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Keith R. Levan

University of California, Irvine

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Inorganica Chimica Acta | 1985

Synthesis and structure of an organosamarium aryloxide complex, (C5 Me5)2 Sm(OC6HMe4-2,3,5,6)

William J. Evans; Timothy P. Hanusa; Keith R. Levan

Bis(pentamethylcyclopentadienyl)samarium bis- (tetrahydrofuranate), (C5Me5)2Sm(THF)2, reacts with 2,3,5,6-tetramethylphenol in toluene to yield (C5Me5)2Sm(OC6HMe4-2,3,5,6). The compound crystallizes in the space group P21/c with a = 8.725(3) A, b=18.821(6) A, c=18.461(6) A, β= 111.17(2)°, V = 2827(2) A3 and Dc=1.340 g cm−3 for Z = 4. Molecules of the aryloxide complex are monomeric and exhibit a bent metallocene structure with a nearly linear SmOC(aryloxide) linkage: SmO = 2.13(1) A, OC = 1.29(2) A, and SmOC = 172.3(13)°. Reaction of the samarium complex with phenyllithium produces the previously- characterized species (C5Me5)2Sm(C6H5)(THF).

Inorganic Chemistry | 1986

Synthesis and x-ray crystal structure of bis(pentamethylcyclopentadienyl) lanthanide and yttrium halide complexes

William J. Evans; Jay W. Grate; Keith R. Levan; Ira Bloom; Timothy T. Peterson; Robert J. Doedens; Hongming Zhang; Jerry L. Atwood

Organometallics | 1985

Synthesis and X-ray crystal structure of a dialkyldicyclopentadienylyttrium complex: {(C5H5)2Y[CH2Si(CH3)3]2}2Li2(CH3OCH2CH2OCH3)2(C4H8O2)

William J. Evans; Raul. Dominguez; Keith R. Levan; Robert J. Doedens

Inorganic Chemistry | 1983

An aziridine ligand reaction intermediate. Crystal and molecular structure of [Ni(C22H27N4O2)]Br.2H2O

Keith R. Levan; Charles E. Strouse; Charles A. Root

Inorganic Syntheses: Reagents for Transition Metal Complex and Organometallic Syntheses, Volume 28 | 2007

(η5‐Cyclopentadienyl)Lanthanide Complexes from the Metallic Elements

Glen B. Deacon; Geoff N. Pain; T.D. Tuong; William J. Evans; Keith R. Levan; Raul. Dominguez

Journal of Organic Chemistry | 1981

Isolation and characterization of 1,2,3,5,6,11b-hexahydroimidazo[1,2-d][1,4]benzoxazepine from an aziridine ligand reaction

Keith R. Levan; Charles A. Root

Inorganic Chemistry | 1981

Aziridine ligand reaction: conversion of bis{N-[2-(1-aziridinyl)ethyl]salicylaldimino}nickel(II) to [bis(salicylidene)ethylenediimino]nickel(II)

Keith R. Levan; Charles A. Root

Organometallics | 1988

Additions and Corrections - Synthesis and X-ray Crystal Structure of a Dialkyldicyclopentadienylyttrium Complex: [(C 5 -H 5 ) 2 Y[CH 2 Si(CH 3 ) 3 ] 2 } 2 Li 2 (CH 3 OCH 2 CH 2 OCH 3 ) 2 (C 4 H 8 O 2 )

William J. Evans; Raul. Dominguez; Keith R. Levan; Robert J. Doedens

Organometallics | 1988

Additions and Corrections - Synthesis and X-ray Crystal Structure of a Dialkyldicyclopentadienylyttrium Complex: [(C5-H5)2Y[CH2Si(CH3)3]2}2Li2(CH3OCH2CH2OCH3)2(C4H8O2)

William J. Evans; Raul. Dominguez; Keith R. Levan; Robert J. Doedens

ChemInform | 1987

Synthesis and X-Ray Crystal Structure of Bis(pentamethylcyclopentadienyl) Lanthanoid and Yttrium Halide Complexes.

William J. Evans; Jay W. Grate; Keith R. Levan; Ira Bloom; T. T. Peterson; Robert J. Doedens; H. Zhang; Jerry L. Atwood

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William J. Evans

University of California

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Robert J. Doedens

University of California

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Charles A. Root

University of Michigan

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Raul. Dominguez

University of Nevada

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Charles E. Strouse

University of California

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Ira Bloom

University of Chicago

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Jerry L. Atwood

University of Missouri

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Timothy P. Hanusa

Vanderbilt University

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Hongming Zhang

University of Alabama

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