Synthesis and structural characterization of the platinum complex, cis-[(Cy2PCH2CH2PCy2)(NP)PtGa(NP)2 (Cy = cyclohexyl; NP = neopentyl)

Abstract

Supplementary Material Available: Tables of crystal structure data collection and refinement parameters (Table SI) and final atom positional parameters (Table S2) for dm-(BEDO-TTF)3Cu2(NCS)3 (3 pages). Ordering information is given on any current masthead page. is also the case for /Sm-(BEDO-TTF)3Cu2(NCS)3, then crystals varying from single domain to those with a high density of stacking faults would produce varying intensities for the (A, k, / ± '/3)

The reaction of the group-13 alkyls ER3 (E=Al, Ga, In; R=CH2t-Bu, CH2 SiMe3) with the platinum-complex [(dcpe)Pt(H)(CH2t-Bu)]

“…The comparison of the calculated interatomic distances and angles (Table 6) shows that the structural data of 1M are in reasonable agreement with the observed values for complex 1 [1]. The angular sums around the Pt-and the Ga centre of 1M amount to exactly 360°each, so that the metal centres are both coordinated in a perfect plane mode.…”

“…3, Table 4) crystallizes as yellow rhombs (5) in the triclinic space group P ( Table 2). The molecular structures of 3 and 5 are as expected and quite comparable to the structures of the homologous complexes {(dcpe)Pt[Ga(CH 2 t-Bu) 2 ](CH 2 tBu)} (1) and {(dcpe)Pt[In(CH 2 SiMe 3 ) 2 ] (CH 2 SiMe 3 )} (2) [1,2]. They are derived from the basic square planar structure of the starting compound [(dcpe)Pt(H)(CH 2 tBu)] by a exchange of the neopentyl and hydride ligands by the ER 2 and R units.…”

“…Structural data of the first bimetallic complexes with direct covalent r (Pt-Ga) and r (Pt-In) bonds, [(dcpe)Pt{Ga(CH 2 t-Bu) 2 }(CH 2 t-Bu)] (1) and [(dcpe)Pt{In(CH 2 SiMe 3 ) 2 }(CH 2 SiMe 3 )] (2), respectively, have been reported as preliminary short communications by Fischer et al [1,2] more than a decade ago. The original motivation of these studies arose from the idea to use such mixed metal compounds as ''single-source'' precursors for intermetallic materials predominantly using Metal Organic Vapor Deposition [3,4].…”

Coordination Chemistry of Aluminum, Gallium, and Indium at Transition Metals

“…Np neopentyl. [51] A survey of CO-free complexes is given in Table 1. Aluminum centers that are not shielded by sterically demanding groups or by base-adduct formation in the case of metal carbonyl fragments tend to form isocarbonyl structures M-CO-Al.…”

“…(7)]. [51,54] Upon heating, the Pt complex slowly releases neopentane in a controlled manner in a first-order reaction. The reactive fragment thus formed, [cis-(L) 2 Pt], then is available for a series of subsequent reactions.…”