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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: CCSD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CCSD/3-21G*
 hartrees
Energy at 0K-116.706583
Energy at 298.15K-116.712967
HF Energy-116.399536
Nuclear repulsion energy74.749516
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/3-21G*
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' 3160 2980 0.00      
2 A1' 1562 1473 0.00      
3 A1' 1131 1067 0.00      
4 A1" 1193 1125 0.00      
5 A2' 1159 1093 0.00      
6 A2" 3250 3065 24.94      
7 A2" 869 820 0.57      
8 E' 3149 2970 16.30      
8 E' 3149 2970 16.30      
9 E' 1538 1450 2.14      
9 E' 1538 1450 2.14      
10 E' 1132 1068 17.65      
10 E' 1132 1068 17.65      
11 E' 840 793 14.49      
11 E' 840 793 14.49      
12 E" 3228 3044 0.00      
12 E" 3228 3044 0.00      
13 E" 1241 1171 0.00      
13 E" 1241 1171 0.00      
14 E" 782 738 0.00      
14 E" 782 738 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18071.7 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 17043.4 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/3-21G*
ABC
0.65415 0.65415 0.40725

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.887 0.000
C2 0.768 -0.443 0.000
C3 -0.768 -0.443 0.000
H4 0.000 1.471 0.916
H5 1.274 -0.736 0.916
H6 -1.274 -0.736 0.916
H7 0.000 1.471 -0.916
H8 1.274 -0.736 -0.916
H9 -1.274 -0.736 -0.916

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.53581.53581.08662.25712.25711.08662.25712.2571
C21.53581.53582.25711.08662.25712.25711.08662.2571
C31.53581.53582.25712.25711.08662.25712.25711.0866
H41.08662.25712.25712.54832.54831.83193.13843.1384
H52.25711.08662.25712.54832.54833.13841.83193.1384
H62.25712.25711.08662.54832.54833.13843.13841.8319
H71.08662.25712.25711.83193.13843.13842.54832.5483
H82.25711.08662.25713.13841.83193.13842.54832.5483
H92.25712.25711.08663.13843.13841.83192.54832.5483

picture of Cyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 60.000 C1 C2 H5 117.768
C1 C2 H8 117.768 C1 C3 C2 60.000
C1 C3 H6 117.768 C1 C3 H9 117.768
C2 C1 C3 60.000 C2 C1 H4 117.768
C2 C1 H7 117.768 C2 C3 H6 117.768
C2 C3 H9 117.768 C3 C1 H4 117.768
C3 C1 H7 117.768 C3 C2 H5 117.768
C3 C2 H8 117.768 H4 C1 H7 114.910
H5 C2 H8 114.910 H6 C3 H9 114.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability