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

using model chemistry: wB97X-D/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-268.311600
Energy at 298.15K-268.318780
HF Energy-268.311600
Nuclear repulsion energy177.819679
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/cc-pVDZ
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' 3161 3011 17.07      
2 A' 3072 2927 9.80      
3 A' 3066 2920 17.70      
4 A' 3055 2910 69.91      
5 A' 1860 1772 312.72      
6 A' 1499 1428 7.68      
7 A' 1479 1409 2.14      
8 A' 1426 1359 15.82      
9 A' 1397 1331 1.93      
10 A' 1378 1313 0.49      
11 A' 1260 1200 418.72      
12 A' 1142 1088 11.54      
13 A' 1060 1010 20.81      
14 A' 881 839 10.74      
15 A' 802 764 3.78      
16 A' 387 369 6.59      
17 A' 231 220 6.84      
18 A" 3162 3012 26.57      
19 A" 3123 2975 11.67      
20 A" 1467 1397 6.85      
21 A" 1292 1231 1.35      
22 A" 1174 1119 5.14      
23 A" 1040 991 0.29      
24 A" 810 772 1.08      
25 A" 345 329 19.49      
26 A" 239 228 2.74      
27 A" 49 47 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 19928.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 18984.0 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/cc-pVDZ
ABC
0.59739 0.09697 0.08615

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.173 -0.276 0.000
C2 -0.690 -0.565 0.000
O3 0.000 0.699 0.000
C4 1.333 0.628 0.000
O5 1.981 -0.383 0.000
H6 -2.736 -1.221 0.000
H7 -2.461 0.299 0.892
H8 -2.461 0.299 -0.892
H9 -0.381 -1.138 -0.888
H10 -0.381 -1.138 0.888
H11 1.750 1.654 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51142.38173.62084.15591.09971.09971.09972.17812.17814.3719
C21.51141.43942.34812.67712.14872.16302.16301.10101.10103.2975
O32.38171.43941.33492.25743.34202.64762.64762.07542.07541.9935
C43.62082.34811.33491.20104.46903.91093.91092.61612.61611.1077
O54.15592.67712.25741.20104.79084.58174.58172.63392.63392.0506
H61.09972.14873.34204.46904.79081.78391.78392.51802.51805.3276
H71.09972.16302.64763.91094.58171.78391.78433.09182.52834.5119
H81.09972.16302.64763.91094.58171.78391.78432.52833.09184.5119
H92.17811.10102.07542.61612.63392.51803.09182.52831.77503.6228
H102.17811.10102.07542.61612.63392.51802.52833.09181.77503.6228
H114.37193.29751.99351.10772.05065.32764.51194.51193.62283.6228

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 107.615 C1 C2 H9 112.022
C1 C2 H10 112.022 C2 C1 H6 109.747
C2 C1 H7 110.882 C2 C1 H8 110.882
C2 O3 C4 115.590 O3 C2 H9 108.837
O3 C2 H10 108.837 O3 C4 O5 125.709
O3 C4 H11 109.043 O5 C4 H11 125.247
H6 C1 H7 108.406 H6 C1 H8 108.406
H7 C1 H8 108.443 H9 C2 H10 107.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C 0.062      
3 O -0.271      
4 C 0.250      
5 O -0.260      
6 H 0.049      
7 H 0.055      
8 H 0.055      
9 H 0.055      
10 H 0.055      
11 H 0.036      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.924 0.564 0.000 2.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.553 4.652 0.000
y 4.652 -28.892 0.000
z 0.000 0.000 -28.937
Traceless
 xyz
x -3.639 4.652 0.000
y 4.652 1.853 0.000
z 0.000 0.000 1.786
Polar
3z2-r23.572
x2-y2-3.661
xy4.652
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.026 0.254 0.000
y 0.254 5.738 0.000
z 0.000 0.000 4.383


<r2> (average value of r2) Å2
<r2> 134.997
(<r2>)1/2 11.619