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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-193.139723
Energy at 298.15K-193.144864
HF Energy-192.650605
Nuclear repulsion energy145.207825
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 CCD/6-31G
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 3445 3305 37.90      
2 A 3239 3108 22.58      
3 A 3157 3029 7.93      
4 A 3148 3020 6.27      
5 A 2189 2100 2.98      
6 A 1551 1488 0.63      
7 A 1420 1362 2.96      
8 A 1230 1180 0.34      
9 A 1167 1120 2.60      
10 A 1153 1106 7.21      
11 A 972 933 16.42      
12 A 838 804 0.54      
13 A 760 729 3.88      
14 A 629 603 54.47      
15 A 511 490 6.84      
16 A 197 189 1.01      
17 A 3224 3094 0.11      
18 A 3141 3014 15.46      
19 A 1530 1468 2.56      
20 A 1244 1194 0.86      
21 A 1189 1140 0.68      
22 A 1158 1111 7.57      
23 A 950 911 1.54      
24 A 850 816 14.18      
25 A 568 545 57.04      
26 A 490 471 3.83      
27 A 176 169 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 20061.8 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 19249.3 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 CCD/6-31G
ABC
0.51752 0.10765 0.10210

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.638 0.000
C2 -1.109 -0.317 0.000
H3 -0.307 1.686 0.000
C4 1.301 0.333 0.762
C5 1.301 0.333 -0.762
C6 -2.021 -1.137 0.000
H7 -2.828 -1.844 0.000
H8 1.785 1.156 1.289
H9 1.366 -0.627 1.275
H10 1.785 1.156 -1.289
H11 1.366 -0.627 -1.275

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.46331.09251.53801.53802.68933.76192.26182.25612.26182.2561
C21.46332.15752.60992.60991.22622.29873.49382.80133.49382.8013
H31.09252.15752.23532.23533.30244.33732.51353.12632.51353.1263
C41.53802.60992.23531.52323.71144.72911.09071.09062.26202.2523
C51.53802.60992.23531.52323.71144.72912.26202.25231.09071.0906
C62.68931.22623.30243.71143.71141.07264.62623.65424.62623.6542
H73.76192.29874.33734.72914.72911.07265.65114.54875.65114.5487
H82.26183.49382.51351.09072.26204.62625.65111.83192.57803.1509
H92.25612.80133.12631.09062.25233.65424.54871.83193.15092.5495
H102.26183.49382.51352.26201.09074.62625.65112.57803.15091.8319
H112.25612.80133.12632.25231.09063.65424.54873.15092.54951.8319

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 178.720 C1 C4 C5 60.318
C1 C4 H8 117.722 C1 C4 H9 117.231
C1 C5 C4 60.318 C1 C5 H10 117.722
C1 C5 H11 117.231 C2 C1 H3 114.385
C2 C1 C4 120.807 C2 C1 C5 120.807
C2 C6 H7 179.221 H3 C1 C4 115.324
H3 C1 C5 115.324 C4 C1 C5 59.364
C4 C5 H10 118.916 C4 C5 H11 118.070
C5 C4 H8 118.916 C5 C4 H9 118.070
H8 C4 H9 114.237 H10 C5 H11 114.237
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability