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

using model chemistry: HSEh1PBE/6-311G*

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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-268.165114
Energy at 298.15K-268.172307
HF Energy-268.165114
Nuclear repulsion energy178.295772
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 HSEh1PBE/6-311G*
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' 3144 3017 25.70      
2 A' 3081 2956 13.31      
3 A' 3065 2941 15.62      
4 A' 3062 2938 81.53      
5 A' 1848 1773 321.65      
6 A' 1533 1471 9.43      
7 A' 1512 1451 2.98      
8 A' 1440 1382 19.66      
9 A' 1413 1356 1.37      
10 A' 1401 1344 0.14      
11 A' 1242 1192 407.95      
12 A' 1148 1102 12.70      
13 A' 1056 1013 22.16      
14 A' 876 841 11.38      
15 A' 805 772 2.42      
16 A' 385 369 6.58      
17 A' 228 219 7.02      
18 A" 3151 3024 42.92      
19 A" 3120 2994 5.60      
20 A" 1500 1440 8.92      
21 A" 1315 1262 1.29      
22 A" 1189 1141 4.83      
23 A" 1043 1001 0.12      
24 A" 812 780 0.94      
25 A" 356 341 21.77      
26 A" 236 227 2.13      
27 A" 59 56 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 20009.0 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 19200.6 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 HSEh1PBE/6-311G*
ABC
0.60314 0.09722 0.08642

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.169 -0.275 0.000
C2 -0.691 -0.566 0.000
O3 0.000 0.696 0.000
C4 1.330 0.625 0.000
O5 1.981 -0.379 0.000
H6 -2.735 -1.210 0.000
H7 -2.455 0.298 0.885
H8 -2.455 0.298 -0.885
H9 -0.381 -1.134 -0.881
H10 -0.381 -1.134 0.881
H11 1.744 1.644 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50592.37643.61244.15111.09291.09221.09222.17022.17024.3583
C21.50591.43952.34602.67892.14272.15392.15391.09311.09313.2891
O32.37641.43951.33152.25393.33382.63982.63982.06692.06691.9851
C43.61242.34601.33151.19664.45973.90043.90042.60732.60731.1002
O54.15112.67892.25391.19664.78884.57364.57362.63192.63192.0367
H61.09292.14273.33384.45974.78881.77021.77022.51462.51465.3112
H71.09222.15392.63983.90044.57361.77021.77003.07712.51994.4976
H81.09222.15392.63983.90044.57361.77021.77002.51993.07714.4976
H92.17021.09312.06692.60732.63192.51463.07712.51991.76203.6073
H102.17021.09312.06692.60732.63192.51462.51993.07711.76203.6073
H114.35833.28911.98511.10022.03675.31124.49764.49763.60733.6073

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 107.553 C1 C2 H9 112.264
C1 C2 H10 112.264 C2 C1 H6 110.061
C2 C1 H7 110.999 C2 C1 H8 110.999
C2 O3 C4 115.638 O3 C2 H9 108.624
O3 C2 H10 108.624 O3 C4 O5 126.045
O3 C4 H11 109.070 O5 C4 H11 124.884
H6 C1 H7 108.218 H6 C1 H8 108.218
H7 C1 H8 108.249 H9 C2 H10 107.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.680      
2 C -0.266      
3 O -0.276      
4 C 0.184      
5 O -0.334      
6 H 0.231      
7 H 0.235      
8 H 0.235      
9 H 0.236      
10 H 0.236      
11 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.967 0.532 0.000 2.038
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.050 4.831 0.000
y 4.831 -29.265 0.000
z 0.000 0.000 -29.238
Traceless
 xyz
x -3.798 4.831 0.000
y 4.831 1.879 0.000
z 0.000 0.000 1.919
Polar
3z2-r23.839
x2-y2-3.785
xy4.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.139 0.202 0.000
y 0.202 5.834 0.000
z 0.000 0.000 4.469


<r2> (average value of r2) Å2
<r2> 134.804
(<r2>)1/2 11.611