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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-193.453660
Energy at 298.15K-193.458826
HF Energy-192.743158
Nuclear repulsion energy145.928224
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/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 3476 3335 61.59      
2 A 3273 3140 11.44      
3 A 3195 3065 5.88      
4 A 3173 3044 4.94      
5 A 2201 2111 6.35      
6 A 1517 1456 0.52      
7 A 1392 1335 4.41      
8 A 1229 1179 1.20      
9 A 1138 1092 0.49      
10 A 1076 1032 3.66      
11 A 978 938 17.41      
12 A 812 779 1.52      
13 A 760 729 2.45      
14 A 648 621 36.78      
15 A 487 467 5.08      
16 A 194 186 1.09      
17 A 3259 3127 0.18      
18 A 3165 3037 12.60      
19 A 1463 1404 1.46      
20 A 1202 1153 0.59      
21 A 1123 1078 1.44      
22 A 1084 1040 3.39      
23 A 933 895 5.48      
24 A 830 796 6.25      
25 A 598 574 41.40      
26 A 501 480 0.06      
27 A 204 195 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 19954.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19144.4 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 QCISD/cc-pVDZ
ABC
0.51956 0.10933 0.10390

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.650 0.000
C2 -1.088 -0.322 0.000
H3 -0.321 1.697 0.000
C4 1.286 0.332 0.756
C5 1.286 0.332 -0.756
C6 -2.000 -1.140 0.000
H7 -2.801 -1.860 0.000
H8 1.777 1.161 1.276
H9 1.332 -0.634 1.269
H10 1.777 1.161 -1.276
H11 1.332 -0.634 -1.269

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.45861.09581.52561.52562.68393.76122.24652.24352.24652.2435
C21.45862.15952.57642.57641.22532.30263.46932.75093.46932.7509
H31.09582.15952.24072.24073.29664.33642.51343.12742.51343.1274
C41.52562.57642.24071.51253.67964.69961.09491.09462.24912.2440
C51.52562.57642.24071.51253.67964.69962.24912.24401.09491.0946
C62.68391.22533.29663.67963.67961.07734.60323.60164.60323.6016
H73.76122.30264.33644.69964.69961.07735.63184.49465.63184.4946
H82.24653.46932.51341.09492.24914.60325.63181.84992.55203.1460
H92.24352.75093.12741.09462.24403.60164.49461.84993.14602.5372
H102.24653.46932.51342.24911.09494.60325.63182.55203.14601.8499
H112.24352.75093.12742.24401.09463.60164.49463.14602.53721.8499

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.832 C1 C4 C5 60.284
C1 C4 H8 117.072 C1 C4 H9 116.836
C1 C5 C4 60.284 C1 C5 H10 117.072
C1 C5 H11 116.836 C2 C1 H3 114.684
C2 C1 C4 119.370 C2 C1 C5 119.370
C2 C6 H7 179.969 H3 C1 C4 116.516
H3 C1 C5 116.516 C4 C1 C5 59.431
C4 C5 H10 118.340 C4 C5 H11 117.911
C5 C4 H8 118.340 C5 C4 H9 117.911
H8 C4 H9 115.321 H10 C5 H11 115.321
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability