The first hexagonal octadecanuclear Ag macrocycle [Ag(18)(TTTMB)(12)](NO(3))(18)·30H(2)O has been hydrothermally synthesized. The outside and inner diameters of the unprecedented architecture are about 27.72(13) Å and 15.37(7) Å, respectively. This complex displays a huge increase in the intensity and lifetime of phosphorescence with decreasing temperature.

Reaction of a flexible tripodal ligand, 1,3,5-tris(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene (tttmb), and an organometallic carboxylate 1,1Ј-bis(3-carboxy-1-oxopropyl)ferrocene (H 2 bfcs) with Cd(Ac) 2 ·2H 2 O yields a trinodal, self-catenated 3D layer pillar complex {[Cd 3 (bfcs) 3 (tttmb) 2 (H 2 O) 4 ]· 8H 2 O} n (1), which is formed by connecting 2D hexagonal Cd II -tttmb Borromean layers through ferrocenyl bridges in

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