A comparison of non-covalent interactions in the crystal structures of two σ-alkane complexes of Rh exhibiting contrasting stabilities in the solid state

Abstract

Non-covalent interactions surrounding the cationic Rh σ-alkane complexes within the crystal structures of [(Cy2PCH2CH2PCy2)Rh(NBA)][BArF4], [1-NBA][BArF4] (NBA = norbornane, C7H12; ArF = 3,5-(CF3)2-C6H3), and [1-propane][BArF4] are analysed using Quantum Theory of...

A Gold(I)–Acetylene Complex Synthesised using Single‐Crystal Reactivity

“…In crystallo [12] solid‐state molecular organometallic chemistry (SMOM) [13] has emerged as a powerful methodology to access solution‐unstable organometallic species by single‐crystal to single‐crystal (SC‐SC) reactivity, for example cationic group 9 σ‐alkane complexes [14] . For such cationic species, the periodic arrangement of [BAr F 4 ] − anions in the lattice has been shown to provide a well‐defined microenvironment where non‐covalent interactions provide stabilization, [15] while substrate‐accessible hydrophobic channels allow for solid/gas reactivity [16] . Given the solution‐based substitution chemistry noted above to generate 3[BAr F 4 ] we hypothesized that solid/gas SC‐SC reactivity could be used to isolate this gold(I) acetylene complex in a pure form without the decomposition observed using solution routes.…”