@article {2521,
	title = {Inactivity of iridium-triphenylphosphine complexes for catalytic imine hydrogenation: formation of neutral, dihydrido-ortho-metallated species},
	journal = {Reaction Kinetics and Catalysis Letters},
	volume = {98},
	number = {2},
	year = {2009},
	note = {ISI Document Delivery No.: 519XSTimes Cited: 0Cited Reference Count: 32Marcazzan, Paolo James, Brian R.},
	month = {Dec},
	pages = {193-204},
	type = {Article},
	abstract = {Reactions of cis,trans,cis-[Ir(H)(2)(PPh3)(2)(MeOH)(2)]PF6 in MeOH with the imines Ph(R{\textquoteright})C=NR under 1 atm H-2 precipitate the neutral, Ir(III)-dihydrido complexes [Ir(H)(2){RN=C(R{\textquoteright})(o-C H-6(4))}(PPh3)(2)], where R = alkyl or benzyl, and R{\textquoteright} = Ph, H, or Me; the dihydrides are well characterized through elemental analysis, NMR and IR data and, in one case, with the imine Ph2C=NCH2Ph, an X-ray structure. These products are formed via intermediate ortho-metallated species, exemplified by [Ir(H){PhCH2N=CPh(o-C H-6(4))}(PPh3)(2)(MeOH)]PF6 in the case of the Ph2C=NCH2Ph reaction; the intermediate then reacts with H-2 (via net heterolytic cleavage: H-2 -> H- + H+) to give the neutral dihydride and HPF6 as co-product. The {\textquoteright}unique{\textquoteright} imine PhCH=NPh, under the same conditions, does not form a dihydride and instead is readily catalytically hydrogenated to PhCH2N(H)Ph; remarkably, we have shown previously that this imine is {\textquoteright}unique{\textquoteright} within the corresponding Rh system in that no catalytic hydrogenation occurs because the amine product {\textquoteright}poisons{\textquoteright} the Rh centre by coordination through the N-phenyl ring.},
	keywords = {CHEMISTRY, DIHYDROGEN, H-2, Hydrido-complexes, IMINE HYDROGENATION, Ortho-metallation, PROTONS, TRANS-INFLUENCE, xx Iridium phosphine complexes},
	isbn = {0133-1736},
	url = {<Go to ISI>://000271803800001},
	author = {Marcazzan, P. and James, Brian R.}
}
@article {23411,
	title = {Side-on End-on Bound Dinitrogen: An Activated Bonding Mode That Facilitates Functionalizing Molecular Nitrogen},
	journal = {Accounts of Chemical Research},
	volume = {42},
	year = {2009},
	month = {Jan},
	pages = {127-133},
	type = {Review},
	abstract = {<p>Molecular nitrogen is the source of all of the nitrogen necessary to sustain life on this planet. How it is incorporated into the biosphere is complicated by its intrinsic inertness. For example, biological nitrogen fixation takes N-2 and converts it into ammonia using various nitrogenase enzymes, whereas industrial nitrogen fixation converts N-2 and H-2 to NH3 using heterogeneous iron or ruthenium surfaces. In both cases, the processes are energy-intensive. Is it possible to discover a homogeneous catalyst that can convert molecular nitrogen into higher-value organonitrogen compounds using a less energy-intensive pathway? If this could be achieved, it would be considered a major breakthrough in this area. In contrast to carbon monoxide, which is reactive and an important feedstock in many homogeneous catalytic reactions, the ischelectronic but inert N-2 molecule is a very poor ligand and not a common industrial feedstock, except for the above-mentioned industrial production of NH3. Because N-2 is readily available from the atmosphere and because nitrogen is an essential element for the biosphere, attempts to discover new processes involving this simple small molecule have occupied chemists for over a century. Since the first discovery of a dinitrogen complex in 1965, inorganic chemists have been key players in this area and have contributed much fundamental knowledge on structures, binding modes, and reactivity patterns. For the most part, the synthesis of dinitrogen complexes relies on the use of reducing agents to generate an electron-rich intermediate that can interact with this rather inert molecule. In this Account, a facile reaction of dinitrogen with a ditantalum tetrahydride species to generate the unusual side-on end-on bound N-2 moiety is described. This particular process is one of a growing number of new, milder ways to generate dinitrogen complexes. Furthermore, the resulting dinitrogen complex undergoes a number of reactions that expand the known patterns of reactivity for coordinated N-2. This Account reviews the reactions of ([NPN]Ta)(2)(mu-H)(2)(mu-eta(1):eta(2)-N-2), 2 (where NPN = PhP(CH2SiMe2NPh)(2)), with a variety of simple hydride reagents, E-H (where E-H = R2BH, R2AlH, RSiH3, and Cp2ZrCl(H)), each of which results in the cleavage of the N-N bond to form various functionalized imide and nitride moieties. This work is described in the context of a possible catalytic cycle that in principle could generate higher-value nitrogen-containing materials and regenerate the starting ditantalum tetrahydride. How this fails for each particular reagent is discussed and evaluated.</p>},
	keywords = {ammonia, CLEAVAGE, CONVERSION, COORDINATED N-2 LIGAND, H-2, HYDROSILYLATION, MOLYBDENUM, REACTIVITY, REDUCTION, TANTALUM COMPLEX},
	isbn = {0001-4842},
	author = {Fryzuk, MD}
}
@article {3743,
	title = {Monitoring of the formation and removal of bulk, surface, and interfacial carrier traps on silicon(100)},
	journal = {Canadian Journal of Physics},
	volume = {74},
	year = {1996},
	note = {ISI Document Delivery No.: WU206Times Cited: 8Cited Reference Count: 177th Canadian Semiconductor Technology ConferenceAUG 14-18, 1995OTTAWA, CANADANatl Res Council CanadaSuppl. 1},
	pages = {S233-S238},
	type = {Proceedings Paper},
	abstract = {An RF probe was used to monitor the steady-state photo-generated carrier concentration in silicon with and without an oxide layer. The changes in this steady-state concentration during exposure to gaseous molecular and atomic species such as He, H-2, O-2, H, and O at temperatures between 25 and 450 degrees C are interpreted in terms of changes in the bulk silicon, interface, and exposed surface. The initial experiments established the relationship between the carrier concentration and the RF-probe signal, and distinguished between changes in the bulk, and on silicon surfaces and interfaces. It was found that in the case of hydrogen, bulk passivation and depassivation by H-2 can be observed only at elevated temperatures, with or without an oxide layer. H-atom depassivation can be observed at all temperatures and is irreversible at room temperature. The formation of an oxide layer by exposure to O atoms at 25 and 450 degrees C was followed, and the oxides formed were then treated in an attempt to create an SiO2/Si interface with an acceptable density of interfacial states.},
	keywords = {111 SI-SIO2 INTERFACE, ATOMIC-HYDROGEN, H-2, KINETICS, PASSIVATION, PB CENTERS, SI/SIO2 INTERFACE, STATES, TEMPERATURE},
	isbn = {0008-4204},
	url = {<Go to ISI>://A1996WU20600047},
	author = {Li, H. J. and Ogryzlo, E. A.}
}
@article {3311,
	title = {KINETIC-STUDY OF ATOMIC-HYDROGEN ETCHING OF GAAS(100)},
	journal = {Journal of Applied Physics},
	volume = {77},
	number = {5},
	year = {1995},
	note = {ISI Document Delivery No.: RC303Times Cited: 3Cited Reference Count: 39},
	month = {Mar},
	pages = {2155-2159},
	type = {Article},
	keywords = {GaAs, GALLIUM-ARSENIDE, H-2, OXIDES, PLASMAS, RATE CONSTANTS, RESONANCE, SI, SILICON, SURFACES},
	isbn = {0021-8979},
	url = {<Go to ISI>://A1995RC30300054},
	author = {Elzey, J. W. and Meharg, P. F. A. and Ogryzlo, E. A.}
}
@article {7315,
	title = {A LEED CRYSTALLOGRAPHIC ANALYSIS FOR THE C(2X2) SURFACE-STRUCTURE FORMED BY THE CHEMISORPTION OF PH3 ON THE RH(100) SURFACE},
	journal = {Surface Science},
	volume = {268},
	number = {1-3},
	year = {1992},
	note = {ISI Document Delivery No.: HR728Times Cited: 5Cited Reference Count: 26},
	month = {May},
	pages = {L274-L278},
	type = {Letter},
	abstract = {An analysis with low-energy electron diffraction (LEED) is reported for the c(2 x 2) structure obtained by the adsorption and dissociation of PH3 on the Rh(100) surface. Intensity-versus-energy curves measured for 12 independent beams were compared with those from multiple scattering calculations for overlayer structural models in which the metal atoms remain in their regular bulk positions. The best correspondence between the two sets of beam intensities occurs with P atoms chemisorbed in the "expected" 4-coordinate bonding sites, and with the nearest-neighbour P-Rh bond distance equal to 2.13 angstrom.},
	keywords = {ADSORPTION, CHEMISTRY, CO, H-2, PHOSPHORUS-CONTAINING MOLECULES, PREADSORBED PHOSPHORUS},
	isbn = {0039-6028},
	url = {<Go to ISI>://A1992HR72800006},
	author = {Lou, J. R. and Mitchell, K. A. R.}
}
