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 language | English |
|---|---|
| Pages (from-to) | 247-254 |
| Number of pages | 8 |
| Journal | Journal of Organometallic Chemistry |
| Volume | 525 |
| Issue number | 1-2 |
| Publication status | Published - 15 Nov 1996 |
Keywords
- Crystal structure
- Cyclopentadienyl
- Lanthanide
- Oxidation
- Rare earth
- Ytterbium
Cite this
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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 journal › Article › Research › peer-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
UR - http://www.scopus.com/inward/record.url?scp=0030588824&partnerID=8YFLogxK
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 -