return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H5ClO2 (Carbonochloridic acid, ethyl ester)

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-727.902088
Energy at 298.15K-727.908077
Nuclear repulsion energy286.831377
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/6-31+G**
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 3071 3055 28.37      
2 A 3049 3033 0.22      
3 A 3048 3032 18.41      
4 A 3004 2988 9.86      
5 A 2980 2964 14.64      
6 A 1803 1794 483.53      
7 A 1477 1470 3.13      
8 A 1464 1456 7.53      
9 A 1452 1444 8.40      
10 A 1387 1379 11.84      
11 A 1353 1346 10.37      
12 A 1258 1251 0.97      
13 A 1133 1127 3.72      
14 A 1121 1115 423.42      
15 A 1086 1080 89.03      
16 A 975 970 41.48      
17 A 870 865 115.19      
18 A 801 797 0.95      
19 A 624 621 11.67      
20 A 595 592 90.94      
21 A 500 497 5.42      
22 A 401 399 21.80      
23 A 312 310 6.14      
24 A 246 245 0.38      
25 A 182 181 0.16      
26 A 112 112 0.73      
27 A 70 69 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 17186.9 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 17095.8 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/6-31+G**
ABC
0.16301 0.05874 0.04391

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.565 0.694 -0.000
H2 1.180 -1.108 -0.896
H3 1.181 -1.107 0.897
C4 1.421 -0.518 0.000
H5 3.080 0.576 -0.895
H6 3.539 -0.900 -0.000
H7 3.080 0.576 0.894
C8 2.866 -0.028 -0.000
O9 -1.478 1.643 0.000
Cl10 -1.520 -1.027 -0.000
C11 -0.774 0.666 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.10452.10451.48412.67163.37412.67172.41092.25282.70381.3394
H22.10451.79351.09942.53842.53143.10672.19293.92892.84632.7875
H32.10451.79351.09943.10672.53152.53832.19293.92892.84692.7876
C41.48411.09941.09942.17992.15222.17991.52593.61582.98432.4940
H52.67162.53843.10672.17991.78651.78891.10054.76584.95263.9572
H63.37412.53142.53152.15221.78651.78651.10215.62475.06034.5884
H72.67173.10672.53832.17991.78891.78651.10054.76594.95293.9574
C82.41092.19292.19291.52591.10051.10211.10054.65384.49783.7050
O92.25283.92893.92893.61584.76585.62474.76594.65382.67001.2039
Cl102.70382.84632.84692.98434.95265.06034.95294.49782.67001.8504
C111.33942.78752.78762.49403.95724.58843.95743.70501.20391.8504

picture of Carbonochloridic acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C4 H2 108.172 O1 C4 H3 108.170
O1 C4 C8 106.441 O1 C11 O9 124.611
O1 C11 Cl10 114.970 H2 C4 H3 109.305
H2 C4 C8 112.279 H3 C4 C8 112.278
C4 O1 C11 124.006 C4 C8 H5 111.165
C4 C8 H6 108.896 C4 C8 H7 111.166
H5 C8 H6 108.399 H5 C8 H7 108.735
H6 C8 H7 108.399 O9 C11 Cl10 120.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.256      
2 H 0.165      
3 H 0.165      
4 C 0.055      
5 H 0.170      
6 H 0.154      
7 H 0.170      
8 C -0.667      
9 O -0.296      
10 Cl 0.038      
11 C 0.301      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.657 -2.256 0.000 4.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.356 0.790 0.000
y 0.790 -46.940 0.000
z 0.000 0.000 -41.714
Traceless
 xyz
x 1.970 0.790 0.000
y 0.790 -4.905 0.000
z 0.000 0.000 2.934
Polar
3z2-r25.868
x2-y24.583
xy0.790
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 240.629
(<r2>)1/2 15.512