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

using model chemistry: BLYP/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 BLYP/TZVP
 hartrees
Energy at 0K-268.402813
Energy at 298.15K-268.409821
HF Energy-268.402813
Nuclear repulsion energy175.263746
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 BLYP/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' 3032 3024 24.25      
2 A' 2982 2974 12.43      
3 A' 2972 2965 15.48      
4 A' 2944 2936 67.02      
5 A' 1709 1705 297.03      
6 A' 1480 1476 6.98      
7 A' 1464 1460 3.03      
8 A' 1389 1386 10.27      
9 A' 1362 1359 0.96      
10 A' 1354 1350 9.88      
11 A' 1113 1110 330.34      
12 A' 1096 1093 41.24      
13 A' 978 975 26.78      
14 A' 805 803 16.83      
15 A' 748 746 0.66      
16 A' 365 364 4.64      
17 A' 215 214 6.58      
18 A" 3046 3038 38.37      
19 A" 3016 3009 3.48      
20 A" 1454 1450 6.51      
21 A" 1258 1255 0.77      
22 A" 1142 1139 4.15      
23 A" 984 982 0.09      
24 A" 796 794 0.63      
25 A" 340 339 20.80      
26 A" 226 225 1.89      
27 A" 49 49 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 19158.7 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 19110.8 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 BLYP/TZVP
ABC
0.58955 0.09317 0.08298

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.209 -0.281 0.000
C2 -0.718 -0.587 0.000
O3 0.000 0.703 0.000
C4 1.357 0.638 0.000
O5 2.031 -0.371 0.000
H6 -2.775 -1.223 0.000
H7 -2.496 0.292 0.891
H8 -2.496 0.292 -0.891
H9 -0.409 -1.153 -0.888
H10 -0.409 -1.153 0.888
H11 1.757 1.669 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.52172.41823.68234.24011.09871.09731.09732.18802.18804.4191
C21.52171.47672.40982.75702.15302.17372.17371.09761.09763.3489
O32.41821.47671.35862.29733.37802.68152.68152.09832.09832.0047
C43.68232.40981.35861.21354.53183.96933.96932.66782.66781.1056
O54.24012.75702.29731.21354.88044.66024.66022.71152.71152.0585
H61.09872.15303.37804.53184.88041.77911.77912.52812.52815.3759
H71.09732.17372.68153.96934.66021.77911.78143.09922.53784.5577
H81.09732.17372.68153.96934.66021.77911.78142.53783.09924.5577
H92.18801.09762.09832.66782.71152.52813.09922.53781.77643.6667
H102.18801.09762.09832.66782.71152.52812.53783.09921.77643.6667
H114.41913.34892.00471.10562.05855.37594.55774.55773.66673.6667

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 107.501 C1 C2 H9 112.291
C1 C2 H10 112.291 C2 C1 H6 109.437
C2 C1 H7 111.164 C2 C1 H8 111.164
C2 O3 C4 116.348 O3 C2 H9 108.289
O3 C2 H10 108.289 O3 C4 O5 126.456
O3 C4 H11 108.454 O5 C4 H11 125.090
H6 C1 H7 108.223 H6 C1 H8 108.223
H7 C1 H8 108.537 H9 C2 H10 108.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.315      
2 C -0.098      
3 O -0.193      
4 C 0.187      
5 O -0.298      
6 H 0.117      
7 H 0.124      
8 H 0.124      
9 H 0.133      
10 H 0.133      
11 H 0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.167 0.405 0.000 2.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.951 4.909 0.000
y 4.909 -30.173 0.000
z 0.000 0.000 -29.931
Traceless
 xyz
x -3.899 4.909 0.000
y 4.909 1.769 0.000
z 0.000 0.000 2.131
Polar
3z2-r24.261
x2-y2-3.779
xy4.909
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.363 0.261 0.000
y 0.261 6.669 0.000
z 0.000 0.000 5.157


<r2> (average value of r2) Å2
<r2> 139.876
(<r2>)1/2 11.827