Organolanthanoids XX . The synthesis of YbCp2Cl(THF)0.5 (Cp = cyclopentadienyl; THF = tetrahydrofuran), YbCp2X(THF) (X = Br or I), and (YbCp2X)2 (X = Cl, Br, or I) by oxidation of YbCp2 with metal and organic halides

Glen B. Deacon, Stuart C. Harris, Gerd Meyer, Dirk Stellfeldt, Dallas L. Wilkinson, Gerd Zelesny

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Abstract

Reaction of YbCp2(DME) (Cp = cyclopentadienyl; DME = 1,2-dimethoxyethane) with MCl2 (M = Hg, Cd, Zn, Pb, Sn, Cu, Pd, or Co) or MCl (M = Ag, Cu or Tl) in tetrahydrofuran (THF) gives the metal M and YbCp2Cl(THF)0.5, generally in excellent yield, with small amounts of TlCp and CoCp2 also detected from TlCl and CoCl2 respectively. Similarly, YbCp2X(THF) (X = Br or I) and YbCp2Cl(DME)0.5 have been prepared in good yields by analogous oxidation with suitable mercury(II) halides. However YbCp2(DME) and FeCl3 yield ferrocene. In simpler syntheses, YbCp2X(THF)n (X = Cl, n = 0.5; X = Br or I, n = 1) have been obtained by reactions of YbCp2(DME) with C2Cl6 or (CH2X)2 (X = Br or I) in THF, and (YbCp2X)2 by analogous reactions of unsolvated YbCp2 in petroleum ether. The X-ray crystal structure of YbCp2I(THF) (monoclinic, P21/c, a = 8.147(1), b = 13.788(2), c = 14.149(3)Å, β = 105.56(1)°, Z = 4, R = 0.042, for 2324 observed data) shows the complex to be monomeric with formal eight coordination for ytterbium, and with a pseudo-tetrahedral array of the centroids of the Cp rings, oxygen, and iodine ( 2.565 Å, Yb-O 2.311(5)Å, Yb-I 2.9316(7)Å).

Original languageEnglish
Pages (from-to)247-254
Number of pages8
JournalJournal of Organometallic Chemistry
Volume525
Issue number1-2
Publication statusPublished - 15 Nov 1996

Keywords

  • Crystal structure
  • Cyclopentadienyl
  • Lanthanide
  • Oxidation
  • Rare earth
  • Ytterbium

Cite this

@article{967739708f1b41998c4464240a7ffb66,
title = "Organolanthanoids XX . The synthesis of YbCp2Cl(THF)0.5 (Cp = cyclopentadienyl; THF = tetrahydrofuran), YbCp2X(THF) (X = Br or I), and (YbCp2X)2 (X = Cl, Br, or I) by oxidation of YbCp2 with metal and organic halides",
abstract = "Reaction of YbCp2(DME) (Cp = cyclopentadienyl; DME = 1,2-dimethoxyethane) with MCl2 (M = Hg, Cd, Zn, Pb, Sn, Cu, Pd, or Co) or MCl (M = Ag, Cu or Tl) in tetrahydrofuran (THF) gives the metal M and YbCp2Cl(THF)0.5, generally in excellent yield, with small amounts of TlCp and CoCp2 also detected from TlCl and CoCl2 respectively. Similarly, YbCp2X(THF) (X = Br or I) and YbCp2Cl(DME)0.5 have been prepared in good yields by analogous oxidation with suitable mercury(II) halides. However YbCp2(DME) and FeCl3 yield ferrocene. In simpler syntheses, YbCp2X(THF)n (X = Cl, n = 0.5; X = Br or I, n = 1) have been obtained by reactions of YbCp2(DME) with C2Cl6 or (CH2X)2 (X = Br or I) in THF, and (YbCp2X)2 by analogous reactions of unsolvated YbCp2 in petroleum ether. The X-ray crystal structure of YbCp2I(THF) (monoclinic, P21/c, a = 8.147(1), b = 13.788(2), c = 14.149(3){\AA}, β = 105.56(1)°, Z = 4, R = 0.042, for 2324 observed data) shows the complex to be monomeric with formal eight coordination for ytterbium, and with a pseudo-tetrahedral array of the centroids of the Cp rings, oxygen, and iodine ( 2.565 {\AA}, Yb-O 2.311(5){\AA}, Yb-I 2.9316(7){\AA}).",
keywords = "Crystal structure, Cyclopentadienyl, Lanthanide, Oxidation, Rare earth, Ytterbium",
author = "Deacon, {Glen B.} and Harris, {Stuart C.} and Gerd Meyer and Dirk Stellfeldt and Wilkinson, {Dallas L.} and Gerd Zelesny",
year = "1996",
month = "11",
day = "15",
language = "English",
volume = "525",
pages = "247--254",
journal = "Journal of Organometallic Chemistry",
issn = "0022-328X",
publisher = "Elsevier",
number = "1-2",

}

Organolanthanoids XX . The synthesis of YbCp2Cl(THF)0.5 (Cp = cyclopentadienyl; THF = tetrahydrofuran), YbCp2X(THF) (X = Br or I), and (YbCp2X)2 (X = Cl, Br, or I) by oxidation of YbCp2 with metal and organic halides. / Deacon, Glen B.; Harris, Stuart C.; Meyer, Gerd; Stellfeldt, Dirk; Wilkinson, Dallas L.; Zelesny, Gerd.

In: Journal of Organometallic Chemistry, Vol. 525, No. 1-2, 15.11.1996, p. 247-254.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Organolanthanoids XX . The synthesis of YbCp2Cl(THF)0.5 (Cp = cyclopentadienyl; THF = tetrahydrofuran), YbCp2X(THF) (X = Br or I), and (YbCp2X)2 (X = Cl, Br, or I) by oxidation of YbCp2 with metal and organic halides

AU - Deacon, Glen B.

AU - Harris, Stuart C.

AU - Meyer, Gerd

AU - Stellfeldt, Dirk

AU - Wilkinson, Dallas L.

AU - Zelesny, Gerd

PY - 1996/11/15

Y1 - 1996/11/15

N2 - Reaction of YbCp2(DME) (Cp = cyclopentadienyl; DME = 1,2-dimethoxyethane) with MCl2 (M = Hg, Cd, Zn, Pb, Sn, Cu, Pd, or Co) or MCl (M = Ag, Cu or Tl) in tetrahydrofuran (THF) gives the metal M and YbCp2Cl(THF)0.5, generally in excellent yield, with small amounts of TlCp and CoCp2 also detected from TlCl and CoCl2 respectively. Similarly, YbCp2X(THF) (X = Br or I) and YbCp2Cl(DME)0.5 have been prepared in good yields by analogous oxidation with suitable mercury(II) halides. However YbCp2(DME) and FeCl3 yield ferrocene. In simpler syntheses, YbCp2X(THF)n (X = Cl, n = 0.5; X = Br or I, n = 1) have been obtained by reactions of YbCp2(DME) with C2Cl6 or (CH2X)2 (X = Br or I) in THF, and (YbCp2X)2 by analogous reactions of unsolvated YbCp2 in petroleum ether. The X-ray crystal structure of YbCp2I(THF) (monoclinic, P21/c, a = 8.147(1), b = 13.788(2), c = 14.149(3)Å, β = 105.56(1)°, Z = 4, R = 0.042, for 2324 observed data) shows the complex to be monomeric with formal eight coordination for ytterbium, and with a pseudo-tetrahedral array of the centroids of the Cp rings, oxygen, and iodine ( 2.565 Å, Yb-O 2.311(5)Å, Yb-I 2.9316(7)Å).

AB - Reaction of YbCp2(DME) (Cp = cyclopentadienyl; DME = 1,2-dimethoxyethane) with MCl2 (M = Hg, Cd, Zn, Pb, Sn, Cu, Pd, or Co) or MCl (M = Ag, Cu or Tl) in tetrahydrofuran (THF) gives the metal M and YbCp2Cl(THF)0.5, generally in excellent yield, with small amounts of TlCp and CoCp2 also detected from TlCl and CoCl2 respectively. Similarly, YbCp2X(THF) (X = Br or I) and YbCp2Cl(DME)0.5 have been prepared in good yields by analogous oxidation with suitable mercury(II) halides. However YbCp2(DME) and FeCl3 yield ferrocene. In simpler syntheses, YbCp2X(THF)n (X = Cl, n = 0.5; X = Br or I, n = 1) have been obtained by reactions of YbCp2(DME) with C2Cl6 or (CH2X)2 (X = Br or I) in THF, and (YbCp2X)2 by analogous reactions of unsolvated YbCp2 in petroleum ether. The X-ray crystal structure of YbCp2I(THF) (monoclinic, P21/c, a = 8.147(1), b = 13.788(2), c = 14.149(3)Å, β = 105.56(1)°, Z = 4, R = 0.042, for 2324 observed data) shows the complex to be monomeric with formal eight coordination for ytterbium, and with a pseudo-tetrahedral array of the centroids of the Cp rings, oxygen, and iodine ( 2.565 Å, Yb-O 2.311(5)Å, Yb-I 2.9316(7)Å).

KW - Crystal structure

KW - Cyclopentadienyl

KW - Lanthanide

KW - Oxidation

KW - Rare earth

KW - Ytterbium

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M3 - Article

AN - SCOPUS:0030588824

VL - 525

SP - 247

EP - 254

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

IS - 1-2

ER -