Structural and Spectroscopic Characterization of Mer-[RhBr3(Me2pzH)3] (Me2pzH = 3, 5-Dimethylpyrazole); Interpreting the Results with Density Functional Theory Calculations

Mononuclear, hexanuclear and polymeric indium(iii) pyrazolido complexes; structural characterization, dynamic solution studies and luminescent properties

“…Mononuclear complexes containing monodentate pyrazoles are convenient starting materials for the synthesis of oligonuclear and polynuclear homometallic and heterometallic complexes upon deprotonation, turning the monodentate pyrazole (κ 1 -pz*H) into a bridging pyrazolate (μ,κ 2 -pz*) ligand (pz*H = substituted pyrazole, Scheme 1). Complexes of the form mer -[MX 3 (pz*H) 3 ] where M = Cr, Fe, Rh, and Re, X = Cl and Br, have previously been reported by us and others, 7,17–20 serving as starting materials for the synthesis of dinuclear and polynuclear complexes. 21–23…”

“…12,16 Mononuclear complexes containing monodentate pyrazoles are convenient starting materials for the synthesis of oligonuclear and polynuclear homometallic and heterometallic complexes upon deprotonation, turning the monodentate pyrazole (κ 1 -pz*H) into a bridging pyrazolate (µ,κ 2 -pz*) ligand ( pz*H = substituted pyrazole, Scheme 1). Complexes of the form mer-[MX 3 ( pz*H) 3 ] where M = Cr, Fe, Rh, and Re, X = Cl and Br, have previously been reported by us and others, 7,[17][18][19][20] serving as starting materials for the synthesis of dinuclear and polynuclear complexes. [21][22][23] Herein we report the synthesis, crystal structure, and dynamic solution 1 H-NMR behaviour of the first series of six mononuclear In III -pyrazole complexes, further used for the synthesis of three hexanuclear indium pyrazolate complexes, and series of four indium pyrazolato polymers.…”