75 0.86
25 A" 349 317 26.13 1.05 0.75 0.86
26 A" 255 231 4.59 0.58 0.75 0.86
27 A" 75 68 1.02 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21188.9 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 19205.6 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 HF/Def2TZVPP
ABC
0.63059 0.09724 0.08694

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.166 -0.304 0.000
C2 -0.682 -0.586 0.000
O3 0.000 0.666 0.000
C4 1.310 0.647 0.000
O5 1.989 -0.316 0.000
H6 -2.714 -1.238 0.000
H7 -2.451 0.261 0.878
H8 -2.451 0.261 -0.878
H9 -0.383 -1.146 -0.874
H10 -0.383 -1.146 0.874
H11 1.700 1.661 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51012.37283.60404.15441.08341.08241.08242.15712.15714.3360
C21.51011.42522.34342.68452.13382.14872.14871.08061.08063.2743
O32.37281.42521.31052.21763.31512.63502.63502.04742.04741.9696
C43.60402.34341.31051.17794.44413.88203.88202.61642.61641.0859
O54.15442.68452.21761.17794.79214.56234.56232.66002.66001.9979
H61.08342.13383.31514.44414.79211.75721.75722.49152.49155.2806
H71.08242.14872.63503.88204.56231.75721.75683.05432.50164.4676
H81.08242.14872.63503.88204.56231.75721.75682.50163.05434.4676
H92.15711.08062.04742.61642.66002.49153.05432.50161.74813.6025
H102.15711.08062.04742.61642.66002.49152.50163.05431.74813.6025
H114.33603.27431.96961.08591.99795.28064.46764.46763.60253.6025

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 107.841 C1 C2 H9 111.675
C1 C2 H10 111.675 C2 C1 H6 109.628
C2 C1 H7 110.874 C2 C1 H8 110.874
C2 O3 C4 117.806 O3 C2 H9 108.804
O3 C2 H10 108.804 O3 C4 O5 125.950
O3 C4 H11 110.200 O5 C4 H11 123.850
H6 C1 H7 108.455 H6 C1 H8 108.455
H7 C1 H8 108.484 H9 C2 H10 107.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 C 0.144      
3 O -0.365      
4 C 0.448      
5 O -0.438      
6 H 0.052      
7 H 0.060      
8 H 0.060      
9 H 0.060      
10 H 0.060      
11 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.177 0.733 0.000 2.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.072 5.241 0.000
y 5.241 -28.958 0.000
z 0.000 0.000 -29.229
Traceless
 xyz
x -4.978 5.241 0.000
y 5.241 2.692 0.000
z 0.000 0.000 2.286
Polar
3z2-r24.571
x2-y2-5.114
xy5.241
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.062 0.132 0.000
y 0.132 5.940 0.000
z 0.000 0.000 4.828


<r2> (average value of r2) Å2
<r2> 134.241
(<r2>)1/2 11.586