Synthesis and pyrolysis studies of [(t-Bu)[sub 2]GaPR[sub 2]][sub x]

Journal Article · Wed Nov 10 04:00:00 EST 1993 · Inorganic Chemistry; (United States)

DOI:https://doi.org/10.1021/ic00075a071· OSTI ID:5077903

Naiini, A A; Han, Y; Akinc, M; Verkade, J G ^[1]

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1. Iowa State Univ., Ames, IA (United States)

Although the search for an infrared window material with high durability and multispectral capability has been in progress for over three decades, results have not been satisfactory. Zinc sulfide and zinc selenide are currently being used as compromise materials, especially for large-size hardware, aboard high-speed aircraft or infrared-guided missiles. Major disadvantages of zinc sulfide are its low durability and weak resistance to rain impact. Spherical, monodispersed, submicron zinc sulfide powders were recently prepared by homogeneous precipitation. In order to improve the mechanical properties of zinc sulfide as an infrared window material, it was decided to impregnate ZnS powder with gallium phosphide. GaP was chosen because the GaP lattice matches that of ZnS, which may prevent microcrack formation in the densified ceramic object and it has a higher resistance to rain. To impregnate ZnS, it would seem desirable to have the precursor in either a liquid or a solution form and to generate a precursor that contains Ga and P in a 1:1 ratio. The authors report the preparation and characterization of [(t-Bu)[sub 2]GaP(i-Pr)[sub 2]][sub 2] (1) and (t-Bu)[sub 2]GaP(t-Bu)[sub 2] (2). While this work was in progress, these compounds were described by Higa et al. in the abstracts of a recent meeting. The authors also describe a mechanism for the pyrolysis of 1 to GaP which contrasts that reported earlier for the pyrolysis of the analogue (t-Bu)[sub 2]GaAs(t-Bu)[sub 2].

• OSTI ID: 5077903
• Journal Information: Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 32:23; ISSN 0020-1669; ISSN INOCAJ
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
ABSORPTION SPECTROSCOPY
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DECOMPOSITION
GALLIUM COMPOUNDS
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
PHOSPHINES
PHOSPHORUS COMPOUNDS
PYROLYSIS
RESONANCE
SPECTROSCOPY
STOICHIOMETRY
SYNTHESIS
THERMOCHEMICAL PROCESSES