The interfacial structures of trans-stilbene (TSB) on Ag/Ge(111)-( 3 × 3)R30°were studied by lowtemperature scanning tunneling microscopy (LT-STM) in ultrahigh vacuum (UHV). Stilbene overlayers were prepared by vapor deposition at a substrate temperature of 200 K and imaged after the samples were cooled to 100 K. High-resolution images allow the identification of individual molecules, with TSB appearing with a distinctive dumbbell shape. From in situ observation of the substrate lattice, the TSB monolayers were found to form a (2 × 1) structure. Due to the excellent matching of unit cell length for Ag/Ge( 111)-( 3 × 3)R30°to the molecular length of TSB, the interaction between TSB and the substrate surface plays the controlling role in influencing the structure of the TSB overlayers. A model for the unit cell of TSB monolayers is proposed and discussed.

A triangular metalloprism, [((CO)3Re(mu-2)Re(CO)3)3(mu3-1)2], self-assembled from Re2(CO)10, 2,4,6-tri-4-pyridyl-1,3,5-triazine (tpt, 1), and indigo (H2(2)), represents a fairly novel example of strong face-to-face pi-pi interactions between the central triazine rings of the tpt ligands that bow significantly inward distorting the prismatic structure.

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The self-assembly of rhenium-based rectangular boxes with a large inner cavity can be achieved via a simple one-step synthetic route; these molecules selectively recognize planar aromatic molecules, benzene in particular.

A huge diamondoid framework with edge distances of the adamantane cages of up to 25.95 Å, is reported. This MOF displays a tenfold interpenetration, which is constructed from bulky and elongated aromatic-rigid dicarboxylate scaffolds, exhibits a self-catenated net with a point symbol of {(62.84)(64.8.10)2}.

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