Absorbed molecular

Such binary borides (p. 145), carbides (p. 297) and nitrides (p. 417) as are formed have been referred to already. The ability of the metals to absorb molecular hydrogen has also been alluded to above. While the existence of definite hydrides of nickel and platinum is in doubt the... 

In SBR, the benzene rings protrude like branches from the mbber backbone and absorb molecular vibrations caused by the elastomer chain touching the road surface thereby improving the traction properties. In ENR, the epoxide group performs a similar function like the benzene rings pendant from the backbone. 

M. A. Kessler and O. S. Wolfbeis, Laser-induced fluorometric determination of albumin using longwave absorbing molecular probes, Anal. Biochem. 200, 254-259(1992). 

The interconversion of a- and 7r-allyl complexes has been observed by Kwiatek, Mador, and Seyler in the interesting homogeneous catalytic system of potassium pentacyanocobaltate(II), K3Co(CN)5 (46). This solution absorbs molecular hydrogen to form the active hydride species, Kj[Co (CN)jH]. Addition of butadiene to the hydride results in the formation of a [Pg.36]

Magnetic Optical Properties Magnetism, Reflectance Ferrites, Absorbance Molecular magnets, LCDs Storage media MRI... 

It is well known that hemoglobin effectively absorbs molecular oxygen in the lungs and desorbs it in the terminal tissue although there is only a small difference in the partial pressure of oxygen. This phenomenon is clearly demonstrated by Fig. 23. 

The first group comprises both dry absorbent (molecular sieves, activoted olumino and silica gel) and continuous absorption processes. The dry obsorbent processes will remove virtually oil of the free ond dissolve water from the condensate streom, however they were rejected on the basis that salt deposits in the absorbed water could contomlnote the porous moteriol during regeneration. 

The ability of many Co complexes to reversibly absorb molecular 02 has interested many groups. One requirement is for three or more N donor atoms. This is satisfied by Co(L-HisO)2 which, in solution, rapidly absorbs a half mole of 02 to give a peroxo-bridged intermediate (CoUI02 Co111) further reaction gives [CoII[(L-HisO)2]+. (For references to this reaction see the review by Chow and McAuliffe.17)... 

H20 and 02 absorbers (molecular sieves and other active materials) through which the glove box atmosphere is continuously circulated. 

Solutions of the complex in benzene rapidly absorb molecular oxygen giving an insoluble, green oxygen complex, [Pd P-(C 6H 5) 3 2O 2] This oxygen complex has been implicated as an... 

Failure to use monochromatic radiation, existence of stray radiation, experimental uncertainties in measurement of low absorbances, molecular interaction at high absorbances, concentration-dependent association or dissociation reactions. 

Aqueous solutions of cobalt salts containing cyanide ions have long been known to absorb molecular hydrogen (11, 182, 218). Only recently, however, has it been shown by proton magnetic resonance studies that under certain conditions these solutions contain cobalt-hydrogen species (108, 111). The concentration of the cobalt-hydride complex depends on the... 

As mentioned above, the cobalt cyanide solutions absorb molecular hydrogen and, although this reaction has been studied in some detail, much doubt remains concerning the actual mechanism. A possible mechanism is (64,65) ... 

The ability of many Co" complexes to reversibly absorb molecular has interested many groups. 

Because it was reported that bis(acetylacetonato)cobalt(II) readily absorbed molecular oxygen in the coexistence of base, such as pyridine, cobalt(II) complex was first chosen as a transition-metal catalyst. When 4-phenyl-1-butene was treated with an atmospheric pressure of molecular oxygen in 2-propanol in the presence of a catalytic amount of bis(acetylacetonato)cobalt(II), the corresponding oxygenated product, 4-phenyl-2-butanol, was clearly detected on thin-layer chromatography. As shown in Table 1, the reaction smoothly proceeded to afford 4-phenyl-2-butanol as a major product along with 1-phenylbutane and 4-phenyl-2-butanone when a catalytic amount of bis(acetylacetonato)-... 

An important advantage of absorption spectroscopy with tunable single-mode lasers stems from their capabilities to measure line profiles of absorbing molecular transitions with high accuracy. In case of pressure broadening, the determination of line profiles allows one to derive information about the interaction potential of the collision partners (Sect. 3.3 of Vol. 1 and Sect. 8.1). In plasma physics this technique is widely used to determine electron and ion densities and temperatures. 

In the visible and ultraviolet regions a very high sensitivity can be achieved, if the absorption of laser photons is monitored through the laser-induced fluorescence (Fig. 1.23). When the laser wavelength Al is tuned to an absorbing molecular transition Ei Ek, the number of photons absorbed per second along the path length Ax is... 

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