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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: QCISD(T)=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-116.459572
Energy at 298.15K-116.462784
HF Energy-115.868293
Nuclear repulsion energy63.766082
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3317 3317        
2 A1 3078 3078        
3 A1 1686 1686        
4 A1 1532 1532        
5 A1 1157 1157        
6 A1 931 931        
7 A2 1027 1027        
8 A2 856 856        
9 B1 3150 3150        
10 B1 1117 1117        
11 B1 600 600        
12 B2 3272 3272        
13 B2 1081 1081        
14 B2 1038 1038        
15 B2 795 795        

Unscaled Zero Point Vibrational Energy (zpe) 12317.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12317.8 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 QCISD(T)=FULL/Def2TZVPP
ABC
1.00251 0.73065 0.46142

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.864
C2 0.000 0.649 -0.501
C3 0.000 -0.649 -0.501
H4 0.000 1.578 -1.039
H5 0.000 -1.578 -1.039
H6 0.912 0.000 1.452
H7 -0.912 0.000 1.452

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51191.51192.47192.47191.08491.0849
C21.51191.29881.07272.29112.25112.2511
C31.51191.29882.29111.07272.25112.2511
H42.47191.07272.29113.15543.08603.0860
H52.47192.29111.07273.15543.08603.0860
H61.08492.25112.25113.08603.08601.8240
H71.08492.25112.25113.08603.08601.8240

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.562 C1 C2 H4 145.513
C1 C3 C2 64.562 C1 C3 H5 145.513
C2 C1 C3 50.875 C2 C1 H6 119.280
C2 C1 H7 119.280 C2 C3 H5 149.924
C3 C1 H6 119.280 C3 C1 H7 119.280
C3 C2 H4 149.924 H6 C1 H7 114.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability