From nano-balls to nano-bowls

Abstract

Depending on the reaction conditions, either guest or host truncation is observed upon self-assembly of [Cp*Fe(η5-P5)], [(CpCr)2(η5-As5)] and copper halides.

Structural Chemistry of Giant Metal Based Supramolecules

“…356 The usage of synchrotron radiation (P11 beamline at DESY PETRA III, Germany) significantly improved the resolution for [{Cp Bn Fe-(η 5 -P 5 )} 12 (CuOTf) 20 ] 456 and the host−guest compound [(CpCr) 2 As 5 ]@[(Cp*FeP 5 ) 11 (CuBr) 14.55 ] (Figure 64). 347 Despite the fact that even charge-density structures of proteins resolution emerged recently, 489,490 we could find only one example of diffraction data for a giant cluster measured up to a subatomic resolution of 0.5 Å (Table 17). It was done at the beamline C at the DORIS III synchrotron (DESY, Germany) for the unique metalloid cluster with the {Ga 84 } core (section 2.4.1 and Figure 4d).…”

“…The resulting supramolecule encapsulates the [(CpCr) 2 (η 5 :η 5 -As 5 )] guest molecule protruding from the open rim (Figure 64c,d). 347 Remarkably, the "nanobowl" supramolecule is additionally metal-deficient: One or two out of 15 CuHal fragments are statistically absent.…”

The Potential of Molybdenum Complexes Bearing Unsubstituted Heterodiatomic Group 15 Elements as Linkers in Supramolecular Chemistry

“…[4] For that reason, our group developed the concept of using organometallic complexes bearing "naked" polyphosphorus (P n )d onor atoms as connectors between metal ions. [5] These compounds possess very flexible coordination modes,w hich allow the synthesis of al arge library of discrete (monomers, [6b,c] dimers, [6a,b,d] spherical aggregates, [7] nanobowls, [8] and nanosized capsules [9] )a nd polymeric (1D,2 D, and 3D coordination polymers (CPs)) [6a, 10] supramolecular assemblies in moderate to excellent yields.Interestingly,few of these P n compounds could be further involved in three-component reactions together with Ag I or Cu I salts and ditopic N-donor organic molecules to afford unprecedented organometallicorganic hybrid polymers. [11] In contrast to the rather large number of assemblies based on P n -ligand complexes,f ew aggregates have been reported by ourselves and others featuring As n - [12] and Sb n -ligand complexes, [13] respectively, as building blocks.T hese E n -ligand complexes show coordination behaviors towards metal ions that differ from that of their P n -ligand analogues,paving the way for new advances in the supramolecular chemistry of softer Lewis bases.…”

The Potential of the Diarsene Complex [(C5H5)2Mo2(CO)4(μ,η2‐As2)] as a Connector Between Silver Ions

“…Due to the lack of such compounds, our group developed the concept of using organometallic polyphosphorus (P n ) ligand complexes with flexible coordination modes as connectors between metal ions [6] . This new approach allowed for the synthesis of a large variety of unprecedented supramolecular aggregates including 1D, 2D, and 3D coordination polymers (CPs), [7] inorganic nanospheres, [8] nanosized bowls [9] and capsules [10] . One of the simplest of such P n compounds is the diphosphorus complex [Cp 2 Mo 2 (CO) 4 (μ,η 2 ‐P 2 ) ( A ) (Cp=η 5 ‐C 5 H 5 ) [11] .…”