Controlled Stoichiometric Incorporation of Ti(IV) into a Zr(IV) Pinacolate
1998; American Chemical Society; Volume: 37; Issue: 22 Linguagem: Inglês
10.1021/ic980714z
ISSN1520-510X
AutoresC.A. Zechmann, John C. Huffman, Kirsten Folting, Kenneth G. Caulton,
Tópico(s)Organometallic Complex Synthesis and Catalysis
ResumoThe first Ti/Zr mixed-metal alkoxide was synthesized by the reaction of equimolar amounts of Ti(OiPr)4 and Zr2(OCMe2CMe2O)2(OCMe2CMe2OH)4 to give TiZr2(OCMe2CMe2O)4(OCMe2CMe2OH)2(OiPr)2. The 1:1 (Ti:Zr) mixed-metal product was obtained by reaction of Ti(OiPr)4 and Zr2(OCMe2CMe2O)2(OCMe2CMe2OH)4 (2:1 mole ratio, respectively) yielding Ti2Zr2(OCMe2CMe2O)6(OiPr)4. Both products were characterized by X-ray diffraction. Crystallographic data (P21/c at −164 °C) for TiZr2(OCMe2OCMe2O)4(OCMe2CMe2OH)2(OiPr)2: a = 12.926(3) Å, b = 17.727(4) Å, c = 23.144(5) Å, β = 102.30(1)° with Z = 4. Crystallographic data (P1̄ at −170 °C) for Ti2Zr2(OCMe2CMe2O)6(OiPr)4·2CHCl3: a = 10.760(1) Å, b = 18.202(3) Å, c = 9.827(1) Å, β = 166.53(1)° with Z = 1.
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