Transition‐Metal‐Substituted Volatile Alanes, Gallanes, and Indanes: Synthesis and Structure

Abstract

The instability and tendency to disproportionate of organometallic compounds of Group 13 metal‐d‐metal complexes were countered by adjusting the donor/acceptor properties of the metal centers. Now nothing prevents the use of this class of compounds in layering processes or the development of its chemistry. A large number of alanes, gallanes, and indanes related to 1 (M  Fe, L  Cp, n  2) that are volatile without decomposition were prepared.

Bimetallic Fe/Ga thin films from single sources; molecular control of the thin film stoichiometry

“…This contrasts with the behavior of the related Co-Ga and Mn-Ga precursors (CO),M-Ga[(CH,),NMe,](R) (R = Et, 'Bu; M = Mn, n = 5 ; M = Co, n = 4) which contain the same organogallium fragment as l. [3,61 Apparently, the cyclopentadienyl substituted transition metal fragment stabilizes the compound considerably. Most of this precursor (~9 5 % ) was collected unchanged in the cold trap.…”

BH Bond Activation of Trimethylphosphineborane by Transition Metal Complexes: Synthesis of Metal Complexes Bearing Nonsubstituted Boryl−Trimethylphosphine, Cp*M(CO)3(BH2·PMe3) (M = Mo, W)

“…Thus, the M−B bond in these boryl complexes has a character like a contact ion pair composed of a cation [BH 2 ·PMe 3 ] + and an anion [M(CO) 3 Cp*] - . , This notion is consistent with the long metal-boron distances in 2a and 3a . Fischer and co-workers have reported gallyl or indylmetal complexes with a highly polar metal−gallium or metal−indium bond . The group 13 elements in these compounds adopt a tetra-coordinate configuration with an amine ligand.…”

Synthesis of the Sterically Related Nickel Gallanediyl Complexes [Ni(CO)3(GaAr′)] (Ar′ = C6H3-2,6-(C6H3-2,6-iPr2)2) and [Ni(CO)3(GaL)] (L = HC[C(CH3)N(C6H3-2,6-iPr2)]2): Thermal Decomposition of [Ni(CO)3(GaAr′)] to give the Cluster [Ni4(CO)7(GaAr′)3]

“…Such species are of interest not only from a fundamental structure/bonding perspective [20,21], but also from the viewpoint of potential applications of this class of compounds (e.g. in the chemical synthesis of intermetallic nanomaterials) [22][23][24]. We have shown that low coordination Ga(I) species containing bulky aryl ligands Ar 0 GaGaAr 0 (Ar 0 = C 6 H 3 -2,6-(Dipp) 2 ) or GaL (L = HC[C(Me)N(Dipp)] 2 , Dipp = 2,6-iPr 2 C 6 H 3 ) are monomeric in solution and exhibit Lewis base behavior toward iron carbonyl to give monomeric Ar 0 GaFe(CO) 4 or LGaFe(CO) 4 complexes [25][26][27].…”