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1

Reactions of yttrium-carbon bonds with active hydrogen-containing molecules. A useful synthetic method for permethylyttrocene derivatives

Den Haan, Klaas H., Wielstra, Ytsen., Teuben, Jan H.

Journal:

Organometallics

Year:

1987

Language:

english

File:

PDF, 1.10 MB

english, 1987

2

Cyclopentadiene functionalization versus fulvalene formation in the oxidation of [(.eta.1:.eta.5-C5H4)ZrCp(PMe3)]2: preparation and crystal structures of [(.eta.1:.eta.5-C5H4)ZrCp]2[.mu.-NSiMe3] and [(.eta.1:.eta.5-C5H4)][.mu.-NSiMe3][CpZrSPh][Cp(C5H4SPh)Zr]

Wielstra, Ytsen, Meetsma, Auke, Gambarotta, Sandro, Khan, Saeed

Journal:

Organometallics

Year:

1990

Language:

english

File:

PDF, 571 KB

english, 1990

3

[1,2-Bis(dimethylphosphino)ethane](cyclopentadienyl)methylzirconium(II) [CpZrMe(DMPE)2]: a catalyst precursor for the selective dimerization of ethylene to 1-butene

Wielstra, Ytsen., Gambarotta, Sandro., Chiang, Michael Y.

Journal:

Organometallics

Year:

1988

Language:

english

File:

PDF, 270 KB

english, 1988

4

Binuclear zirconium(III) and zirconium(IV) complexes: mild oxidation of low-valent zirconium as a synthetic pathway to a class of tri- and tetravalent zirconium fulvalene complexes. Molecular structures of [.eta.5:.eta.5-C10H8][CpZrSPh]2, [.eta.5:.eta.5-C10H8][CpZr(CH3)2]2, and [.eta.5:.eta.5-C10H8][CpZr]2[.mu.-S]2

Wielstra, Ytsen, Gambarotta, Sandro, Spek, Anthony L., Smeets, Wilberth J. J.

Journal:

Organometallics

Year:

1990

Language:

english

File:

PDF, 994 KB

english, 1990

5

Monocyclopentadienyl zirconium and hafnium alkyls: synthesis, hydrogen-transfer reactions and catalytic features in the reactivity with .alpha.-olefins. The x-ray structure of CpZr(.eta.4-butadiene)(DMPE)Cl [DMPE = 1,2-bis(dimethylphosphino)ethane]

Wielstra, Ytsen, Gambarotta, Sandro, Spek, Anthony L.

Journal:

Organometallics

Year:

1990

Language:

english

File:

PDF, 859 KB

english, 1990

6

Synthesis of new monomeric zirconium and hafnium hydride butadiene complexes. The x-ray structure of (.eta.5-cyclopentadienyl)(.eta.4-butadiene)[1,2-bis(dimethylphosphino)ethane]hydridozirconium

Wielstra, Ytsen., Meetsma, Auke., Gambarotta, Sandro.

Journal:

Organometallics

Year:

1989

Language:

english

File:

PDF, 292 KB

english, 1989

7

Synthesis of permethylyttrocene alkyl complexes

Klaas H. Den Haan, Ytsen Wielstra, Johan J.W. Eshuis, Jan H. Teuben

Journal:

Journal of Organometallic Chemistry

Year:

1987

Language:

english

File:

PDF, 1.34 MB

english, 1987

8

The elusive zirconium(III)

Ytsen Wielstra, Sandro Gambarotta, Michael Y. Chiang

Journal:

Recueil des Travaux Chimiques des Pays-Bas

Year:

1989

Language:

english

File:

PDF, 660 KB

english, 1989

9

The controversy over the thermal stability of bis(cyclopentadienyl)zirconium(III) halides. Synthesis of Cp'2ZrX (Cp' = Cp, C5H4Me; X = Cl, Br, I) via photolysis of Cp'2Zr(CH2CHMe2)X. The x-ray structures of [(C5H4Me)2Zr(.mu.-I)]2 and [.eta.5:.eta.5-C10H8] [CpZr(.mu.-I)]2

Wielstra, Ytsen., Gambarotta, Sandro., Meetsma, Auke., Spek, Anthony L.

Journal:

Organometallics

Year:

1989

Language:

english

File:

PDF, 719 KB

english, 1989

10

A binuclear zirconium fulvalene tetraallyl complex. The preparation and the molecular structure of [η5 : η5-C10H8][CpZr(η1-CH2CHCH2)(η3-CH2CHCH2)]2

Ytsen Wielstra, Robert Duchateau, Sandro Gambarotta, Corinne Bensimon, Eric Gabe

Journal:

Journal of Organometallic Chemistry

Year:

1991

Language:

english

File:

PDF, 482 KB

english, 1991

11

Carbon-carbon bond formation versus hydrogen transfer in the reaction of alkynes with mono(cyclopentadienyl)zirconium(II) complexes: regioselective dimerization, cocyclotrimerization, and catalytic cyclotrimerization. The preparation and x-ray structures of Cp(dmpe)XZr[(R)C:C(R')C(R):C(R')] [R = CH3; R' = H, CH3; X = Cl, CH3; dmpe = 1,2-bis(dimethylphosphino)ethane] and of CpZr(dmpe)Cl[C.tplbond.C(t-Bu)][CH:CH(t-Bu)]

Wielstra, Ytsen., Gambarotta, Sandro., Meetsma, Auke., De Boer, Jan L., Chiang, Michael Y.

Journal:

Organometallics

Year:

1989

Language:

english

File:

PDF, 927 KB

english, 1989

12

Mono(cyclopentadienyl)zirconium(II) and -hafnium(II) chemistry: synthesis and reactivity of CpM(CO)2(dmpe)Cl [M = Zr, Hf; Cp = cyclopentadienyl; dmpe = 1,2-bis(dimethylphosphino)ethane] via mild-condition carbonylation reaction of CpM(dmpe)2Cl. The crystal structure of CpZr(CO)2(dmpe)Cl

Wielstra, Ytsen., Gambarotta, Sandro., Roedelof, Johannes B., Chiang, Michael Y.

Journal:

Organometallics

Year:

1988

Language:

english

File:

PDF, 842 KB

english, 1988

13

Preparation and x-ray structure of [Cp2Zr(.mu.-I)]2. A thermally unstable zirconium(III) complex

Wielstra, Ytsen., Gambarotta, Sandro., Meetsma, Auke., De Boer, Jan L.

Journal:

Organometallics

Year:

1989

Language:

english

File:

PDF, 283 KB

english, 1989

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