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

using model chemistry: wB97X-D/6-31+G**

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 wB97X-D/6-31+G**
 hartrees
Energy at 0K-268.313958
Energy at 298.15K-268.321134
HF Energy-268.313958
Nuclear repulsion energy177.692161
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 wB97X-D/6-31+G**
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' 3160 3009 20.87      
2 A' 3102 2954 49.66      
3 A' 3087 2940 18.97      
4 A' 3072 2925 16.84      
5 A' 1839 1752 376.26      
6 A' 1523 1450 8.87      
7 A' 1507 1435 3.40      
8 A' 1445 1376 19.06      
9 A' 1411 1344 1.07      
10 A' 1401 1334 0.28      
11 A' 1268 1207 429.19      
12 A' 1147 1092 10.30      
13 A' 1054 1004 21.93      
14 A' 878 836 12.61      
15 A' 798 760 2.68      
16 A' 388 369 6.03      
17 A' 229 218 8.37      
18 A" 3164 3013 33.90      
19 A" 3137 2987 4.04      
20 A" 1498 1427 8.48      
21 A" 1308 1246 1.49      
22 A" 1185 1128 4.94      
23 A" 1039 990 0.04      
24 A" 815 776 0.64      
25 A" 344 328 24.15      
26 A" 232 221 3.01      
27 A" 57 55 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 20043.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 19087.2 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 wB97X-D/6-31+G**
ABC
0.60106 0.09637 0.08573

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.178 -0.280 0.000
C2 -0.694 -0.571 0.000
O3 0.000 0.693 0.000
C4 1.332 0.635 0.000
O5 1.992 -0.374 0.000
H6 -2.734 -1.222 0.000
H7 -2.465 0.290 0.888
H8 -2.465 0.290 -0.888
H9 -0.387 -1.136 -0.885
H10 -0.387 -1.136 0.885
H11 1.746 1.652 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51262.38573.62724.17111.09381.09311.09312.17362.17364.3738
C21.51261.44252.35752.69302.14152.15992.15991.09381.09383.3008
O32.38571.44251.33302.25973.33822.65042.65042.06912.06911.9917
C43.62722.35751.33301.20554.46983.91393.91392.62202.62201.0982
O54.17112.69302.25971.20554.80154.59224.59222.65022.65022.0408
H61.09382.14153.33824.46984.80151.77381.77382.50982.50985.3225
H71.09312.15992.65043.91394.59221.77381.77543.08102.52024.5133
H81.09312.15992.65043.91394.59221.77381.77542.52023.08104.5133
H92.17361.09382.06912.62202.65022.50983.08102.52021.76943.6205
H102.17361.09382.06912.62202.65022.50982.52023.08101.76943.6205
H114.37383.30081.99171.09822.04085.32254.51334.51333.62053.6205

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 107.644 C1 C2 H9 112.012
C1 C2 H10 112.012 C2 C1 H6 109.445
C2 C1 H7 110.949 C2 C1 H8 110.949
C2 O3 C4 116.239 O3 C2 H9 108.551
O3 C2 H10 108.551 O3 C4 O5 125.713
O3 C4 H11 109.635 O5 C4 H11 124.651
H6 C1 H7 108.410 H6 C1 H8 108.410
H7 C1 H8 108.603 H9 C2 H10 107.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.561      
2 C -0.049      
3 O -0.289      
4 C 0.354      
5 O -0.455      
6 H 0.167      
7 H 0.175      
8 H 0.175      
9 H 0.172      
10 H 0.172      
11 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.189 0.593 0.000 2.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.535 5.313 0.000
y 5.313 -29.470 0.000
z 0.000 0.000 -29.448
Traceless
 xyz
x -4.076 5.313 0.000
y 5.313 2.022 0.000
z 0.000 0.000 2.055
Polar
3z2-r24.109
x2-y2-4.065
xy5.313
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.673 0.026 0.000
y 0.026 6.278 0.000
z 0.000 0.000 4.903


<r2> (average value of r2) Å2
<r2> 135.881
(<r2>)1/2 11.657