What makes acetylenic compounds unique in assembling their molecules

1 What Makes Acetylenic Compounds Unique in Assembling Their Molecules  

11 Building Blocks for High-Spin Molecules and Molecular Assemblies 

In the crystal of l,l,6,6-tetraphenyl-2,4-hexadiyne-l,6-diol and its analogs, solvents or third molecules are included in the vacant holes or channels made by the stacking host molecules [30]. These molecular spaces may include organic free radicals or open-shell organometallics in a specific orientation desirable for the ferromagnetic interaction. This possibility seems to be worthy of further exploration. 

2 A Guiding Principle on Aligning Electron Spins in Parallel between IWo Neighboring Molecules 

5-Hexatriyne Both Carrying Stable 4-Chloro-3-(AT-tert-butyl-JV-oxy-amino)phenyl Radical 

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