Synthesis and Reactivity of Multiple Phosphine-Functionalized Nonagermanide Clusters

Angewandte Chemie
Felix S GeitnerThomas F Fässler

Abstract

Herein we report on the synthesis of the first multiple phosphine-substituted nonagermanide clusters in a one-step reaction from K4 Ge9 . Their reactions towards various transition metal complexes show a large variety of reactive sites. The novel threefold phosphine-functionalized [Ge9 ] clusters [Ge9 {PRRI }3 ]- {R: Ni Pr2 ; RI : Ni Pr2 (1 a) or t Bu (2 a)} are obtained by reaction of pristine [Ge9 ]4- clusters with the respective chlorophosphines. Subsequent reactions with NHCDipp CuCl yield neutral compounds (NHCDipp Cu)[Ge9 {P(Ni Pr2 )2 }3 ] (3) and (NHCDipp Cu)[Ge9 {P(Ni Pr2 )t Bu}3 ] (4), respectively. The reaction of neutral compound 3 with Cr(CO)5 (thf) yields the first uncharged fivefold substituted [Ge9 ] cluster (NHCDipp Cu)2 [Ge9 {P(Ni Pr2 )2 }2 Cr(CO)5 ] (5) via a ligand exchange reaction at the [Ge9 ] cluster core. Compounds 3 and 5 are characterized by single crystal structure determination.

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Citations

Oct 18, 2018·Chemical Communications : Chem Comm·Thomas HennebergerThomas F Fässler
Jan 12, 2019·Angewandte Chemie·Kinga I LeszczyńskaDavid Scheschkewitz
Jun 25, 2019·Chemistry : a European Journal·Christoph WallachThomas F Fässler
Aug 7, 2019·Chemical Communications : Chem Comm·Lukas KlemmerDavid Scheschkewitz
Feb 25, 2020·Angewandte Chemie·Nadine E PoitiersDavid Scheschkewitz
May 5, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·C WallachT F Fässler
Jul 12, 2019·Chemical Science·Nikolay V Tkachenko, Alexander I Boldyrev
Sep 2, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Joschua HelmerFelicitas Lips
Jul 28, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Nadine C MichenfelderAndreas-Neil Unterreiner
Oct 6, 2020·Inorganic Chemistry·Felix S Geitner, Thomas F Fässler
Sep 14, 2021·Inorganic Chemistry·Tanja KunzAndreas Schnepf

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