Hydrides trihydrides

Bis-[pentafluor-phenyl]- -dibromid 486 Bis-[pentafIuor-phenyl]- -dihydrid 486 Dicblor-dipbenyl- 702 Diphenyl- 702 Propyl- -trichlorid 486 Propyl- -trihydrid 486 Tris-[pentafluor-phenyI]- -bromid 486 Tris-[pentafluor-phenyI]- -hydrid 486... 

Tin-tin bonds are usually best prepared by reducing an Sn-0 or Sn-N bonded compound with a tin hydride. For example, trimethyl (diethylamino)tin is reduced by alkyltin trihydrides to give decaorganotetratins (256). 

Synonyms arsenic trihydride hydrogen arsenide arsenious trihydride arsenic hydride arsenic hydrid arsineuretted hydrogen Budavari et al. 1989 ... 

Aresenwasserstoff Argentinean Hemorrhagic Fever Arsenic Butter Arsenic Chloride Arsenic Dichloroethane Arsenic Hydride Arsenic Oxide Arsenic Sodium Oxide Arsenic Trichloride Arsenic Trihydride Arsenic Trioxide Arsenic(3+) Chloride... 

Bromogermane, 0246 Cadmium hydride, 3953 Caesium hydride, 4258 Calcium hydride, 3927 Cerium dihydride, 3962 Cerium trihydride, 3963... 

Compact (bulk) plutonium hydride (Puj s to PuH2,65) has been obtained by hydriding under pressure a-Pu in the plastic range (350-400 °C). Protactinium trihydride is less stable than uranium trihydride ... 

The electrosynthesis of hydride complexes directly from molecular hydrogen at atmospheric pressure by reduction of Mo(II) and W(II) tertiary phosphine precursors in moderate yield has been described as also the electrosynthesis of trihydride complexes of these metals by reduction of M(IV) dihydride precursors [101,102]. Hydrogen evolution at the active site of molybdenum nitrogenases [103] is intimately linked with biological nitrogen fixation and the electrochemistry of certain well-defined mononuclear molybdenum and tungsten hydrido species has been discussed in this context [104,105]. 

ARSINE AND DERIVATIVES Arsine (Hydrogen Arsenide Arseniuretted Hydrogen Arsenic Hydride or Trihydride) (Arsenwasserstoff in Ger), AsIJ3, mw 77.93 coi gas with offensive odor resembling that of garlic sp gr 2.695 (Air = 1.0) fr p 113.5° ... 

In all these cases, hydride formation corresponds to partial occupation of the available holes, reminiscent of multihole polyhedra behavior. Occupation of all available holes would require a limiting stoichiometry MH3, and would correspond to occupation of the unique hole in isolated polyhedra. This situation is known for some rare earth hydrides (see Table III). Significantly, transformation of the metallic dihydride to the trihydride occurs with a decrease in apparent metal-metal distances and with a large increase in resistivity. These observations indicate a salt-like character and the disappearance of metal-metal bonds (27). 

Treatment of [Hf(BH4)3 N(SiMe2CH2PMe2)2 ] with Lewis bases (NEt3 or PMe3) yields the dinuclear trihydride [ Hf[N(SiMe2CH2PMe2)2] 2(H)3(BH4)3]. This complex is fiuxional JH and selectively decoupled 31P NMR spectra show the presence of three equivalent hydrides coupled to four equivalent phosphorus nuclei.140... 

Donor adducts of aluminum and gallium trihydride were the subject of considerable interest in the late 1960s and early 1970s.1 Thin-film deposition and microelectronic device fabrication has been the driving force for the recent resurgence of synthetic and theoretical interest in these adducts of alane and gallane.24 This is directly attributable to their utility as low-temperature, relatively stable precursors for both conventional and laser-assisted CVD,59 and has resulted in the commercial availability of at least one adduct of alane. The absence of direct metal-carbon bonds in adducts of metal hydrides can minimize the formation of deleterious carbonaceous material during applications of CVD techniques, in contrast to some metal alkyl species.10, 11... 

Eu—H system.—The lighter rare earth trihydrides have a face centered cubic structure whilst those of samarium and the heavier rare earths are hexagonal close packed. Europium and ytterbium, however, form orthorhombic dihydrides [236]. Although it has been possible to prepare [237] a hydride of ytterbium with empirical formula YKH2.55 all attempts to prepare the europium trihydride failed. 

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