return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Home > Geometry > Calculated > Calculated geometry OR Calculated > Geometry > Calculated geometry

Geometry for C5H4 (pentatetraene) 1A1 D2D

1910171554
InChI=1S/C5H4/c1-3-5-4-2/h1-2H2 INChIKey=UNSWNZFTRPSXHQ-UHFFFAOYSA-N

HF/3-21G*


Point group is D2d
Atom Internal Principal
x (Å) y (Å) z (Å)   a (Å) b (Å) c (Å)
C1 0.0000 0.0000 0.0000   0.0000 0.0000 0.0000
C2 0.0000 0.0000 1.2638   1.2638 0.0000 0.0000
C3 0.0000 0.0000 -1.2638   -1.2638 0.0000 0.0000
C4 0.0000 0.0000 2.5607   2.5607 0.0000 0.0000
C5 0.0000 0.0000 -2.5607   -2.5607 0.0000 0.0000
H6 0.0000 0.9178 3.1186   3.1186 0.8832 0.2496
H7 0.0000 -0.9178 3.1186   3.1186 -0.8832 -0.2496
H8 0.9178 0.0000 -3.1186   -3.1186 -0.2496 0.8832
H9 -0.9178 0.0000 -3.1186   -3.1186 0.2496 -0.8832
Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9
C1 1.2638 1.2638 2.5607 2.5607 3.2508 3.2508 3.2508 3.2508
C2 1.2638 2.5275 1.2969 3.8244 2.0694 2.0694 4.4774 4.4774
C3 1.2638 2.5275 3.8244 1.2969 4.4774 4.4774 2.0694 2.0694
C4 2.5607 1.2969 3.8244 5.1214 1.0740 1.0740 5.7529 5.7529
C5 2.5607 3.8244 1.2969 5.1214 5.7529 5.7529 1.0740 1.0740
H6 3.2508 2.0694 4.4774 1.0740 5.7529 1.8355 6.3707 6.3707
H7 3.2508 2.0694 4.4774 1.0740 5.7529 1.8355 6.3707 6.3707
H8 3.2508 4.4774 2.0694 5.7529 1.0740 6.3707 6.3707 1.8355
H9 3.2508 4.4774 2.0694 5.7529 1.0740 6.3707 6.3707 1.8355
Maximum atom distance is 6.3707Å between atoms H6 and H8.
picture of pentatetraene
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 180.000
C2 C1 C3 180.000
Calculated Bond Angles (degrees) (Involving Hydrogens)
atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C2 C4 H6 121.293 C2 C4 H7 121.293
C3 C5 H8 121.293 C3 C5 H9 121.293
H6 C4 H7 117.414 H8 C5 H9 117.414

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