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

using model chemistry: HSEh1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-268.108363
Energy at 298.15K-268.115544
HF Energy-268.108363
Nuclear repulsion energy178.055815
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/6-31G**
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' 3165 3021 17.30      
2 A' 3086 2945 10.42      
3 A' 3078 2937 11.31      
4 A' 3074 2934 72.94      
5 A' 1861 1776 290.01      
6 A' 1527 1457 7.71      
7 A' 1508 1439 2.23      
8 A' 1437 1371 15.72      
9 A' 1414 1349 1.85      
10 A' 1393 1329 0.80      
11 A' 1258 1201 389.41      
12 A' 1146 1094 11.67      
13 A' 1059 1011 21.65      
14 A' 877 837 9.13      
15 A' 804 767 3.54      
16 A' 384 367 6.67      
17 A' 228 218 7.33      
18 A" 3171 3026 27.14      
19 A" 3133 2990 9.42      
20 A" 1496 1427 6.31      
21 A" 1301 1241 0.95      
22 A" 1186 1132 5.13      
23 A" 1048 1000 0.34      
24 A" 810 773 1.14      
25 A" 358 342 20.92      
26 A" 238 227 1.98      
27 A" 54 51 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 20046.7 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 19130.6 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/6-31G**
ABC
0.59717 0.09731 0.08638

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.170 -0.270 0.000
C2 -0.690 -0.562 0.000
O3 0.000 0.702 0.000
C4 1.332 0.623 0.000
O5 1.978 -0.392 0.000
H6 -2.733 -1.207 0.000
H7 -2.455 0.303 0.887
H8 -2.455 0.303 -0.887
H9 -0.380 -1.131 -0.882
H10 -0.380 -1.131 0.882
H11 1.753 1.640 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50862.37793.61374.15001.09371.09321.09322.17342.17344.3637
C21.50861.44012.34322.67352.14272.15622.15621.09461.09463.2892
O32.37791.44011.33392.26053.33422.64082.64082.06952.06951.9885
C43.61372.34321.33391.20344.45793.90233.90232.60462.60461.1011
O54.15002.67352.26051.20344.78134.57414.57412.62402.62402.0444
H61.09372.14273.33424.45794.78131.77311.77312.51422.51425.3139
H71.09322.15622.64083.90234.57411.77311.77313.08052.52214.5041
H81.09322.15622.64083.90234.57411.77311.77312.52213.08054.5041
H92.17341.09462.06952.60462.62402.51423.08052.52211.76443.6067
H102.17341.09462.06952.60462.62402.51422.52213.08051.76443.6067
H114.36373.28921.98851.10112.04445.31394.50414.50413.60673.6067

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 107.470 C1 C2 H9 112.236
C1 C2 H10 112.236 C2 C1 H6 109.824
C2 C1 H7 110.930 C2 C1 H8 110.930
C2 O3 C4 115.228 O3 C2 H9 108.698
O3 C2 H10 108.698 O3 C4 O5 125.900
O3 C4 H11 109.124 O5 C4 H11 124.976
H6 C1 H7 108.344 H6 C1 H8 108.344
H7 C1 H8 108.387 H9 C2 H10 107.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.415      
2 C -0.012      
3 O -0.431      
4 C 0.431      
5 O -0.435      
6 H 0.141      
7 H 0.150      
8 H 0.150      
9 H 0.150      
10 H 0.150      
11 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.991 0.540 0.000 2.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.399 4.669 0.000
y 4.669 -28.952 0.000
z 0.000 0.000 -28.935
Traceless
 xyz
x -3.455 4.669 0.000
y 4.669 1.715 0.000
z 0.000 0.000 1.740
Polar
3z2-r23.480
x2-y2-3.447
xy4.669
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.946 0.248 0.000
y 0.248 5.636 0.000
z 0.000 0.000 4.264


<r2> (average value of r2) Å2
<r2> 134.592
(<r2>)1/2 11.601