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Richard B. Ortega

University of Arizona

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Featured researches published by Richard B. Ortega.

Polyhedron | 1986

Structure and properties of tris(quinoxaline-2,3-dithiolato)molybdate(IV)

Stephen Boyde; C. D. Garner; John H. Enemark; Richard B. Ortega

Abstract The synthesis, crystal structure, spectroscopic and electrochemical properties of tris(quinoxaline-2,3-dithiolato)molybdate(IV), [Mo(qdt)3]2−, are reported. This complex undergoes reversible protonation on the ligand nitrogen atoms and the triply protonated species [Mo(Hqdt)3]+ has also been isolated and characterized as its chloride salt.

Polyhedron | 1986

STRUCTURAL, SPECTROSCOPIC AND ELECTROCHEMICAL STUDIES ON A NEW MO(VI) CATECHOLATE COMPLEX

Stuart Bristow; C. David Garner; Gareth A. Morris; John H. Enemark; Martin Minelli; Richard B. Ortega

Abstract The reaction of cis-[MoO2(C5H10NO)2] (C5H10NOH = 1-piperidinol) with benzene 1,2-diol(catechol) in CHCl3 leads to the formation of [MoO(C5H10NO)2(C6H4O2)], which has been characterized by X-ray crystallography, NMR spectroscopy and cyclic voltammetry.

Inorganic Chemistry | 1987

Syntheses, structures, and spectroscopic properties of six-coordinate mononuclear oxo-molybdenum(V) complexes stabilized by the hydrotris(3,5-dimethyl-1-pyrazolyl)borate ligand

W. E. Cleland; Kerry M. Barnhart; Katsumoto Yamanouchi; David Collison; Frank E. Mabbs; Richard B. Ortega; John H. Enemark

Inorganic Chemistry | 1989

Molybdenum(VI)-dioxo complexes with linear and tripodal tetradentate ligands: models for the molybdenum(VI/V) centers of the molybdenum hydroxylases and related enzymes. 1. Syntheses and structures

Carol J. Hinshaw; Gang Peng; Raghuvir Singh; J. T. Spence; John H. Enemark; Michael A. Bruck; John G. Kristofzski; Shannath L. Merbs; Richard B. Ortega; Pamela A. Wexler

Inorganic Chemistry | 1988

Synthesis, characterization, and oxygen atom transfer reactions of (HB(Me sub 2 C sub 3 N sub 2 H) sub 3 )MoO(S sub 2 P(OR) sub 2 ) and (HB(Me sub 2 C sub 3 N sub 2 H) sub 3 )MoO sub 2 (. eta. sup 1 -S sub 2 P(OEt) sub 2 )

Sue A. Roberts; Charles G. Young; W. E. Cleland; Richard B. Ortega; John H. Enemark

Inorganic Chemistry | 1984

Molybdenum(VI)―dioxo complexes with sterically bulky ligands

P. Subramanian; J. T. Spence; Richard B. Ortega; John H. Enemark

Journal of the American Chemical Society | 1987

Mononuclear oxo- and sulfidomolybdenum(IV) complexes: syntheses and crystal structures of {HB(Me2C3N2H)3}MoE(S2CNEt2) (E=O, S) and related complexes

Charles G. Young; Sue A. Roberts; Richard B. Ortega; John H. Enemark

Organometallics | 1984

Distortions in coordinated cyclopentadienyl rings: crystal, molecular, and electronic structural analysis of (.eta.5-pentamethylcyclopentadienyl)dicarbonylrhodium

Dennis L. Lichtenberger; Charles H. Blevins; Richard B. Ortega

Inorganic Chemistry | 1982

Crystal and molecular structure of sodium hydrogen bis(.mu.-ms-tartrato)-bis(2-2'-dipyridyl)dichromate(III) heptahydrate: a di-ms-tartrate-bridged binuclear complex with a short intramolecular hydrogen bond

Richard B. Ortega; Robert E. Tapscott; Charles F. Campana

Inorganic Chemistry | 1982

Crystal and molecular structure of the distal-methyl isomer of tetrasodium [.mu.-(+)-threo-monomethyltartrato(4-)]-[.mu.-(-)-threo-monomethyltartrato(4-)]-bis(oxovanadate(IV)) 14-hydrate

Richard B. Ortega; Robert E. Tapscott; Charles F. Campana

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John H. Enemark

University of Arizona

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J. T. Spence

Utah State University

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Martin Minelli

University of Arizona

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Robert E. Tapscott

University of New Mexico

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Sue A. Roberts

University of Arizona

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W. E. Cleland

University of Mississippi

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Charles F. Campana

Bruker

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Gareth A. Morris

University of Manchester

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Charles G. Young

University of Melbourne

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Katsumoto Yamanouchi

University of Arizona

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