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Volumn 28, Issue 5, 2009, Pages 1469-1475

Aluminum and Yttrium complexes of an unsymmetrical Mixed Fluorous A Ikoxy/Phenoxy-Diimino ligand: synthesis, structure, and Ring-Opening polymerization catalysis

Author keywords

[No Author keywords available]

Indexed keywords

CALCULATED VALUES; COORDINATION CHEMISTRIES; FIVE-COORDINATED; FLUOROUS; HIGH YIELDS; ISOTACTIC; LACTIDE; NMR SPECTROSCOPIES; OCTAHEDRAL GEOMETRIES; RING-OPENING POLYMERIZATIONS; ROOM TEMPERATURES; SCHIFF-BASE LIGANDS; SINGLE-CRYSTAL X-RAY DIFFRACTIONS; UNSYMMETRICAL; YTTRIUM COMPLEXES;

EID: 64749087264     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om8010273     Document Type: Article
Times cited : (127)

References (106)
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    • For salalen-type derivatives, see: a
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    • 2OH:
    • 2OH:
  • 32
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    • For application of this concept to fluorous (di)alkoxy-(di)amino complexes of Y, Zr. and Al, see: (a) Lavanant, L.; Chou, T.-Y.; Chi, Y.; Lehmann, C. W.; Toupet, L.; Carpentier, J.-F. Organometallics 2004, 23, 5450.
    • For application of this concept to fluorous (di)alkoxy-(di)amino complexes of Y, Zr. and Al, see: (a) Lavanant, L.; Chou, T.-Y.; Chi, Y.; Lehmann, C. W.; Toupet, L.; Carpentier, J.-F. Organometallics 2004, 23, 5450.
  • 35
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    • For selected examples of early transition metal complexes bearing fluorous alkoxide ligands: a
    • For selected examples of early transition metal complexes bearing fluorous alkoxide ligands: (a) Bradley, D. C; Chudszynska, H.; Hursthouse, M. B.; Motevalli, M. Polyhedron 1994, 12, 1907.
    • (1994) Polyhedron , vol.12 , pp. 1907
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    • The T value ranges from 0 (perfectly square pyramidal) to 1 (perfectly trigonal bipyramidal). Alpha and beta arc the angles that are opposite each other in the xy plane (with the Al-X group oriented along the z-axis). Addison. A. W.; Rao, T. N.; Reedjik, J.; van Rijn, J.; Verschoor, G. C. J. Chem. Soc., Dalton Trans. 1984, 1349.
    • The T value ranges from 0 (perfectly square pyramidal) to 1 (perfectly trigonal bipyramidal). Alpha and beta arc the angles that are opposite each other in the xy plane (with the Al-X group oriented along the z-axis). Addison. A. W.; Rao, T. N.; Reedjik, J.; van Rijn, J.; Verschoor, G. C. J. Chem. Soc., Dalton Trans. 1984, 1349.
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    • For examples of ROP of lactide and β-butyrolactone with group 3 metal complexes, see: (a) Aubrecht. K. B, Chang. K, Hillmyer. M. A, Tolman, W. B. J. Polym. Sci. A: Polym. Chem. 2001, 39, 284
    • For examples of ROP of lactide and β-butyrolactone with group 3 metal complexes, see: (a) Aubrecht. K. B.; Chang. K.; Hillmyer. M. A.; Tolman, W. B. J. Polym. Sci. A: Polym. Chem. 2001, 39, 284.
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    • See also refs 16b,c
    • See also refs 16b,c.
  • 84
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    • For examples of ROP of lactide with discrete Al alkoxide complexes, see: (a) Spassky. N, Wisniewski, M, Pluta, C, Le Borgne, A. Macromol. Chem. Phys. 1996, 197, 2627
    • For examples of ROP of lactide with discrete Al alkoxide complexes, see: (a) Spassky. N.; Wisniewski, M.: Pluta, C.; Le Borgne, A. Macromol. Chem. Phys. 1996, 197, 2627.
  • 96
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    • meso is the probability of forming a new mesolinkage. See: Kasperczyk, J. E. Macromolecules 1995, 28, 3937.
    • meso is the probability of forming a new mesolinkage. See: Kasperczyk, J. E. Macromolecules 1995, 28, 3937.
  • 102
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    • It is noteworthy that MALDI-TOF-MS analysis of the PLA produced with the 7liPrOH (1:1) system revealed the presence of cyclic oligomers, indicating that intramolecular transesterification (back-biting) does occur in this system; see ref 22a
    • It is noteworthy that MALDI-TOF-MS analysis of the PLA produced with the 7liPrOH (1:1) system revealed the presence of cyclic oligomers, indicating that intramolecular transesterification ("back-biting") does occur in this system; see ref 22a.
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    • Program for the Refinement of Crystal Structures; University of Goettingen: Germany
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