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Side-on coordination of boryl and borylene complexes to cationic coinage metal fragments.

ABSTRACT: The M-(?2-BMn) complex [(?5-C5H5)(OC)2Mn{?-B(Cl)(tBu)Au(PPh3)}] (2) can be functionalized via halide substitution reactions to afford isostructural complexes [(?5-C5H5)(OC)2Mn{?-B(R)(tBu)Au(PPh3)}] (R = Ph, CCPh and NCS). It also reacts with coinage metal complexes [MCl(PPh3)] (M = Au, Ag and Cu) in the presence of halide abstraction reagents to afford borylene-bridged heteromultinuclear complexes [{(?5-C5H5)(OC)2Mn}2{?2-B(tBu)}2M][BArx4] (M = Au, Ag and Cu; Arx = 3,5-C6H3Cl2, 3,5-C6H3(CF3)2). Experimental characterization as well as computational studies revealed that these complexes are best viewed as transition metal borylene complexes side-on coordinated to monovalent coinage metal cations, thus representing the first boron analogs of Stone's alkylidyne-bridged multinuclear complexes.

SUBMITTER: Braunschweig H

PROVIDER: S-EPMC5729409 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Side-on coordination of boryl and borylene complexes to cationic coinage metal fragments.

Braunschweig Holger H Radacki Krzysztof K Shang Rong R

Chemical science 20150310 5

The M-(η2-BMn) complex [(η5-C5H5)(OC)2Mn{μ-B(Cl)(tBu)Au(PPh3)}] (2) can be functionalized via halide substitution reactions to afford isostructural complexes [(η5-C5H5)(OC)2Mn{μ-B(R)(tBu)Au(PPh3)}] (R = Ph, CCPh and NCS). It also reacts with coinage metal complexes [MCl(PPh3)] (M = Au, Ag and Cu) in the presence of halide abstraction reag ...[more]

PMID: 29403636

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