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Point Group Symmetry

By Ngage
Perfect for teaching and studying, fun for playing, cool for decorating!
About
Check out these models of 42 point groups of symmetry. The models are represented by molecules, which belong to 32 crystallographic and 10 noncrystallographic point groups. You can get one of the four preassembled sets with one click or select desired items individually.

If you are teaching or studying symmetry – you are on the right page! There is no better way of getting in touch with chemistry and symmetry than to hold the molecules in your hands! Perfect for presentation and examination in a classroom. Provides vivid demonstration of differences between crystallographic and noncrystallographic point groups. Can be used for communicating science or as toys for children. Some molecules can be used as keychains or for decoration.

Some models represent molecules with untouched geometry obtained via the X-ray experiment, while other models are idealized or adapted for a clear representation of their symmetry. Still, all the molecules are real except for the one point group ‘I’ – the snub dodecahedron is provided instead. As chemical elements are indistinguishable in the models, they are picked so that the symmetry assigned based on geometry itself matches the real symmetry of the molecules. In several cases, multiple bonds and aromaticity are not shown to maintain correct symmetry. Some point groups are very rare and the corresponding molecules are big and, thus, more expensive than the others.

If you have any ideas of improving the set – please, send me a message! Any feedback is appreciated!

Scale of all models: 7 mm/Å

Point group symbols in Schoenflies and Hermann–Mauguin notations and chemical names of molecules are provided below.

#1 C1 1 bromofluoroacetic acid
#2 Ci ≡ S2 -1 N,N′-(1,2-ethanediyl)bis(acetamide)
#3 C2 2 dibromo-octamethyl-biphenyl
#4 Cs m phenanthro(9,10-c)-1,2,5-thiadiazole-1-oxide
#5 C2h 2/m tetra-aqua-bis(9-methyladenine)-copper(II)
#6 D2 222 trans-bis(ethylenediamine)-dichloro-cobalt(III)
#7 C2v mm2 1,2-dibromobenzene
#8 D2h mmm naphtalene
#9 C4 4 tetrakis(μ2-cyclohexane-carbodithioato-S,S')-di-platinum(II)
#10 S4 ≡ C4i -4 1,3,5,7-tetramethyl-cyclo-octa-cis,cis,cis,cis-1,3,5,7-tetraene
#11 C4h 4/m tetraazidocopper(II)
#12 D4 422 tetrathiacyclododecane
#13 C4v 4mm pentaborane(9)
#14 D2d -42m trans-dinitrato-tetrachloro-cerium(IV)
#15 D4h 4/mmm octachloro-di-rhenium
#16 C3 3 triphenylphosphine
#17 C3i ≡ S6 -3 hexakis(thiourea)bismuth(III)
#18 D3 32 tris(ethylenediamine)-cobalt(III)
#19 C3v 3m triquinacene
#20 D3d -3m 4,4′-di-iodobicubyl
#21 C6 6 alpha-cyclodextrin
#22 C3h -6 triimidazo-triazine
#23 C6h 6/m (1,2,3,4,5,6)cyclophane
#24 D6 622 hexanitrobenzene
#25 C6v 6mm (η6-hexamethylbenzene)-gallium(I)
#26 D3h -62m cyclopropane
#27 D6h 6/mmm benzene
#28 T 23 hexakis(tetrahydrofuran)-calcium
#29 Th m-3 hexa-aqua-cobalt(II)
#30 O 432 [V6P8O30] core in octakis(μ3-t-butylphosphonato)-hexaoxo-penta-vanadium(V)-vanadium(IV)
#31 Td -43m adamantane
#32 Oh m-3m cubane
#33 D4d -82m sulfur S8
#34 C5 5 1,2,3,4,5-pentamethyl-1’,2’,3’,4’,5’-pentaphosphaferrocene
#35 C5v 5m nitrosyl-(pentamethyl-cyclopentadienyl)-nickel
#36 C5h -10 pentamethyl­cyclopentadienyl
#37 D5 52 trans-bis(iodo)-pentakis(tetrahydrofuran-O)-ytterbium(III)
#38 D5d -5m ferrocene (staggered)
#39 D5h -10m2 ruthenocene (eclipsed)
#40 D6d -122m bis(η6-benzene)-chromium(I) (staggered)
#41 I 235 snub dodecahedron
#42 Ih m-3-5 buckminsterfullerene
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