Японского сионизма вам в ленту!

[grihan]

http://elementy.ru/novosti_nauki/432928/Samosborkoy_polucheny_struktury_iz_144_molekulyarnykh_komponentov

(вступление - римейк моей старой записи про самосборку)

Comments

[shultz-flory.livejournal.com]

Впечатляет! А почему селен, а не сера? Как-то влияет на угол?

[grihanm.livejournal.com]

Ага - на угол

We observed this M30L60 framework when the experimental procedures
were carried out under conditions typical for targeting self-assembly
of standard MnL2n complexes, except that selenophene-cored
bipyridyl-type ligand 1 was used instead of an organic bipyridyl ligand.
The bend angle (θ) of ligand 1 is 152°, only 3° larger than that
of thiophene-cored ligand 2 (θ = 149°), which selectively assembles into
the M24L48 rhombicuboctahedron upon palladium(ii) coordination.
A small difference in the bend angles of two ligands can critically switch
the resultant self-assembled structure, as has been observed for the
M12L24-to-M24L48 transition at around θ = 131°–134°.