Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes

Frederick M. Hartner; Susan M. Clift; Jeffrey Schwartz; Thomas H. Tulip

doi:10.1021/om00149a035

Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes

Frederick M. Hartner, Susan M. Clift, Jeffrey Schwartz, Thomas H. Tulip

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Abstract

Examples of the title complexes have been prepared through two complementary routes. Spectral analysis indicate that they are best formulated as Zr analogues of Tebbe's reagent, Cp₂TiCH₂AlClMe₂. Single-crystal X-ray diffraction analysis of Cp₂ZrCH(CH₂-t-Bu)AlCl(i-Bu)₂at -100 °C confirms this result: space group C ⁵₂h—F2/n (No. 14), a = 19.779 (3) A, b = 14.055 (3) A, c = 9.086 (2) A, β= 90.12 (2)°, V = 2526 (2) A, and Z = 4. The final conventional and weighted agreement indices on F₀for 4306 reflections with F₀ ²> 3σ(f02) are 0.035 and 0.040. Both Zr and A1 show pseudotetrahedral coordination. The Zr—C bond length, 2.158 (2) A, indicates significant Zr=C bonding.

Original language	English (US)
Pages (from-to)	1346-1350
Number of pages	5
Journal	Organometallics
Volume	6
Issue number	6
DOIs	https://doi.org/10.1021/om00149a035
State	Published - Jun 1 1987

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{3677d2c488e14ace94cb148cd4bb3bb6,

title = "Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes",

abstract = "Examples of the title complexes have been prepared through two complementary routes. Spectral analysis indicate that they are best formulated as Zr analogues of Tebbe's reagent, Cp2TiCH2AlClMe2. Single-crystal X-ray diffraction analysis of Cp2ZrCH(CH2-t-Bu)AlCl(i-Bu)2at -100 °C confirms this result: space group C 52h—F2/n (No. 14), a = 19.779 (3) A, b = 14.055 (3) A, c = 9.086 (2) A, β= 90.12 (2)°, V = 2526 (2) A, and Z = 4. The final conventional and weighted agreement indices on F0for 4306 reflections with F0 2> 3σ(f02) are 0.035 and 0.040. Both Zr and A1 show pseudotetrahedral coordination. The Zr—C bond length, 2.158 (2) A, indicates significant Zr=C bonding.",

author = "Hartner, {Frederick M.} and Clift, {Susan M.} and Jeffrey Schwartz and Tulip, {Thomas H.}",

year = "1987",

month = jun,

day = "1",

doi = "10.1021/om00149a035",

language = "English (US)",

volume = "6",

pages = "1346--1350",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes

AU - Hartner, Frederick M.

AU - Clift, Susan M.

AU - Schwartz, Jeffrey

AU - Tulip, Thomas H.

PY - 1987/6/1

Y1 - 1987/6/1

N2 - Examples of the title complexes have been prepared through two complementary routes. Spectral analysis indicate that they are best formulated as Zr analogues of Tebbe's reagent, Cp2TiCH2AlClMe2. Single-crystal X-ray diffraction analysis of Cp2ZrCH(CH2-t-Bu)AlCl(i-Bu)2at -100 °C confirms this result: space group C 52h—F2/n (No. 14), a = 19.779 (3) A, b = 14.055 (3) A, c = 9.086 (2) A, β= 90.12 (2)°, V = 2526 (2) A, and Z = 4. The final conventional and weighted agreement indices on F0for 4306 reflections with F0 2> 3σ(f02) are 0.035 and 0.040. Both Zr and A1 show pseudotetrahedral coordination. The Zr—C bond length, 2.158 (2) A, indicates significant Zr=C bonding.

AB - Examples of the title complexes have been prepared through two complementary routes. Spectral analysis indicate that they are best formulated as Zr analogues of Tebbe's reagent, Cp2TiCH2AlClMe2. Single-crystal X-ray diffraction analysis of Cp2ZrCH(CH2-t-Bu)AlCl(i-Bu)2at -100 °C confirms this result: space group C 52h—F2/n (No. 14), a = 19.779 (3) A, b = 14.055 (3) A, c = 9.086 (2) A, β= 90.12 (2)°, V = 2526 (2) A, and Z = 4. The final conventional and weighted agreement indices on F0for 4306 reflections with F0 2> 3σ(f02) are 0.035 and 0.040. Both Zr and A1 show pseudotetrahedral coordination. The Zr—C bond length, 2.158 (2) A, indicates significant Zr=C bonding.

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DO - 10.1021/om00149a035

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JO - Organometallics

JF - Organometallics

IS - 6

ER -

Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes

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