Addition of the primary phosphine tBuPH2 or the primary arsine tBuAsH2 to tBu3 M (M Ga, Al) followed by heating or photolysis affords the complexes [tBu2M(μ-E(tBu)H)]n, (1: M Ga, E P; n = 2; 2, M Al, E P, n = 2; 3, M Ga, E As, n = 3; 4, M Al, E As, n = 3). For each compound, the degree of association was assessed on the basis of 1H 31P, 13C NMR and mass spectroscope. The anti-isomer of 1 (1a) was also characterized by X-ray crystallography. Crystal data for 1a: C24H56Ga2P2, monoclinic, space group C2/m, a 17.124(7), b 11.755(7), c 8.700(3) Å, V 1561.94(15) Å3, Z = 4, Dcalc, 1.157 g cm-3, μ(Mo Kα) 18.3 cm-1. A total of 1501 unique reflections was measured over the range 3.0 ≤ 2σ ≤ 50.0° (σ-2σ scan mode) and 1263 of these with I > 3σ,(I) were used in the refinement to afford final R and Rw values of 0.059 and 0.070, respectively.
|Number of pages||7|
|Journal||Journal of Organometallic Chemistry|
|State||Published - May 4 1993|
Bibliographical noteFunding Information:
We are gratefult o the National ScienceF oundation (grantsC HE-9007166,C HE-9108228)a nd the Science and Technology Center Program (grant CHE-08920120)a, nd the Robert A. Welch Foundation for generousf inancial support.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry