Yan Zang | Researchain

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Featured researches published by Yan Zang.

Journal of Biological Inorganic Chemistry | 2001

A nonheme iron(II) complex that models the redox cycle of lipoxygenase

Jinheung Kim; Yan Zang; Miquel Costas; Roger G. Harrison; Elizabeth C. Wilkinson; Lawrence Que

Abstract. The air-stable complex [Fe(6-Me3-TPA)(O2CAr)]+ [1; 6-Me3-TPA=tris(6-methyl-2-pyridylmethyl)amine] has been synthesized as a model for the iron(II) site of lipoxygenase. This iron(II) complex reacts with 0.5 equiv ROOH to form a yellow species, which has been formulated as [FeIII(OH)(6-Me3-TPA)(O2CAr)]+ (2) by electrospray mass spectrometry. Addition of more ROOH converts 2 into a purple species, which is characterized by electrospray ionization mass spectrometry and resonance Raman spectroscopy as [FeIII(OOR)(6-Me3-TPA)(O2CAr)]+. The purple species is metastable and decomposes via Fe-O bond homolysis to regenerate the starting iron(II) complex. These metal-centered transformations parallel the changes observed for lipoxygenase in its reaction with its product hydroperoxide.

Journal of the American Chemical Society | 1995

A High-Valent Nonheme Iron Intermediate. Structure and Properties of [Fe2(.mu.-O)2(5-Me-TPA)2](ClO4)3

Yanhong Dong; Hiroshi Fujii; Michael P. Hendrich; Randolph A. Leising; Gaofeng Pan; Clayton R. Randall; Elizabeth C. Wilkinson; Yan Zang; Lawrence Que; Brian G. Fox; Karl Kauffmann; Eckard Münck

Inorganic Chemistry | 1995

X-RAY ABSORPTION PRE-EDGE STUDIES OF HIGH-SPIN IRON(II) COMPLEXES

Clayton R. Randall; Lijin Shu; Yu Min Chiou; Karl S. Hagen; Masami Ito; Nobumasa Kitajima; Rene Lachicotte; Yan Zang; Lawrence Que

Journal of the American Chemical Society | 1999

Complexes with FeIII2(μ-O)(μ-OH), FeIII2(μ-O)2, and [FeIII3(μ2-O)3] Cores: Structures, Spectroscopy, and Core Interconversions

Hui Zheng; Yan Zang; Yanhong Dong; Victor G. Young; Lawrence Que

Journal of the American Chemical Society | 1995

The First Bis(.mu.-oxo)diiron(III) Complex. Structure and Magnetic Properties of [Fe2(.mu.-O)2(6TLA)2](ClO4)2

Yan Zang; Yanhong Dong; Lawrence Que; Karl Kauffmann; Eckard Münck

Journal of the American Chemical Society | 1997

MODELS FOR NONHEME DIIRON ENZYMES. ASSEMBLY OF A HIGH-VALENT FE2(MU -O)2 DIAMOND CORE FROM ITS PEROXO PRECURSOR

Yanhong Dong; Yan Zang; Lijin Shu; Elizabeth C. Wilkinson; Lawrence Que; Karl Kauffmann; Eckard Münck

Biochemistry | 1993

X-ray Absorption Studies of the Ferrous Active Site of Isopenicillin N Synthase and Related Model Complexes

Clayton R. Randall; Yan Zang; Anne E. True; Lawrence Que; John M. Charnock; C. David Garner; Yoshiyuki Fujishima; Christopher J. Schofield; Jack E. Baldwin

Journal of the American Chemical Society | 1998