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 CH2ClCCCl (1,3-dichloropropyne)

using model chemistry: QCISD(T)=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-1034.488925
Energy at 298.15K-1034.489718
HF Energy-1033.702357
Nuclear repulsion energy213.443366
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 QCISD(T)=FULL/aug-cc-pVDZ
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' 3089 2997        
2 A' 2281 2213        
3 A' 1453 1410        
4 A' 1275 1237        
5 A' 1112 1079        
6 A' 705 684        
7 A' 617 598        
8 A' 364 353        
9 A' 259 251        
10 A' 81 78        
11 A" 3152 3058        
12 A" 1179 1143        
13 A" 902 875        
14 A" 244 236        
15 A" 152 148        

Unscaled Zero Point Vibrational Energy (zpe) 8432.5 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 8180.3 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
0.55745 0.03073 0.02929

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.197 0.208 0.000
C2 0.000 0.480 0.000
C3 -1.404 0.911 0.000
Cl4 2.805 -0.226 0.000
Cl5 -2.539 -0.515 0.000
H6 -1.639 1.496 0.901
H7 -1.639 1.496 -0.901

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.22752.69451.66563.80593.24193.2419
C21.22751.46892.89262.72732.12802.1280
C32.69451.46894.36011.82281.09931.0993
Cl41.66562.89264.36015.35244.84994.8499
Cl53.80592.72731.82285.35242.38032.3803
H63.24192.12801.09934.84992.38031.8023
H73.24192.12801.09934.84992.38031.8023

picture of 1,3-dichloropropyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 175.704 C2 C1 Cl4 177.669
C2 C3 Cl5 111.449 C2 C3 H6 111.093
C2 C3 H7 111.093 Cl5 C3 H6 106.446
Cl5 C3 H7 106.446 H6 C3 H7 110.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability