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

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-268.487017
Energy at 298.15K-268.494169
HF Energy-268.487017
Nuclear repulsion energy177.533224
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/6-311+G(3df,2p)
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' 3102 2999 21.04      
2 A' 3049 2949 10.41      
3 A' 3036 2936 13.94      
4 A' 3027 2927 57.85      
5 A' 1792 1733 343.04      
6 A' 1520 1469 8.53      
7 A' 1500 1451 2.67      
8 A' 1425 1378 10.67      
9 A' 1401 1355 0.71      
10 A' 1396 1350 3.68      
11 A' 1206 1167 408.17      
12 A' 1131 1094 10.25      
13 A' 1024 990 23.13      
14 A' 852 824 14.31      
15 A' 787 761 0.74      
16 A' 380 367 5.08      
17 A' 224 216 7.43      
18 A" 3112 3009 34.04      
19 A" 3083 2982 1.94      
20 A" 1489 1440 6.70      
21 A" 1298 1255 1.28      
22 A" 1179 1140 3.84      
23 A" 1042 1008 0.01      
24 A" 812 785 0.74      
25 A" 346 335 21.29      
26 A" 230 222 2.10      
27 A" 59 57 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 19750.6 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 19098.9 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/6-311+G(3df,2p)
ABC
0.60515 0.09568 0.08524

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.183 -0.289 0.000
C2 -0.699 -0.578 0.000
O3 0.000 0.691 0.000
C4 1.334 0.638 0.000
O5 2.001 -0.358 0.000
H6 -2.738 -1.227 0.000
H7 -2.472 0.279 0.884
H8 -2.472 0.279 -0.884
H9 -0.390 -1.141 -0.881
H10 -0.390 -1.141 0.881
H11 1.737 1.660 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51182.39303.63754.18501.09051.08971.08972.17182.17184.3774
C21.51181.44952.36972.70962.14002.15832.15831.09001.09003.3079
O32.39301.44951.33542.26003.34382.65722.65722.07052.07051.9884
C43.63752.36971.33541.19934.47983.92383.92382.62992.62991.0977
O54.18502.70962.26001.19934.81894.60404.60402.66612.66612.0352
H61.09052.14003.34384.47984.81891.76691.76692.50952.50955.3256
H71.08972.15832.65723.92384.60401.76691.76813.07652.52014.5165
H81.08972.15832.65723.92384.60401.76691.76812.52013.07654.5165
H92.17181.09002.07052.62992.66612.50953.07652.52011.76133.6256
H102.17181.09002.07052.62992.66612.50952.52013.07651.76133.6256
H114.37743.30791.98841.09772.03525.32564.51654.51653.62563.6256

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 107.804 C1 C2 H9 112.162
C1 C2 H10 112.162 C2 C1 H6 109.583
C2 C1 H7 111.088 C2 C1 H8 111.088
C2 O3 C4 116.561 O3 C2 H9 108.405
O3 C2 H10 108.405 O3 C4 O5 126.077
O3 C4 H11 109.229 O5 C4 H11 124.694
H6 C1 H7 108.276 H6 C1 H8 108.276
H7 C1 H8 108.440 H9 C2 H10 107.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.456      
2 C 0.069      
3 O -0.518      
4 C 0.572      
5 O -0.587      
6 H 0.148      
7 H 0.150      
8 H 0.150      
9 H 0.161      
10 H 0.161      
11 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.186 0.535 0.000 2.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.781 4.943 0.000
y 4.943 -29.741 0.000
z 0.000 0.000 -29.655
Traceless
 xyz
x -4.083 4.943 0.000
y 4.943 1.977 0.000
z 0.000 0.000 2.107
Polar
3z2-r24.214
x2-y2-4.040
xy4.943
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.461 0.223 0.000
y 0.223 6.750 0.000
z 0.000 0.000 5.367


<r2> (average value of r2) Å2
<r2> 136.632
(<r2>)1/2 11.689