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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-268.165445
Energy at 298.15K-268.172509
HF Energy-268.165445
Nuclear repulsion energy176.290075
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 PBEPBEultrafine/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' 3057 3022 17.30      
2 A' 2986 2952 14.08      
3 A' 2983 2949 11.63      
4 A' 2951 2917 64.58      
5 A' 1741 1721 297.64      
6 A' 1466 1449 8.48      
7 A' 1449 1432 3.06      
8 A' 1378 1362 14.96      
9 A' 1353 1338 1.27      
10 A' 1343 1327 3.24      
11 A' 1147 1134 349.22      
12 A' 1101 1089 9.79      
13 A' 1001 990 26.12      
14 A' 824 814 12.13      
15 A' 765 756 0.59      
16 A' 369 365 5.29      
17 A' 218 215 6.59      
18 A" 3066 3031 26.89      
19 A" 3026 2991 7.37      
20 A" 1438 1422 7.67      
21 A" 1254 1240 0.88      
22 A" 1136 1123 4.43      
23 A" 985 974 0.17      
24 A" 788 779 1.14      
25 A" 349 345 19.79      
26 A" 234 231 1.95      
27 A" 55 54 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 19230.6 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 19011.4 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 PBEPBEultrafine/TZVP
ABC
0.58990 0.09491 0.08437

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.191 -0.275 0.000
C2 -0.708 -0.572 0.000
O3 0.000 0.707 0.000
C4 1.348 0.629 0.000
O5 2.008 -0.387 0.000
H6 -2.756 -1.218 0.000
H7 -2.481 0.298 0.892
H8 -2.481 0.298 -0.892
H9 -0.397 -1.142 -0.888
H10 -0.397 -1.142 0.888
H11 1.761 1.657 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51302.40093.65264.20041.09981.09881.09882.18212.18214.3988
C21.51301.46132.38062.72172.14782.16742.16741.10041.10043.3259
O32.40091.46131.35012.28613.36162.66812.66812.08922.08922.0009
C43.65262.38061.35011.21114.50033.94543.94542.64002.64001.1082
O54.20042.72172.28611.21114.83564.62764.62762.67232.67232.0589
H61.09982.14783.36164.50034.83561.78061.78062.52192.52195.3543
H71.09882.16742.66813.94544.62761.78061.78333.09642.53384.5426
H81.09882.16742.66813.94544.62761.78061.78332.53383.09644.5426
H92.18211.10042.08922.64002.67232.52193.09642.53381.77633.6443
H102.18211.10042.08922.64002.67232.52192.53383.09641.77633.6443
H114.39883.32592.00091.10822.05895.35434.54264.54263.64433.6443

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 107.636 C1 C2 H9 112.263
C1 C2 H10 112.263 C2 C1 H6 109.561
C2 C1 H7 111.177 C2 C1 H8 111.177
C2 O3 C4 115.667 O3 C2 H9 108.463
O3 C2 H10 108.463 O3 C4 O5 126.311
O3 C4 H11 108.567 O5 C4 H11 125.122
H6 C1 H7 108.173 H6 C1 H8 108.173
H7 C1 H8 108.483 H9 C2 H10 107.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329      
2 C -0.147      
3 O -0.147      
4 C 0.146      
5 O -0.278      
6 H 0.124      
7 H 0.130      
8 H 0.130      
9 H 0.140      
10 H 0.140      
11 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.126 0.444 0.000 2.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.498 4.835 0.000
y 4.835 -29.954 0.000
z 0.000 0.000 -29.713
Traceless
 xyz
x -3.664 4.835 0.000
y 4.835 1.651 0.000
z 0.000 0.000 2.013
Polar
3z2-r24.026
x2-y2-3.544
xy4.835
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.261 0.236 0.000
y 0.236 6.618 0.000
z 0.000 0.000 5.126


<r2> (average value of r2) Å2
<r2> 137.845
(<r2>)1/2 11.741