Molybdenum telluride

Molybdenum hexafluoride. 3,1412 Molybdenum-iron-sulfur complexes, 4,241 Molybdenum oxide amino acid formation prebiotic systems, 6, 872 Molybdenum storage protein microorganisms, 6, 681 Molybdenum telluride, 3, 1431 Molybdenum tetraalkoxides physical properties, 2, 347 Molybdenum tribromide, 3,1330 Molybdenum trichloride, 3,1330 Molybdenum trifluoride, 3, 1330 Molybdenum trihalides, 3, 1330 bond lengths, 3, 1330 magnetic moments, 3,1330 preparation, 3,1330 properties, 3, 1330 structure, 3,1330 Molybdenum triiodide, 3,1330 Molybdenum trioxide complexes, 3, 1379 Molybdenum triselenide, 3, 143)... 

Chromium(III) sulfide, CrySs chromium selenide, CrSe chromium(III) telluride, Cr2Tc3 molybdenum(IV) sulfide, M0S2 (molybdenite) molybde-num(IV) selenide, MoSe2 molybdenum(IV) telluride, MoTey tungsten(IV) sulfide,... 

Lubricants. Tellurides of titanium, zirconium, molybdenum, tungsten, and other refractory metals are heat- and vacuum-stable. This property makes them useful in solid self-lubricating composites in the electronics, instrumentation, and aerospace fields (see Lubrication and lubricants). Organic tellurides are antioxidants in lubricating oils and greases. 

Lithium is used to reduce metallic oxides in metallurgical operations, and the reactions, after initiation at moderate temperatures, are violently exothermic and rapid. Chromium(III) oxide reacts at 185°C, reaching 965° similarly molybdenum trioxide (180 to 1400°), niobium pentoxide (320 to 490°), titanium dioxide (200—400 to 1400°), tungsten trioxide (200 to 1030°), vanadium pentoxide (394 to 768°) also iron(II) sulfide (260 to 945°), and manganese telluride (230 to 600°C) [1]. Residual... 

Tri-f-butylphosphane telluride reacted with the hexacarbonyls of chromium, molybdenum, and tungsten in tetrahydrofuran under illumination4 to yield stable phosphane telluride complexes (CO)5M-Te=PR3... 

One of the chlorides in this complex can be exchanged for perchlorate on treatment of a solution of the complex in dichloromethane/acetonitrile with silver perchlorate2. Dicarbonyl(chloromethylidyne)[hydrotris(pyrazol-l-yl)borato]molybdenum(IV) reacted with sodium telluride in aqueous methanol to produce the anionic dicarhonyl[hydro-tris(pyrazol-l-yl)borato telluracarbonylmolybdate(0), which was isolated as the moderately air-stable tetraethylammonium salt. This salt reacted with methyl iodide in acetonitrile to form dicarbonyl[hydrotris(pyrazolo)borato](methyltelluromethylidyne) molybdenum(IV)3. 

The use of a more reduced telluride solution, namely, that of nominal composition Te2 with Cr(CO)6, yields an unusual cluster, [ Cr(CO)5 4Te2]2 (61) (Fig. 17), as the sole product, isolable as its (PPh4)+ salt. The tungsten and molybdenum analogs of this compound are not formed. The structure of the 61 dianion consists of a Te2 chain that is attached to four Cr(CO)5 groups, two on each tellurium atom. 

Carbon monotelluride is only known as a ligand coordinated to osmium or molybdenum. Air-stable carhonyldichloro(telluracarbonyl)bis[triphenylphosphane]osmium(II) was obtained from carbonyldichloro(dichlorocarbene)bis[triphenylphosphane]osmi-um(III) and sodium hydrogen telluride in benzene . ... 

The bathophenanthroline method was used for determining iron in blood plasma [157], in plant materials [158], in waters [159], in niobium, tantalum, molybdenum, and tungsten [42,160], in molybdenum compounds [161], in cobalt [162], in cadmium and cadmium telluride [5], platinum [163], synthetic rubies and sapphires [164], silicon tetrachloride [165], and in boiler water [166]. 

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