@article {560,
	title = {Insertion and removal of protons in single-crystal orthorhombic molybdenum trioxide under H2S/H-2 and O-2/N-2},
	journal = {Chemistry of Materials},
	volume = {14},
	number = {4},
	year = {2002},
	note = {ISI Document Delivery No.: 542DRTimes Cited: 13Cited Reference Count: 49},
	month = {Apr},
	pages = {1788-1796},
	type = {Article},
	abstract = {Using AFM/XRD/XPS methods, in this paper, we investigate protonation and deprotonation processes in single-crystal samples of orthorhombic molybdenum trioxide (alpha-MoO3). At low temperatures, a small part of alpha-MoO3 is changed to needlelike HxMoO3 (x approximate to 0.33) along <203> directions in a H2S/H-2 gas stream. When these elongated crystallites assemble into a maze structure, the growth of HxMoO3 is gradually ceased due to closing entrance for hydrogen. At higher temperatures, the needlelike HxMoO3 crystallites turn to a growth perpendicular to <203>, which leads to the formation of HxMoO3 blocks. It is observed that the basal plane of alpha-MoO3 is severely buckled upon the protonation. Surface sulfidation is also observed. The formed HxMoO3 or surface MOS2, however, can be readily converted back to their original-phase alpha-MoO3 in air at 350-400 degreesC. This oxidation process gives rise to a flattened (010) topography (i.e., debuckling) on which shallowly divided alpha-MoO3 surface blocks bounded with {101} planes are formed. When an alpha-MoO3 (010) plane embedded with nanocrystallites is used to create surface stress or nucleation sites, the insertion mode of hydrogen along <001> is further reconfirmed in this work. A correlation of surface/bulk phases upon various chemical reactions is addressed, and a model to summarize these changes is also proposed.},
	keywords = {BRONZES, DECOMPOSITION, GROWTH, HXMOO3, HYDROGEN, MOO3, NUCLEAR-MAGNETIC-RESONANCE, RAY PHOTOELECTRON-SPECTROSCOPY, SILICA SUPPORTS, THIN-FILMS, XPS},
	isbn = {0897-4756},
	url = {<Go to ISI>://000175028700050},
	author = {Zeng, H. C. and Xie, F. and Wong, K. C. and Mitchell, K. A. R.}
}
@article {5157,
	title = {The nitrous oxide complex, RuCl2(eta(1)-N2O)(P-N)(PPh3) (P-N = [o-(N,N-dimethylamino)phenyl]diphenylphosphine); Low temperature conversion of N2O to N-2 and O-2},
	journal = {Journal of the American Chemical Society},
	volume = {123},
	number = {35},
	year = {2001},
	note = {ISI Document Delivery No.: 467XNTimes Cited: 22Cited Reference Count: 62},
	month = {Sep},
	pages = {8596-8597},
	type = {Article},
	keywords = {3-COORDINATE MOLYBDENUM(III), ADSORBED N2O, BOND, CRYSTAL-STRUCTURE, DECOMPOSITION, LEWIS ACIDITY, N-15 NMR, OXYGEN-ATOM TRANSFER, REACTIVITY, REDUCTASE},
	isbn = {0002-7863},
	url = {<Go to ISI>://000170729200019},
	author = {Pamplin, C. B. and Ma, E. S. F. and Safari, N. and Rettig, S. J. and James, Brian R.}
}
@article {4879,
	title = {The adsorption of microcystin-LR by natural clay particles},
	journal = {Toxicon},
	volume = {38},
	number = {2},
	year = {2000},
	note = {ISI Document Delivery No.: 257VLTimes Cited: 40Cited Reference Count: 35},
	month = {Feb},
	pages = {303-308},
	type = {Article},
	abstract = {The microcystin cyanobacterial hepatotoxins represent an increasingly severe global health hazard. Sines microcystins are found world wide in drinking water reservoirs concern about the impact on human health has prompted investigations into remedial water treatment methods. This preliminary study investigates the scavenging from water of microcystin-LR by fine-grained particles known to have a high concentration of the clay minerals kaolinite and montmorillonite. The results show that more than 81\% of microcystin-LR can be removed from water by clay material. Thus, microcystin-LR is indeed scavenged from water bodies by fine-grained particles and that this property may offer an effective method of stripping these toxins from drinking water supplies. (C) 1999 Elsevier Science Ltd. All rights reserved.},
	keywords = {BLOOM, cyanobacteria, DECOMPOSITION, DIARRHETIC SHELLFISH TOXINS, ENVIRONMENT, IDENTIFICATION, OKADAIC ACID, OSCILLATORIA-AGARDHII, PROTEIN PHOSPHATASE INHIBITORS, TUMOR PROMOTION},
	isbn = {0041-0101},
	url = {<Go to ISI>://000083803000016},
	author = {Morris, R. J. and Williams, D. E. and Luu, H. A. and Holmes, C. F. B. and Andersen, R. J. and Calvert, S. E.}
}
@article {4546,
	title = {Synthesis and structure of the tantalum trimethyl complex [P2N2]TaMe3 and its conversion to the tantalum methylidene species [P2N2]Ta = CH2(Me) ([P2N2] = PhP(CH2SiMe2NSiMe2CH2)(2)PPh)},
	journal = {Organometallics},
	volume = {18},
	number = {20},
	year = {1999},
	note = {ISI Document Delivery No.: 244CDTimes Cited: 25Cited Reference Count: 42},
	month = {Sep},
	pages = {4059-4067},
	type = {Article},
	abstract = {A tantalum(V) trimethyl complex and its photolysis product, a relatively stable tantalum(V) methyl methylidene, were prepared using the macrocyclic bis(amido-phosphine) PhP(CH2SiMe2NSiMe2CH2)(2)PPh, abbreviated [P2N2], as an ancillary ligand. The methylidene precursor [P2N2]TaMe3 is generated by the reaction of [P2N2]Li-2. C4H8O2 (C4H8O2 = 1,4-dioxane) with TaMe3Cl2. The solid-state X-ray molecular structure demonstrates that the geometry of [P2N2]TaMe3 is a seven-coordinate capped trigonal prism, and NMR studies confirm this is also true in solution at low temperature. Photolysis with a UV source generates [P2N2]Ta=CH2(Me), with the elimination of methane. The X-ray solid-state molecular structure of [P2N2]Ta=CH2(Me) is intermediate between octahedral and trigonal-prismatic geometry. Variable-temperature NMR studies demonstrate that the double-bonded methylidene moiety rotates with a barrier of 33.5 +/- 0.6 kJ/mol, in contrast to the larger barrier estimated for the previously characterized 18-electron complex (eta(5)-C5H5)(2)Ta=CH2(Me). Reaction of [P2N2]TaMe3 with Ph3C+BF4- or PhNMe2H+B(C6F5)(4)(-) produced {[P2N2]TaMe2}+BF4- and {[P2N2]TaMe2}B+(C6F5)(4)(-), respectively. Attempts to deprotonate {[P2N2]TaMe2}(+) did not provide a chemical route to [P2N2]Ta=CH2(Me) and instead generated either [P2N2]TaMe2F or the product of deprotonation of the [P2N2] ligand methylene backbone, Ta(Me-2)[(CHSiMe2NSiMe2CH2P(Ph)CH2SiMe2NSiMe2CH2PPh)], depending on the base and counteranion used.},
	keywords = {ABSTRACTION, CATALYSIS, COORDINATION, CRYSTAL-STRUCTURES, DECOMPOSITION, DERIVATIVES, imido, METAL-CARBON BONDS, METHYLENE COMPLEX, REACTIVITY},
	isbn = {0276-7333},
	url = {<Go to ISI>://000083033500019},
	author = {Fryzuk,Michael D. and Johnson, S. A. and Rettig, S. J.}
}
@article {4385,
	title = {(13)CPMAS-NMR spectroscopy and chemical analysis of coarse woody debris in coastal forests of Vancouver Island},
	journal = {Forest Ecology and Management},
	volume = {111},
	number = {1},
	year = {1998},
	note = {ISI Document Delivery No.: 137DZTimes Cited: 46Cited Reference Count: 52},
	month = {Nov},
	pages = {51-68},
	type = {Article},
	abstract = {The coastal forests of British Columbia have large accumulations of coarse woody debris, and information on this pool is considered essential in developing sustainable management practices. We characterized coarse woody debris (7-12 and >12 cm diameter) in forest chronosequences of four age classes located on the eastern and western sides of Vancouver Island. For three species (Douglas-fir (Pseudotsuga menziesii (Mirb.) France), western hemlock (Tsuga heterophylla (Raf.) Sarg), western red cedar (Thuja plicata Donn.)) and unidentified samples, increases in decay class (I to V, assigned in the field) were associated with decreasing density, and small increases in concentrations of C, N, and P. Sulfur concentrations (0.6-2.4 g/kg) were higher than those found elsewhere for wood and did not show any significant changes with decay class. C-13 nuclear magnetic resonance spectroscopy with cross polarization and magic-angle spinning (C-13-CPMAS-NMR) was used to analyze organic components in a subset of samples >12 cm. Logs up to decay class III generally showed little change in composition or a slight increase in polysaccharide C. After this, polysaccharide was lost more quickly and logs of decay class V were composed almost entirely of lignin, a pattern consistent with decay by brown-rot fungi. However, two samples of western red cedar decay class III and IV showed accumulation of polysaccharide, the pattern expected from white-rot fungi. The results of the density, chemical and NMR analysis indicate that for management purposes, a system with fewer decay classes would suffice. (C) 1998 Elsevier Science B.V.},
	keywords = {BRITISH-COLUMBIA, brown-rot, chronosequence, COLORADO BLUE SPRUCE, cross polarization, CUO OXIDATION, DECOMPOSITION, DOUGLAS-FIR FORESTS, LIGNIN, NUCLEAR-MAGNETIC-RESONANCE, NUTRIENT CONTENT, SOLID-STATE NMR, SULFUR, WESTERN OREGON, white-rot, WHITE-ROT DECAY},
	isbn = {0378-1127},
	url = {<Go to ISI>://000076900700005},
	author = {Preston, C. M. and Trofymow, J. A. and Niu, J. and Fyfe, C. A.}
}
@article {4222,
	title = {A new linear ion trap time-of-flight system with tandem mass spectrometry capabilities},
	journal = {Rapid Communications in Mass Spectrometry},
	volume = {12},
	number = {20},
	year = {1998},
	note = {ISI Document Delivery No.: 130DBTimes Cited: 92Cited Reference Count: 64},
	pages = {1463-1474},
	type = {Article},
	abstract = {A new hybrid linear ion trap time-of-flight mass spectrometer has been constructed and the first results for tandem-in-time MS/MS in a 2-dimensional Paul trap are presented. The instrument consists of an electrospray ionization source and two radio frequency (RF) only quadrupoles operating at a pressure of 7 mTorr N-2 which are coupled orthogonally to a linear TOFMS. Ions are trapped in an RF-only quadrupole through the application of timed stopping potentials on the entrance and exit apertures. Through the coupling of an auxiliary waveform generator on one pair of the ion trap rods a small dipolar excitation voltage is superimposed on the quadrupolar electric field. This voltage is used for precursor isolation via broadband excitation and collision induced dissociation through mass selective resonant excitation. Instrumental performance and choice of operating parameters are demonstrated by recording fragment spectra for +3 ions of renin substrate and fl ions of reserpine. TOFMS mass resolution (m/Delta m)(FWHM) is as high as 740 at m/z = 609. Fragmentation efficiency is greater than 50\% and excitation mass resolution is 60-75. (C) 1998 John Wiley \& Sons, Ltd.},
	keywords = {DECOMPOSITION, EJECTION, ELECTROSPRAY-IONIZATION, FREQUENCY STANDARD APPLICATIONS, MOLECULE REACTION, PARAMETERS, PERFORMANCE, PROTEINS, QUADRUPOLE, RESONANCE, SPECTROSCOPY},
	isbn = {0951-4198},
	url = {<Go to ISI>://000076503200007},
	author = {Campbell, J. M. and Collings, B. A. and Douglas, D. J.}
}
@article {4331,
	title = {X-ray photoelectron spectroscopy studies of the reduction of MoO3 thin films by NH3},
	journal = {Applied Surface Science},
	volume = {136},
	number = {1-2},
	year = {1998},
	note = {ISI Document Delivery No.: 133ZGTimes Cited: 7Cited Reference Count: 33},
	month = {Oct},
	pages = {147-158},
	type = {Article},
	abstract = {X-ray photoelectron spectroscopy (XPS) has been used to gain insight into surface reaction pathways associated with the nitridation by NH3 of MoO3 thin films grown on metallic substrates. The samples formed can be seen as model hydrodenitrogenation (HDN) catalysts, but the more-controlled surface morphology allows spectral features to be studied in the absence of charging effects that can interfere with such measurements on high-area samples. Observed core level and valence spectra are consistent with the MoO3 being reduced, but the degree of reduction depends on the reaction temperature. Heating to 350 degrees C indicates some conversion to Mo(+5) and {\textquoteright}O-rich{\textquoteright} Mo(+4) components, while heating to 450 degrees C and to 700 degrees C give respectively a {\textquoteright}N-rich{\textquoteright} Mo(+4) form and a Mo(+3) oxynitride as the dominant components. It is concluded that the nitridation of MoO3 by NH3 involves initial hydrogenation, with subsequent elimination of water, and the effective replacement of O by N as the reduction continues. Surface compositions determined here during the nitridation process contrast with conclusions reached previously for the evolution of bulk phases as deduced by X-ray diffraction. (C) 1998 Elsevier Science B.V. All rights reserved.},
	keywords = {ADSORPTION, ammonia, Auger, CATALYSTS, DECOMPOSITION, HYDRODENITROGENATION, MOLYBDENUM NITRIDES, MOO3, NH3, REDUCTION, SURFACE-AREA, X-ray photoelectron spectroscopy, XPS},
	isbn = {0169-4332},
	url = {<Go to ISI>://000076717000022},
	author = {Leung, Y. L. and Wong, P. C. and Mitchell, K. A. R. and Smith, K. J.}
}
@article {3029,
	title = {MICROMORPHOLOGICAL AND C-13 NMR CHARACTERIZATION OF A HUMIC, LIGNIC, AND HISTIC FOLISOL FROM BRITISH-COLUMBIA},
	journal = {Canadian Journal of Soil Science},
	volume = {74},
	number = {1},
	year = {1994},
	note = {ISI Document Delivery No.: NG042Times Cited: 9Cited Reference Count: 39},
	month = {Feb},
	pages = {1-15},
	type = {Article},
	abstract = {The thick folic (mainly upland forest) materials (> 40 cm of accumulated organic material) that occur in the Coastal Western Hemlock Biogeoclimatic Zone in British Columbia have not been described with regard to the spatial interrelationships of the soil constituents in context with the chemical composition of the different horizons. Micromorphological assessment and solid-state C-13 NMR were used to characterize the accumulated folic materials from a Lignic Folisol (northern Vancouver Island), Histic Folisol (Prince Rupert, BC) and a Humic Folisol (Queen Charlotte Islands, BC). Micromorphology provided information on the spatial relationships of the soil constituents and C-13 NMR provided data on the chemical components of the folic materials. Soil faunal activity, primarily from mites, was the dominant soil-forming process observed in the organic horizons of the Folisols, being especially prominent in the Lignic Folisol with the breakdown of woody materials. Solid state C-13 CPMAS NMR spectra facilitated distinguishing three main types of horizons: (1) Horizons derived from accumulated residues (L, Fr, and Hr) showing higher carbohydrate-like C and O-alkyl C values and lower total aromatics; (2) Horizons with advanced decomposition (Hr2, Oh1, and Hd) which were higher in alkyl C; and (3) Horizons derived from ligneous material (Fw and Hdw) where carbohydrate-like C was less than total aromatic C. Implications for adequate nutrient content and forest growth were inferred from the observed micromorphology and chemical composition of the folic materials.},
	keywords = {C-13 NMR, CHEMICAL-COMPOSITION, DECOMPOSITION, FAUNAL ACTIVITY, FOLISOL, FOREST SOILS, IONIZATION MASS-SPECTROMETRY, IR, LITTER, MICROMORPHOLOGY, NITROGEN, NUCLEAR-MAGNETIC-RESONANCE, ORGANIC-MATTER, SPECTROSCOPY},
	isbn = {0008-4271},
	url = {<Go to ISI>://A1994NG04200001},
	author = {Fox, C. A. and Preston, C. M. and Fyfe, C. A.}
}
@article {7295,
	title = {DECOMPOSITION OF ORGANOARSENIC COMPOUNDS BY USING A MICROWAVE-OVEN AND SUBSEQUENT DETERMINATION BY FLOW-INJECTION HYDRIDE GENERATION ATOMIC-ABSORPTION SPECTROMETRY},
	journal = {Applied Organometallic Chemistry},
	volume = {6},
	number = {2},
	year = {1992},
	note = {ISI Document Delivery No.: HQ168Times Cited: 61Cited Reference Count: 33INTERNATIONAL CONF ON ENVIRONMENTAL AND BIOLOGICAL ASPECTS OF MAIN-GROUP ORGANOMETALS ( ICEBAMO )SEP 15-19, 1991PADUA, ITALYUNIV PADUA, ITALIAN CHEM SOC},
	month = {Apr},
	pages = {161-171},
	type = {Proceedings Paper},
	abstract = {Environmentally important organoarsenicals such as arsenobetaine, arsenocholine and tetramethylarsonium ion do not form volatile hydrides under the commonly used analytical conditions on treatment with borohydride and it has been difficult to determine their concentrations without further derivatization. This paper describes a rapid method which completely decomposes and oxidizes these arsenicals to arsenate by using potassium persulphate and sodium hydroxide with the aid of microwave energy. The quantitative decomposition of these species permits their determination at low nanogram levels, by hydride generation atomic absorption spectrometry (HG AA). A new hydride generator which has high efficiency and minimum dead volume and therefore is suitable for flow injection analysis (FIA) is also described. A system combining flow injection analysis, on-line microwave oven digestion, and hydride generation followed by atomic absorption measurement, is developed. This system is capable of performing analysis at a sample throughput of 100-120 per hour. Calibration curves were linear from 10 to 200 ng cm-3 of arsenic and the detection limit was 5 ng cm-3 for a 100-mu-l injection or 0.5 ng of arsenic. All ten organoarsenic compounds studied gave arsenate as the decomposition product, which was confirmed by using molybdenum blue photometric measurement.},
	keywords = {ABSORPTION SPECTROMETRY, arsenic, arsenobetaine, atomic, DECOMPOSITION, DETERMINATION, DISSOLUTION, ENVIRONMENT, FLOW INJECTION ANALYSIS, HYDRIDE GENERATION, IDENTIFICATION, LIQUID-CHROMATOGRAPHY, MICROWAVE OVEN DIGESTION, MUSCLE REFERENCE MATERIAL, QUANTITATION, TRACE-ELEMENTS, WATER},
	isbn = {0268-2605},
	url = {<Go to ISI>://A1992HQ16800008},
	author = {Le, X. C. and Cullen, W. R. and Reimer, K. J.}
}
