Organoaluminum hydroxides supported by β-diketiminato ligands: Synthesis, structural characterization, and reactions

Ying Yang; Thomas Schulz; Michael John; Zhi Yang; Victor Manuel Jiménez-Pérez; Herbert W. Roesky; Prabhuodeyara M. Gurubasavaraj; Dietmar Stalke; Hongqi Ye

doi:10.1021/om700969g

Organoaluminum hydroxides supported by β-diketiminato ligands: Synthesis, structural characterization, and reactions

Ying Yang, Thomas Schulz, Michael John, Zhi Yang, Victor Manuel Jiménez-Pérez, Herbert W. Roesky^*, Prabhuodeyara M. Gurubasavaraj, Dietmar Stalke, Hongqi Ye

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Three β-diketiminato ligands (L¹ = HC[C(Me)N(Ar)] ₂, Ar = 2,4,6-Me₃C₆H₂; L² = HC[C(Me)N(Ar)]₂, Ar = 2,6-iPr₂C₆H ₃; L³ = HC[C(tBu)N(Ar)]₂, Ar = 2,6iPr ₂C₆H₃) were employed to prepare the organoaluminum hydroxides LAlR(OH) (R = Me, Et, Ph, OEt, OSiMe₃) by hydrolysis of the corresponding chlorides in the presence of a N-heterocyclic carbene as HCl scavenger. Reaction of the organoaluminum hydroxide with Cp ₂ZrMe₂ in toluene afforded the heterobimetallic oxide LAlR(μ-O)ZrMeCp₂ under evolution of methane. All compounds were characterized by multinuclear NMR, IR, mass spectrometry, and elemental analysis. The structures of L¹AlPh(OH) (10), L²AlPh(OH) (11), L²AlOEt(OH) (12), L²AlOSiMe₃(OH) (13), and L²AlPh(μ-O)ZrMeCp₂ (17) were determined by single-crystal X-ray diffraction studies. The polymerization of ethylene was studied with compound 17, which exhibits moderate catalytic activity.

Original language	English
Pages (from-to)	769-777
Number of pages	9
Journal	Organometallics
Volume	27
Issue number	4
DOIs	https://doi.org/10.1021/om700969g
Publication status	Published - 25 Feb 2008
Externally published	Yes

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@article{b1ccb3e4a40649ac98ee2b7b93ee0130,

title = "Organoaluminum hydroxides supported by β-diketiminato ligands: Synthesis, structural characterization, and reactions",

abstract = "Three β-diketiminato ligands (L1 = HC[C(Me)N(Ar)] 2, Ar = 2,4,6-Me3C6H2; L2 = HC[C(Me)N(Ar)]2, Ar = 2,6-iPr2C6H 3; L3 = HC[C(tBu)N(Ar)]2, Ar = 2,6iPr 2C6H3) were employed to prepare the organoaluminum hydroxides LAlR(OH) (R = Me, Et, Ph, OEt, OSiMe3) by hydrolysis of the corresponding chlorides in the presence of a N-heterocyclic carbene as HCl scavenger. Reaction of the organoaluminum hydroxide with Cp 2ZrMe2 in toluene afforded the heterobimetallic oxide LAlR(μ-O)ZrMeCp2 under evolution of methane. All compounds were characterized by multinuclear NMR, IR, mass spectrometry, and elemental analysis. The structures of L1AlPh(OH) (10), L2AlPh(OH) (11), L2AlOEt(OH) (12), L2AlOSiMe3(OH) (13), and L2AlPh(μ-O)ZrMeCp2 (17) were determined by single-crystal X-ray diffraction studies. The polymerization of ethylene was studied with compound 17, which exhibits moderate catalytic activity.",

author = "Ying Yang and Thomas Schulz and Michael John and Zhi Yang and Jim{\'e}nez-P{\'e}rez, {Victor Manuel} and Roesky, {Herbert W.} and Gurubasavaraj, {Prabhuodeyara M.} and Dietmar Stalke and Hongqi Ye",

year = "2008",

month = feb,

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doi = "10.1021/om700969g",

language = "English",

volume = "27",

pages = "769--777",

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TY - JOUR

T1 - Organoaluminum hydroxides supported by β-diketiminato ligands

T2 - Synthesis, structural characterization, and reactions

AU - Yang, Ying

AU - Schulz, Thomas

AU - John, Michael

AU - Yang, Zhi

AU - Jiménez-Pérez, Victor Manuel

AU - Roesky, Herbert W.

AU - Gurubasavaraj, Prabhuodeyara M.

AU - Stalke, Dietmar

AU - Ye, Hongqi

PY - 2008/2/25

Y1 - 2008/2/25

N2 - Three β-diketiminato ligands (L1 = HC[C(Me)N(Ar)] 2, Ar = 2,4,6-Me3C6H2; L2 = HC[C(Me)N(Ar)]2, Ar = 2,6-iPr2C6H 3; L3 = HC[C(tBu)N(Ar)]2, Ar = 2,6iPr 2C6H3) were employed to prepare the organoaluminum hydroxides LAlR(OH) (R = Me, Et, Ph, OEt, OSiMe3) by hydrolysis of the corresponding chlorides in the presence of a N-heterocyclic carbene as HCl scavenger. Reaction of the organoaluminum hydroxide with Cp 2ZrMe2 in toluene afforded the heterobimetallic oxide LAlR(μ-O)ZrMeCp2 under evolution of methane. All compounds were characterized by multinuclear NMR, IR, mass spectrometry, and elemental analysis. The structures of L1AlPh(OH) (10), L2AlPh(OH) (11), L2AlOEt(OH) (12), L2AlOSiMe3(OH) (13), and L2AlPh(μ-O)ZrMeCp2 (17) were determined by single-crystal X-ray diffraction studies. The polymerization of ethylene was studied with compound 17, which exhibits moderate catalytic activity.

AB - Three β-diketiminato ligands (L1 = HC[C(Me)N(Ar)] 2, Ar = 2,4,6-Me3C6H2; L2 = HC[C(Me)N(Ar)]2, Ar = 2,6-iPr2C6H 3; L3 = HC[C(tBu)N(Ar)]2, Ar = 2,6iPr 2C6H3) were employed to prepare the organoaluminum hydroxides LAlR(OH) (R = Me, Et, Ph, OEt, OSiMe3) by hydrolysis of the corresponding chlorides in the presence of a N-heterocyclic carbene as HCl scavenger. Reaction of the organoaluminum hydroxide with Cp 2ZrMe2 in toluene afforded the heterobimetallic oxide LAlR(μ-O)ZrMeCp2 under evolution of methane. All compounds were characterized by multinuclear NMR, IR, mass spectrometry, and elemental analysis. The structures of L1AlPh(OH) (10), L2AlPh(OH) (11), L2AlOEt(OH) (12), L2AlOSiMe3(OH) (13), and L2AlPh(μ-O)ZrMeCp2 (17) were determined by single-crystal X-ray diffraction studies. The polymerization of ethylene was studied with compound 17, which exhibits moderate catalytic activity.

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U2 - 10.1021/om700969g

DO - 10.1021/om700969g

M3 - Article

AN - SCOPUS:40549117200

SN - 0276-7333

VL - 27

SP - 769

EP - 777

JO - Organometallics

JF - Organometallics

IS - 4

ER -

Organoaluminum hydroxides supported by β-diketiminato ligands: Synthesis, structural characterization, and reactions

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