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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCSD=FULL/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-116.289403
Energy at 298.15K-116.292576
HF Energy-115.835107
Nuclear repulsion energy63.151290
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 CCSD=FULL/daug-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 A1 3327 3327 0.11      
2 A1 3078 3078 61.03      
3 A1 1703 1703 19.25      
4 A1 1520 1520 1.58      
5 A1 1167 1167 0.00      
6 A1 924 924 3.27      
7 A2 1016 1016 0.00      
8 A2 798 798 0.00      
9 B1 3152 3152 38.97      
10 B1 1096 1096 1.69      
11 B1 562 562 81.83      
12 B2 3281 3281 0.22      
13 B2 1074 1074 27.23      
14 B2 1032 1032 22.49      
15 B2 793 793 15.69      

Unscaled Zero Point Vibrational Energy (zpe) 12261.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12261.2 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 CCSD=FULL/daug-cc-pVDZ
ABC
0.98127 0.71845 0.45290

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.870
C2 0.000 0.656 -0.505
C3 0.000 -0.656 -0.505
H4 0.000 1.595 -1.049
H5 0.000 -1.595 -1.049
H6 0.921 0.000 1.468
H7 -0.921 0.000 1.468

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.52381.52382.49572.49571.09831.0983
C21.52381.31271.08512.31642.27432.2743
C31.52381.31272.31641.08512.27432.2743
H42.49571.08512.31643.19033.11933.1193
H52.49572.31641.08513.19033.11933.1193
H61.09832.27432.27433.11933.11931.8425
H71.09832.27432.27433.11933.11931.8425

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.485 C1 C2 H4 145.613
C1 C3 C2 64.485 C1 C3 H5 145.613
C2 C1 C3 51.030 C2 C1 H6 119.427
C2 C1 H7 119.427 C2 C3 H5 149.902
C3 C1 H6 119.427 C3 C1 H7 119.427
C3 C2 H4 149.902 H6 C1 H7 114.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability