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

using model chemistry: B2PLYP/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 B2PLYP/Def2TZVPP
 hartrees
Energy at 0K-268.288957
Energy at 298.15K-268.296134
HF Energy-267.971169
Nuclear repulsion energy177.740345
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/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' 3142 3142 19.46      
2 A' 3084 3084 8.64      
3 A' 3076 3076 59.04      
4 A' 3067 3067 14.24      
5 A' 1776 1776 303.61      
6 A' 1531 1531 7.80      
7 A' 1512 1512 2.54      
8 A' 1437 1437 13.59      
9 A' 1408 1408 0.41      
10 A' 1404 1404 5.10      
11 A' 1212 1212 408.95      
12 A' 1142 1142 8.95      
13 A' 1039 1039 19.48      
14 A' 860 860 13.53      
15 A' 788 788 1.52      
16 A' 382 382 5.09      
17 A' 227 227 7.16      
18 A" 3152 3152 32.24      
19 A" 3124 3124 2.59      
20 A" 1500 1500 6.25      
21 A" 1308 1308 1.40      
22 A" 1190 1190 3.90      
23 A" 1046 1046 0.00      
24 A" 818 818 0.59      
25 A" 347 347 20.53      
26 A" 236 236 2.14      
27 A" 62 62 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 19933.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19933.7 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/Def2TZVPP
ABC
0.59973 0.09648 0.08576

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.177 -0.272 0.000
C2 -0.698 -0.570 0.000
O3 0.000 0.699 0.000
C4 1.337 0.627 0.000
O5 1.989 -0.383 0.000
H6 -2.738 -1.206 0.000
H7 -2.458 0.298 0.883
H8 -2.458 0.298 -0.883
H9 -0.391 -1.132 -0.880
H10 -0.391 -1.132 0.880
H11 1.752 1.639 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50932.38403.62694.16791.08891.08811.08812.16902.16904.3691
C21.50931.44792.35982.69322.13712.15252.15251.08831.08833.2982
O32.38401.44791.33852.26483.33522.64302.64302.06902.06901.9880
C43.62692.35981.33851.20274.46743.91033.91032.61762.61761.0943
O54.16792.69322.26481.20274.79804.58544.58542.64572.64572.0365
H61.08892.13713.33524.46744.79801.76581.76582.50742.50745.3149
H71.08812.15252.64303.91034.58541.76581.76653.07042.51394.5062
H81.08812.15252.64303.91034.58541.76581.76652.51393.07044.5062
H92.16901.08832.06902.61762.64572.50743.07042.51391.75933.6119
H102.16901.08832.06902.61762.64572.50742.51393.07041.75933.6119
H114.36913.29821.98801.09432.03655.31494.50624.50623.61193.6119

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 107.430 C1 C2 H9 112.220
C1 C2 H10 112.220 C2 C1 H6 109.617
C2 C1 H7 110.896 C2 C1 H8 110.896
C2 O3 C4 115.696 O3 C2 H9 108.499
O3 C2 H10 108.499 O3 C4 O5 125.973
O3 C4 H11 109.192 O5 C4 H11 124.835
H6 C1 H7 108.412 H6 C1 H8 108.412
H7 C1 H8 108.536 H9 C2 H10 107.858
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.231      
2 C 0.024      
3 O -0.255      
4 C 0.232      
5 O -0.316      
6 H 0.080      
7 H 0.088      
8 H 0.088      
9 H 0.098      
10 H 0.098      
11 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.060 0.554 0.000 2.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.516 4.862 0.000
y 4.862 -29.743 0.000
z 0.000 0.000 -29.632
Traceless
 xyz
x -3.829 4.862 0.000
y 4.862 1.831 0.000
z 0.000 0.000 1.997
Polar
3z2-r23.995
x2-y2-3.773
xy4.862
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.017 0.212 0.000
y 0.212 6.456 0.000
z 0.000 0.000 5.114


<r2> (average value of r2) Å2
<r2> 135.857
(<r2>)1/2 11.656