Hydrides, exceptional

Volatile hydrides, except those of Periodic Group VII and of oxygen and nitrogen, are named by citing the root name of the element (penultimate consonant and Latin affixes. Sec. 3.1.2.2) followed by the suffix -ane. Exceptions are water, ammonia, hydrazine, phosphine, arsine, stibine, and bismuthine. 

The volatile hydride (arsine in Equation 15.1) is swept by a. stream of argon gas into the inlet of the plasma torch. The plasma flame decomposes the hydride to give elemental ions. For example, arsine gives arsenic ions at m/z 75. The other elements listed in Figure 15.2 also yield volatile hydrides, except for mercury salts which are reduced to the element (Fig), which is volatile. In the plasma flame, the arsine of Equation 15.1 is transformed into As ions. The other elements of Figure 15.2 are converted similarly into their elemental ions. 

Atkah metal hydrides too abstract protons from boranes. While water is produced with basic hydroxides, hydrogen is liberated with hydrides. Except diborane, all other boron hydrides undergo similar reactions, liberating hydrogen ... 

Hydrogen-Tritium Exchange Studies. Isotope exchange experiments were conducted as described previously for the 7-phase hydrides (except TiMo2, that does not form the 7-phase). The results of the isotope separation determinations are shown in Table VI, where the parameter a is defined as ... 

Reaction of Resin-Bound Iron Complex (54) with Alkyl Mercaptans, Thiophenols, and Phenols (Fig. 9)31. Sodium thiolates are prepared analogously to the alkoxides from thiol and sodium hydride, except that dry DMF is used as a solvent. The substitution on the polymer-bound arene (54) is performed at 70° in DMF within 16 h. The resin is filtered and washed with DMF (2 x 50 ml), MeOH (2 x 50 ml), H20 (2 x 50 ml), MeOH (2 x 50 ml), and CH2CI2 (3 x 50 ml) and then dried in vacuo at 40° to yield a red resin. 

E. HF and HF+.—The HF molecule has probably been as much studied theoretically as any other hydride except for LiH. The ground state of HF was recently investigated by Bondybey et al.137 Using extended STO basis sets, their computed SCF wavefunction gave an energy which was within 0.0028 hartree of Cade and Huo s value.104 Correlated wavefunctions were obtained by the first-order pro-... 

The zero-field effective Hamiltonian used to analyse the spectrum was similar to those described earlier for other transition metal hydrides, except for a much more complex set of terms to describe the A-doubling. It was expressed in a form suitable for calculations in a case (a) basis as follows ... 

Reduction of a-methylthio ketones, a-Methylthio and a-phenylthio ketones (1) are reduced with high selectivity to sy/i-alcohols (2) by this complex hydride, except when... 

The 7/ -fluoro-substituent in the e-homo-oestrane derivatives (69) is unusually stable, surviving aromatization of ring a, or reduction of the 3-oxo-group by lithium aluminium hydride, except in refluxing diglyme. ... 

Bro Yes. The same is true with the Lithium aluminum Hydride. Except that a duty tax of 4% of the total cost of the item is required before it is released. This is most likely due to the fact that it is listed as hazardous material and they J ust want to milk you for some money because the stuff requires them to tiptoe when carrying it. ... 

The paramagnetic 15-electron M species react readily with H2 or D2 (equations 77 and 78) to give paramagnetic, thermally stable 17-electron hydrides, except for... 

The maximum numbers of protide sited in the lattice may vary freely between 0 and X depending on the pressure and temperature. The number given in Eq. (4.51) is X = 4 for LaNisH and x = 2 for FeTiH, respectively. This illustrates the number of protium per metal atom as indicated as H/M (H number of protium and M number of metal atoms) that is simply representing the maximum value when fully hydrided. It should be noted that hydrogen is in the state of protium in metal hydrides except for metal-hydrogen complex compounds, as introduced later in this section. 

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