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: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-727.977305
Energy at 298.15K-727.983499
Nuclear repulsion energy290.584081
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/6-31G*
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 3158 3032 30.63      
2 A 3141 3016 16.71      
3 A 3135 3011 0.42      
4 A 3089 2967 10.87      
5 A 3069 2947 11.74      
6 A 1919 1842 485.63      
7 A 1542 1481 3.46      
8 A 1525 1465 5.59      
9 A 1514 1454 6.54      
10 A 1450 1393 12.83      
11 A 1414 1358 9.28      
12 A 1316 1264 0.71      
13 A 1206 1158 513.26      
14 A 1186 1139 4.27      
15 A 1145 1100 23.48      
16 A 1038 997 61.19      
17 A 928 892 104.13      
18 A 830 797 0.83      
19 A 663 637 19.66      
20 A 639 614 93.80      
21 A 525 504 3.98      
22 A 437 420 14.47      
23 A 326 313 5.96      
24 A 260 250 0.52      
25 A 191 183 0.17      
26 A 111 106 0.67      
27 A 77 74 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 17916.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17205.5 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/6-31G*
ABC
0.16802 0.06020 0.04507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.559 0.678 -0.000
H2 -1.166 -1.104 0.889
H3 -1.166 -1.104 -0.889
C4 -1.397 -0.511 -0.000
H5 -3.042 0.578 0.888
H6 -3.508 -0.888 0.000
H7 -3.042 0.578 -0.888
C8 -2.834 -0.025 0.000
O9 1.459 1.621 0.000
Cl10 1.501 -1.010 0.000
C11 0.766 0.654 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.08172.08171.45472.63953.33912.63952.38112.22682.66301.3247
H22.08171.77741.09312.52002.51423.08362.17603.88602.81262.7590
H32.08171.77741.09313.08362.51422.52002.17603.88602.81262.7590
C41.45471.09311.09312.16392.14422.16391.51663.56352.94062.4567
H52.63952.52003.08362.16391.77661.77671.09404.70474.89413.9110
H63.33912.51422.51422.14421.77661.77661.09515.56425.01034.5434
H72.63953.08362.52002.16391.77671.77661.09404.70474.89413.9110
C82.38112.17602.17601.51661.09401.09511.09404.59704.44513.6630
O92.22683.88603.88603.56354.70475.56424.70474.59702.63101.1891
Cl102.66302.81262.81262.94064.89415.01034.89414.44512.63101.8194
C111.32472.75902.75902.45673.91104.54343.91103.66301.18911.8194

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 108.752 O1 C4 H3 108.752
O1 C4 C8 106.504 O1 C11 O9 124.612
O1 C11 Cl10 114.857 H2 C4 H3 108.788
H2 C4 C8 111.968 H3 C4 C8 111.968
C4 O1 C11 124.164 C4 C8 H5 110.934
C4 C8 H6 109.312 C4 C8 H7 110.934
H5 C8 H6 108.498 H5 C8 H7 108.597
H6 C8 H7 108.498 O9 C11 Cl10 120.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.398 -0.359   -0.322
2 H 0.179 -0.024   0.001
3 H 0.179 -0.024   0.001
4 C -0.053 0.413   0.362
5 H 0.175 0.095   0.119
6 H 0.162 0.082   0.104
7 H 0.175 0.095   0.119
8 C -0.461 -0.309   -0.386
9 O -0.367 -0.416   -0.392
10 Cl -0.071 -0.197   -0.187
11 C 0.482 0.644   0.583


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.457 -2.063 0.000 4.026
CHELPG -3.465 -1.978 0.000 3.989
AIM        
ESP -3.478 -1.995 0.000 4.010


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.416 -0.714 0.000
y -0.714 -45.208 0.000
z 0.000 0.000 -40.550
Traceless
 xyz
x 1.463 -0.714 0.000
y -0.714 -4.225 0.000
z 0.000 0.000 2.762
Polar
3z2-r25.524
x2-y23.792
xy-0.714
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.730 -0.055 -0.000
y -0.055 7.855 0.000
z -0.000 0.000 4.847


<r2> (average value of r2) Å2
<r2> 234.457
(<r2>)1/2 15.312