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

using model chemistry: B3LYP/TZVP

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 B3LYP/TZVP
 hartrees
Energy at 0K-268.485738
Energy at 298.15K-268.492892
HF Energy-268.485738
Nuclear repulsion energy177.220001
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 B3LYP/TZVP
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' 3110 3003 22.77      
2 A' 3057 2951 11.02      
3 A' 3044 2939 13.65      
4 A' 3038 2933 62.30      
5 A' 1792 1730 334.09      
6 A' 1521 1468 8.41      
7 A' 1501 1449 3.06      
8 A' 1432 1382 14.05      
9 A' 1409 1360 1.69      
10 A' 1400 1351 3.22      
11 A' 1201 1159 416.37      
12 A' 1135 1095 10.67      
13 A' 1024 989 22.24      
14 A' 853 823 16.44      
15 A' 787 760 0.52      
16 A' 380 367 5.38      
17 A' 224 216 7.41      
18 A" 3122 3014 36.59      
19 A" 3093 2986 3.28      
20 A" 1489 1438 6.97      
21 A" 1301 1256 1.17      
22 A" 1181 1140 4.46      
23 A" 1038 1002 0.03      
24 A" 816 788 0.57      
25 A" 346 334 23.23      
26 A" 233 225 2.26      
27 A" 57 55 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 19791.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 19106.4 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 B3LYP/TZVP
ABC
0.60347 0.09532 0.08493

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.186 -0.285 0.000
C2 -0.703 -0.580 0.000
O3 0.000 0.691 0.000
C4 1.338 0.638 0.000
O5 2.006 -0.360 0.000
H6 -2.746 -1.223 0.000
H7 -2.472 0.284 0.885
H8 -2.472 0.284 -0.885
H9 -0.397 -1.146 -0.882
H10 -0.397 -1.146 0.882
H11 1.739 1.660 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51202.39413.64274.19281.09191.09091.09092.17202.17204.3806
C21.51201.45322.37692.71822.14132.15882.15881.09131.09133.3142
O32.39411.45321.33892.26513.34702.65702.65702.07622.07621.9907
C43.64272.37691.33891.20124.48753.92723.92722.64012.64011.0981
O54.19282.71822.26511.20124.82964.61014.61012.67802.67802.0379
H61.09192.14133.34704.48754.82961.76921.76922.50982.50985.3314
H71.09092.15882.65703.92724.61011.76921.77063.07782.51994.5176
H81.09092.15882.65703.92724.61011.76921.77062.51993.07784.5176
H92.17201.09132.07622.64012.67802.50983.07782.51991.76373.6352
H102.17201.09132.07622.64012.67802.50982.51993.07781.76373.6352
H114.38063.31421.99071.09812.03795.33144.51764.51763.63523.6352

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 107.675 C1 C2 H9 112.088
C1 C2 H10 112.088 C2 C1 H6 109.584
C2 C1 H7 111.046 C2 C1 H8 111.046
C2 O3 C4 116.650 O3 C2 H9 108.532
O3 C2 H10 108.532 O3 C4 O5 126.094
O3 C4 H11 109.143 O5 C4 H11 124.763
H6 C1 H7 108.294 H6 C1 H8 108.294
H7 C1 H8 108.492 H9 C2 H10 107.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.316      
2 C -0.092      
3 O -0.211      
4 C 0.228      
5 O -0.328      
6 H 0.117      
7 H 0.123      
8 H 0.123      
9 H 0.132      
10 H 0.132      
11 H 0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.147 0.495 0.000 2.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.821 5.066 0.000
y 5.066 -29.775 0.000
z 0.000 0.000 -29.614
Traceless
 xyz
x -4.126 5.066 0.000
y 5.066 1.942 0.000
z 0.000 0.000 2.184
Polar
3z2-r24.368
x2-y2-4.046
xy5.066
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.794 0.175 0.000
y 0.175 6.352 0.000
z 0.000 0.000 4.972


<r2> (average value of r2) Å2
<r2> 137.053
(<r2>)1/2 11.707