Remarkably stable titanium complexes containing terminal alkylidene, phosphinidene, and imide functionalities

Organometallics

Volumn 24, Issue 7, 2005, Pages 1390-1393

  Bailey, Brad C ^a   Huffman, John C ^a   Mindiola, Daniel J ^a   Weng, Wei ^b   Ozerov, Oleg V ^b  

^a INDIANA UNIVERSITY   (United States)

^b BRANDEIS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALKYLIDENE; CROSS-METATHESIS; IMIDES; TITANIUM COMPLEXES;

CHEMICAL BONDS; COMPLEXATION; ELECTRONS; NITROGEN; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; OXIDATION; TITANIUM COMPOUNDS;

ORGANOMETALLICS;

EID: 16244398698     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om0490583     Document Type: Article

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32. P-P values have been reported, (a) Fan, L.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 326-328. (b) Ozerov, O. V.; Guo, C.; Fan, L.; Foxman, B. M. Organometallics 2004, 23, 5573-5580. (c) Ozerov, O. V.; Guo, C.; Papkov, V. A.; Foxman, B. M. J. Am. Chem. Soc. 2004, 126, 4792-4793. (d) Fan, L.; Yang, L.; Guo, C.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 4778-4787. The PNP relative bis(2-diphenylphosphino)amide has also been reported: (e) Liang, L.-C.; Lin, J.-M.; Hung, C.-H. Organometallics 2003, 22, 3007-3009.
33. P-P values have been reported, (a) Fan, L.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 326-328. (b) Ozerov, O. V.; Guo, C.; Fan, L.; Foxman, B. M. Organometallics 2004, 23, 5573-5580. (c) Ozerov, O. V.; Guo, C.; Papkov, V. A.; Foxman, B. M. J. Am. Chem. Soc. 2004, 126, 4792-4793. (d) Fan, L.; Yang, L.; Guo, C.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 4778-4787. The PNP relative bis(2-diphenylphosphino)amide has also been reported: (e) Liang, L.-C.; Lin, J.-M.; Hung, C.-H. Organometallics 2003, 22, 3007-3009.
34. P-P values have been reported, (a) Fan, L.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 326-328. (b) Ozerov, O. V.; Guo, C.; Fan, L.; Foxman, B. M. Organometallics 2004, 23, 5573-5580. (c) Ozerov, O. V.; Guo, C.; Papkov, V. A.; Foxman, B. M. J. Am. Chem. Soc. 2004, 126, 4792-4793. (d) Fan, L.; Yang, L.; Guo, C.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 4778-4787. The PNP relative bis(2-diphenylphosphino)amide has also been reported: (e) Liang, L.-C.; Lin, J.-M.; Hung, C.-H. Organometallics 2003, 22, 3007-3009.
35. P-P values have been reported, (a) Fan, L.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 326-328. (b) Ozerov, O. V.; Guo, C.; Fan, L.; Foxman, B. M. Organometallics 2004, 23, 5573-5580. (c) Ozerov, O. V.; Guo, C.; Papkov, V. A.; Foxman, B. M. J. Am. Chem. Soc. 2004, 126, 4792-4793. (d) Fan, L.; Yang, L.; Guo, C.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 4778-4787. The PNP relative bis(2-diphenylphosphino)amide has also been reported: (e) Liang, L.-C.; Lin, J.-M.; Hung, C.-H. Organometallics 2003, 22, 3007-3009.
36. P-P values have been reported, (a) Fan, L.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 326-328. (b) Ozerov, O. V.; Guo, C.; Fan, L.; Foxman, B. M. Organometallics 2004, 23, 5573-5580. (c) Ozerov, O. V.; Guo, C.; Papkov, V. A.; Foxman, B. M. J. Am. Chem. Soc. 2004, 126, 4792-4793. (d) Fan, L.; Yang, L.; Guo, C.; Foxman, B. M.; Ozerov, O. V. Organometallics 2004, 23, 4778-4787. The PNP relative bis(2-diphenylphosphino)amide has also been reported: (e) Liang, L.-C.; Lin, J.-M.; Hung, C.-H. Organometallics 2003, 22, 3007-3009.
37. See the Supporting Information for complete experimental, crystallographic, and DFT calculation details.
38. (a) Crabtree, R. H. The Organometallic Chemistry of the Transition Metals, 3rd ed.; Wiley-Interscience: New York, 2001; pp 260-262.
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43. int = 0.2052). Final R1(I > 2σ(I)) = 0.0698 and wR2(all data) = 0.1312. All hydrogen atoms were located in subsequent Fourier maps. Attempts to refine all hydrogen atoms were not successful. Although all were refined to qualitatively correct positions, there were several in which the C-H distance was as large as 1.26 Å and angles were similarly distorted. For this reason all hydrogen atoms with the exception of that on C(31) were placed in ideal positions and refined as riding atoms with relative isotropic displacement parameters. The hydrogen on C(31) was allowed to vary isotropically to verify its correct assignment.
44. 1/2 pentane solvent molecules in the asymmetric cell. Two regions of disorder indicated that solvent was present in the cell, and the solvent was modeled using partial-occupancy on carbon atoms. One of the two sites resulted in a reasonable model, while the other (located at a center of inversion at 1/2, 1/2, 1/2) was not readily modeled. All non-hydrogen atoms were refined with anisotropic displacement parameters. All nonsolvent hydrogen atoms were located in subsequent Fourier maps and included as isotropic contributors in the final cycles of refinement.
45. 31P NMR spectroscopic data.