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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: QCISD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-193.472249
Energy at 298.15K-193.477375
HF Energy-192.764895
Nuclear repulsion energy146.812491
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/6-311G*
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 3464 3316 51.40      
2 A 3248 3109 17.07      
3 A 3173 3038 6.86      
4 A 3153 3018 6.44      
5 A 2201 2107 6.88      
6 A 1539 1473 1.22      
7 A 1409 1349 3.31      
8 A 1237 1184 1.20      
9 A 1153 1104 0.80      
10 A 1090 1043 6.84      
11 A 980 939 20.19      
12 A 821 786 1.16      
13 A 767 735 3.41      
14 A 617 591 48.00      
15 A 496 475 4.21      
16 A 196 188 1.15      
17 A 3234 3096 0.12      
18 A 3146 3012 16.26      
19 A 1494 1430 3.66      
20 A 1221 1169 0.77      
21 A 1141 1092 2.24      
22 A 1097 1050 5.18      
23 A 935 895 4.44      
24 A 845 809 9.01      
25 A 558 534 44.97      
26 A 489 468 6.81      
27 A 200 191 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 19951.1 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 19101.2 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 QCISD/6-311G*
ABC
0.52383 0.11075 0.10524

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.646 0.000
C2 -1.088 -0.313 0.000
H3 -0.308 1.690 0.000
C4 1.280 0.323 0.753
C5 1.280 0.323 -0.753
C6 -1.988 -1.126 0.000
H7 -2.786 -1.834 0.000
H8 1.772 1.142 1.271
H9 1.322 -0.635 1.262
H10 1.772 1.142 -1.271
H11 1.322 -0.635 -1.262

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.45071.08801.52011.52012.66323.73022.23662.23202.23662.2320
C21.45072.14932.56572.56571.21252.27963.45202.73963.45202.7396
H31.08802.14932.22652.22653.27874.30802.49863.10712.49863.1071
C41.52012.56572.22651.50613.65364.66451.08671.08612.23822.2317
C51.52012.56572.22651.50613.65364.66452.23822.23171.08671.0861
C62.66321.21253.27873.65363.65361.06714.57163.57594.57163.5759
H73.73022.27964.30804.66454.66451.06715.59044.46135.59044.4613
H82.23663.45202.49861.08672.23824.57165.59041.83372.54213.1270
H92.23202.73963.10711.08612.23173.57594.46131.83373.12702.5238
H102.23663.45202.49862.23821.08674.57165.59042.54213.12701.8337
H112.23202.73963.10712.23171.08613.57594.46133.12702.52381.8337

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.280 C1 C4 C5 60.305
C1 C4 H8 117.217 C1 C4 H9 116.855
C1 C5 C4 60.305 C1 C5 H10 117.217
C1 C5 H11 116.855 C2 C1 H3 114.939
C2 C1 C4 119.437 C2 C1 C5 119.437
C2 C6 H7 179.491 H3 C1 C4 116.247
H3 C1 C5 116.247 C4 C1 C5 59.391
C4 C5 H10 118.470 C4 C5 H11 117.939
C5 C4 H8 118.470 C5 C4 H9 117.939
H8 C4 H9 115.119 H10 C5 H11 115.119
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability