879329-55-2

Upstream product

• 334719-92-5 Dipp₂nacnacLi*Et₂O 
• 13450-88-9 gallium(III) bromide 
• 317322-17-1 [Ga(2-((2,6-diisoproylphenyl)amino)-4-((2,6-diisopropylphenyl)imino)-2-pentene)] 
• 7789-61-9 antimony(III) bromide 
• 7784-33-0 arsenic(III) bromide 

Relevant academic research and scientific papers

A silicon–carbonyl complex stable at room temperature

Main-group-element compounds with energetically high-lying donor and low-lying acceptor orbitals are able to mimic chemical bonding motifs and reactivity patterns known in transition metal chemistry, including small-molecule activation and catalytic reactions. Monovalent group 13 compounds and divalent group 14 compounds, particularly silylenes, have been shown to be excellent candidates for this purpose. However, one of the most common reactions of transition metal complexes, the direct reaction with carbon monoxide and formation of room-temperature isolable carbonyl complexes, is virtually unknown in main-group-element chemistry. Here, we show the synthesis, single-crystal X-ray structure, and density functional theory computations of a room-temperature-stable silylene carbonyl complex [L(Br)Ga]2Si:–CO (L = HC[C(Me)N(2,6-iPr2-C6H3)]2), which was obtained by direct carbonylation of the electron-rich silylene intermediate [L(Br)Ga]2Si:. Furthermore, [L(Br)Ga]2Si:–CO reacts with H2 and PBr3 with bond activation, whereas the reaction with cyclohexyl isocyanide proceeds with CO substitution. [Figure not available: see fulltext.]

Synthesis and structures of gallaarsenes LGaAsGa(X)L featuring a Ga-As double bond

Three equivalents of LGa {L = HC[C(Me)N(2,6-i-Pr2C6H3)]2} react with AsX3 (X = Cl, Br) by insertion into two As-X bonds, followed by the elimination of LGaX2 and formation of LGaAsGa(Cl)L (1) and LGaAsGa(Br)L (2). According to single crystal X-ray analysis, 1 and 2 each exhibit one Ga-As single bond and one Ga-As double bond. The π-bonding contribution (9.71 kcal mol-11 and 9.44 kcal mol-12) was proved by variable temperature (VT) 1H NMR spectroscopy, while the electronic structure of 1′ was studied by quantum chemical calculations.

Synthesis and X-ray Crystal Structures of Ga-substituted Distibenes [L(X)GaSb]2

The reactions of two equivalents of LGa {L = HC[C(Me)N(2,6-iPr2C6H3)]2} with SbX3 (X = Br, I, OEt) proceed with elimination of LGaX2 and formation of Ga-substituted distibenes [L(X)GaSb]su

Syntheses, characterization, and X-ray crystal structures of β-diketiminate group 13 hydrides, chlorides, and fluorides

A series of organometallic compounds of group 13 metals supported by the sterically encumbered β-diketiminate ligand containing hydrides, fluorides, chlorides, and bromide have been synthesized and structurally characterized. The synthetic strategy applie