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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-268.079420
Energy at 298.15K-268.086435
HF Energy-268.079420
Nuclear repulsion energy176.142117
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3072 3054 15.03      
2 A' 2985 2968 13.16      
3 A' 2981 2964 15.69      
4 A' 2934 2917 79.31      
5 A' 1764 1754 257.84      
6 A' 1439 1431 6.36      
7 A' 1421 1413 1.97      
8 A' 1357 1349 13.17      
9 A' 1329 1321 0.43      
10 A' 1316 1309 3.32      
11 A' 1159 1152 336.09      
12 A' 1095 1089 10.00      
13 A' 1010 1004 24.96      
14 A' 829 824 9.22      
15 A' 765 760 1.86      
16 A' 367 365 5.86      
17 A' 219 217 5.62      
18 A" 3075 3057 22.91      
19 A" 3025 3008 13.14      
20 A" 1406 1398 6.45      
21 A" 1232 1225 0.91      
22 A" 1123 1116 4.42      
23 A" 978 972 0.00      
24 A" 777 773 1.65      
25 A" 350 348 15.63      
26 A" 229 228 1.35      
27 A" 40 40 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 19138.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 19027.2 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 PBEPBE/cc-pVDZ
ABC
0.58097 0.09554 0.08472

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.188 -0.264 0.000
C2 -0.702 -0.562 0.000
O3 0.000 0.715 0.000
C4 1.350 0.620 0.000
O5 1.995 -0.410 0.000
H6 -2.762 -1.212 0.000
H7 -2.478 0.317 0.898
H8 -2.478 0.317 -0.898
H9 -0.386 -1.141 -0.893
H10 -0.386 -1.141 0.893
H11 1.771 1.657 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51562.39723.64734.18541.10821.10801.10802.19422.19424.4008
C21.51561.45752.36872.70122.16032.17552.17551.11021.11023.3232
O32.39721.45751.35362.28983.36812.66562.66562.09532.09532.0062
C43.64732.36871.35361.21494.50243.94393.94392.62932.62931.1192
O54.18542.70122.28981.21494.82444.61954.61952.64572.64572.0791
H61.10822.16033.36814.50244.82441.79561.79562.53992.53995.3652
H71.10802.17552.66563.94394.61951.79561.79563.11602.54994.5450
H81.10802.17552.66563.94394.61951.79561.79562.54993.11604.5450
H92.19421.11022.09532.62932.64572.53993.11602.54991.78623.6442
H102.19421.11022.09532.62932.64572.53992.54993.11601.78623.6442
H114.40083.32322.00621.11922.07915.36524.54504.54503.64423.6442

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 107.457 C1 C2 H9 112.448
C1 C2 H10 112.448 C2 C1 H6 109.870
C2 C1 H7 111.079 C2 C1 H8 111.079
C2 O3 C4 114.792 O3 C2 H9 108.629
O3 C2 H10 108.629 O3 C4 O5 126.047
O3 C4 H11 108.072 O5 C4 H11 125.881
H6 C1 H7 108.235 H6 C1 H8 108.235
H7 C1 H8 108.247 H9 C2 H10 107.124
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.067      
2 C 0.057      
3 O -0.215      
4 C 0.198      
5 O -0.216      
6 H 0.041      
7 H 0.048      
8 H 0.048      
9 H 0.046      
10 H 0.046      
11 H 0.013      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.897 0.449 0.000 1.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.439 4.208 0.000
y 4.208 -29.320 0.000
z 0.000 0.000 -29.250
Traceless
 xyz
x -3.154 4.208 0.000
y 4.208 1.525 0.000
z 0.000 0.000 1.629
Polar
3z2-r23.259
x2-y2-3.119
xy4.208
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.649 0.387 0.000
y 0.387 6.077 0.000
z 0.000 0.000 4.524


<r2> (average value of r2) Å2
<r2> 137.034
(<r2>)1/2 11.706