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

using model chemistry: wB97X-D/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 wB97X-D/6-311G*
 hartrees
Energy at 0K-268.361343
Energy at 298.15K-268.368542
HF Energy-268.361343
Nuclear repulsion energy178.162884
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/6-311G*
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' 3142 3142 27.55      
2 A' 3079 3079 11.10      
3 A' 3070 3070 79.64      
4 A' 3061 3061 19.54      
5 A' 1856 1856 330.81      
6 A' 1537 1537 9.33      
7 A' 1518 1518 3.11      
8 A' 1451 1451 20.55      
9 A' 1421 1421 1.51      
10 A' 1411 1411 0.13      
11 A' 1254 1254 429.72      
12 A' 1152 1152 13.04      
13 A' 1055 1055 20.29      
14 A' 882 882 12.95      
15 A' 807 807 2.51      
16 A' 389 389 6.62      
17 A' 232 232 7.22      
18 A" 3147 3147 47.44      
19 A" 3120 3120 4.17      
20 A" 1510 1510 8.61      
21 A" 1322 1322 1.41      
22 A" 1194 1194 5.04      
23 A" 1041 1041 0.23      
24 A" 819 819 0.70      
25 A" 345 345 22.34      
26 A" 234 234 2.74      
27 A" 59 59 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 20053.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20053.5 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/6-311G*
ABC
0.60501 0.09683 0.08616

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.173 -0.279 0.000
C2 -0.691 -0.570 0.000
O3 0.000 0.693 0.000
C4 1.330 0.629 0.000
O5 1.986 -0.371 0.000
H6 -2.736 -1.216 0.000
H7 -2.458 0.293 0.886
H8 -2.458 0.293 -0.886
H9 -0.385 -1.137 -0.882
H10 -0.385 -1.137 0.882
H11 1.741 1.649 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51022.38043.61884.16041.09271.09201.09202.17092.17094.3626
C21.51021.43962.35022.68492.14382.15652.15651.09261.09263.2920
O32.38041.43961.33132.25303.33542.64312.64312.06772.06771.9859
C43.61882.35021.33131.19634.46453.90463.90462.61532.61531.0990
O54.16042.68492.25301.19634.79674.58004.58002.64352.64352.0345
H61.09272.14383.33544.46454.79671.77111.77112.51192.51195.3142
H71.09202.15652.64313.90464.58001.77111.77153.07702.51854.5001
H81.09202.15652.64313.90464.58001.77111.77152.51853.07704.5001
H92.17091.09262.06772.61532.64352.51193.07702.51851.76433.6136
H102.17091.09262.06772.61532.64352.51192.51853.07701.76433.6136
H114.36263.29201.98591.09902.03455.31424.50014.50013.61363.6136

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 107.577 C1 C2 H9 112.039
C1 C2 H10 112.039 C2 C1 H6 109.856
C2 C1 H7 110.914 C2 C1 H8 110.914
C2 O3 C4 115.975 O3 C2 H9 108.710
O3 C2 H10 108.710 O3 C4 O5 125.999
O3 C4 H11 109.221 O5 C4 H11 124.780
H6 C1 H7 108.330 H6 C1 H8 108.330
H7 C1 H8 108.415 H9 C2 H10 107.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.661      
2 C -0.251      
3 O -0.281      
4 C 0.189      
5 O -0.338      
6 H 0.225      
7 H 0.229      
8 H 0.229      
9 H 0.230      
10 H 0.230      
11 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.986 0.552 0.000 2.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.108 4.949 0.000
y 4.949 -29.128 0.000
z 0.000 0.000 -29.147
Traceless
 xyz
x -3.971 4.949 0.000
y 4.949 2.000 0.000
z 0.000 0.000 1.971
Polar
3z2-r23.941
x2-y2-3.981
xy4.949
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.050 0.178 0.000
y 0.178 5.794 0.000
z 0.000 0.000 4.475


<r2> (average value of r2) Å2
<r2> 135.103
(<r2>)1/2 11.623