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Computational Chemistry Comparison and Benchmark DataBase
Release 22 (May 2022) Standard Reference Database 101
National Institute of Standards and Technology
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You are here: Home > Geometry > Calculated > Calculated geometry OR Calculated > Geometry > Calculated geometry
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Geometry for C5H8 (1-pentyne)
1A' CS
1910171554
InChI=1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3 INChIKey=IBXNCJKFFQIKKY-UHFFFAOYSA-N
QCISD/6-31G*
Point group is Cs
| Atom |
Internal |
|
Principal |
| x (Å) |
y (Å) |
z (Å) |
|
a (Å) |
b (Å) |
c (Å) |
| C1 |
2.6533 |
0.2180 |
0.0000 |
|
2.6499 |
-0.2558 |
0.0000 |
| C2 |
1.4555 |
0.4157 |
0.0000 |
|
1.5062 |
0.1511 |
0.0000 |
| C3 |
0.0000 |
0.6383 |
0.0000 |
|
0.1132 |
0.6282 |
0.0000 |
| C4 |
-0.8023 |
-0.6725 |
0.0000 |
|
-0.9088 |
-0.5197 |
0.0000 |
| C5 |
-2.3107 |
-0.4206 |
0.0000 |
|
-2.3486 |
-0.0043 |
0.0000 |
| H6 |
3.7081 |
0.0458 |
0.0000 |
|
3.6575 |
-0.6123 |
0.0000 |
| H7 |
-0.2740 |
1.2376 |
0.8803 |
|
-0.0502 |
1.2666 |
0.8803 |
| H8 |
-0.2740 |
1.2376 |
-0.8803 |
|
-0.0502 |
1.2666 |
-0.8803 |
| H9 |
-0.5182 |
-1.2646 |
0.8803 |
|
-0.7342 |
-1.1527 |
0.8803 |
| H10 |
-0.5182 |
-1.2646 |
-0.8803 |
|
-0.7342 |
-1.1527 |
-0.8803 |
| H11 |
-2.8687 |
-1.3649 |
0.0000 |
|
-3.0652 |
-0.8347 |
0.0000 |
| H12 |
-2.6151 |
0.1500 |
0.8872 |
|
-2.5471 |
0.6112 |
0.8872 |
| H13 |
-2.6151 |
0.1500 |
-0.8872 |
|
-2.5471 |
0.6112 |
-0.8872 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
C3 |
C4 |
C5 |
H6 |
H7 |
H8 |
H9 |
H10 |
H11 |
H12 |
H13 |
| C1 |
|
1.2139 |
2.6864 |
3.5685 |
5.0049 |
1.0688 |
3.2224 |
3.2224 |
3.6099 |
3.6099 |
5.7444 |
5.3430 |
5.3430 |
| C2 |
1.2139 |
|
1.4725 |
2.5064 |
3.8580 |
2.2828 |
2.1076 |
2.1076 |
2.7375 |
2.7375 |
4.6765 |
4.1747 |
4.1747 |
| C3 |
2.6864 |
1.4725 |
|
1.5368 |
2.5418 |
3.7552 |
1.0997 |
1.0997 |
2.1597 |
2.1597 |
3.4988 |
2.8044 |
2.8044 |
| C4 |
3.5685 |
2.5064 |
1.5368 |
|
1.5293 |
4.5673 |
2.1686 |
2.1686 |
1.0983 |
1.0983 |
2.1793 |
2.1795 |
2.1795 |
| C5 |
5.0049 |
3.8580 |
2.5418 |
1.5293 |
| 6.0369 |
2.7700 |
2.7700 |
2.1680 |
2.1680 |
1.0968 |
1.0979 |
1.0979 |
| H6 |
1.0688 |
2.2828 |
3.7552 |
4.5673 |
6.0369 |
| 4.2489 |
4.2489 |
4.5116 |
4.5116 |
6.7264 |
6.3860 |
6.3860 |
| H7 |
3.2224 |
2.1076 |
1.0997 |
2.1686 |
2.7700 |
4.2489 |
| 1.7607 |
2.5141 |
3.0693 |
3.7789 |
2.5814 |
3.1286 |
| H8 |
3.2224 |
2.1076 |
1.0997 |
2.1686 |
2.7700 |
4.2489 |
1.7607 |
| 3.0693 |
2.5141 |
3.7789 |
3.1286 |
2.5814 |
| H9 |
3.6099 |
2.7375 |
2.1597 |
1.0983 |
2.1680 |
4.5116 |
2.5141 |
3.0693 |
| 1.7606 |
2.5119 |
2.5294 |
3.0858 |
| H10 |
3.6099 |
2.7375 |
2.1597 |
1.0983 |
2.1680 |
4.5116 |
3.0693 |
2.5141 |
1.7606 |
| 2.5119 |
3.0858 |
2.5294 |
| H11 |
5.7444 |
4.6765 |
3.4988 |
2.1793 |
1.0968 |
6.7264 |
3.7789 |
3.7789 |
2.5119 |
2.5119 |
| 1.7738 |
1.7738 |
| H12 |
5.3430 |
4.1747 |
2.8044 |
2.1795 |
1.0979 |
6.3860 |
2.5814 |
3.1286 |
2.5294 |
3.0858 |
1.7738 |
| 1.7744 |
| H13 |
5.3430 |
4.1747 |
2.8044 |
2.1795 |
1.0979 |
6.3860 |
3.1286 |
2.5814 |
3.0858 |
2.5294 |
1.7738 |
1.7744 |
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Maximum atom distance is 6.7264Å
between atoms H6 and H11.
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C1 |
C2 |
C3 |
179.325 |
|
C2 |
C3 |
C4 |
112.775 |
|
C3 |
C4 |
C5 |
111.988 |
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Calculated Bond Angles (degrees) (Involving Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C2 |
C1 |
H6 |
179.902 |
|
C2 |
C3 |
H7 |
109.189 |
|
C2 |
C3 |
H8 |
109.189 |
|
C3 |
C4 |
H9 |
108.950 |
|
C3 |
C4 |
H10 |
108.950 |
|
C4 |
C3 |
H7 |
109.561 |
|
C4 |
C3 |
H8 |
109.561 |
|
C4 |
C5 |
H11 |
111.100 |
|
C4 |
C5 |
H12 |
111.045 |
|
C4 |
C5 |
H13 |
111.045 |
|
C5 |
C4 |
H9 |
110.117 |
|
C5 |
C4 |
H10 |
110.117 |
|
H7 |
C3 |
H8 |
106.361 |
|
H9 |
C4 |
H10 |
106.558 |
|
H11 |
C5 |
H12 |
107.841 |
|
H11 |
C5 |
H13 |
107.841 |
|
H12 |
C5 |
H13 |
107.817 |
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For information on specific bond angles or dihedrals
see the geometry comparison page in section
Comparisons > Geometry > Bonds, angles.