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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
Maximum atom distance is 6.7264Å between atoms H6 and H11.
picture of 1-pentyne
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
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

For information on specific bond angles or dihedrals see the geometry comparison page in section Comparisons > Geometry > Bonds, angles.