Synthesis, structure and catalytic activity comparison of tris- and tetracoordinated lanthanide amides
Mei-Hua Xie
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorXin-Yuan Liu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorShao-Wu Wang
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
Search for more papers by this authorLi Liu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorYong-Yong Wu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorGao-Sheng Yang
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorShuang-Liu Zhou
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorEn-Hong Sheng
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorZi-Xiang Huang
Fujian Institute of Research on the Structure of Matters. Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
Search for more papers by this authorMei-Hua Xie
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorXin-Yuan Liu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorShao-Wu Wang
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
Search for more papers by this authorLi Liu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorYong-Yong Wu
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorGao-Sheng Yang
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorShuang-Liu Zhou
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorEn-Hong Sheng
Institute of Organic Chemistry, School of Chemistry and Material Science, Anhui Normal University, Wuhu Anhui 241000, China
Search for more papers by this authorZi-Xiang Huang
Fujian Institute of Research on the Structure of Matters. Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
Search for more papers by this authorAbstract
Tetracoordinated lanthanide amides [(Me3Si)2N]3Ln (μ-CI)Li(THF)3 (Ln=La (1), Pr (2)) were synthesized by the reaction of anhydrous lanthanide(III) chlorides LnCl3 (Ln=La, Pr) with 3 equiv. of lithium bis(trimethyl-silyl)amide (Me3Si)2NLi in THF, followed by recrystallization from toluene. Sublimation of 1 and 2 afforded the triscoordinate lanthanide amides [(Me3Si)2N]3Ln (Ln=La, Pr). The crystal structure of 2 was determined by X-ray diffraction analysis. The catalytic activity studies show that the tetracoordinate amides can be used as single-component MMA (methyl methacrylate) polymerization catalysts, while the triscoordinate amides showed poor activity on h4MA polymerization under the same conditions.
References
- 1(a) Edelmann, F. T. In Comprehensive Organometallic Chemisny II, Eds: E. W. Abel; F. G. A. Stone; G. Wilkinson, Elsevier Science Ltd., Oxford, 1995. (b) Evans, W. J. Polyhedron 1987, 6, 803.
- 2(a)
Britovsek, G. J. P.;
Gibson, V. C.;
Wass, D. F.
Angew. Chem., Int. Ed.
1999,
38, 428.
10.1002/(SICI)1521-3773(19990215)38:4<428::AID-ANIE428>3.0.CO;2-3 CAS PubMed Web of Science® Google Scholar(b) Ittel, S. D.; Johnson, L. K. Chem. Rev. 2000, 100, 1169. (c) O'Shaughnessy, P. N.; Knight, P. D.; Morton, C.; Gilles-pie, K. M.; Scott, P. Chem. Commun. 2003, 1770. (d) Roesky, P. W.; Gamer, M. T.; Puchner, M.; Greiner, A. Eur. J. Chem. 2002, 41, 3554.
- 3
Kempe, R.
Angew. Chem., Int. Ed
2000,
39, 468.
10.1002/(SICI)1521-3773(20000204)39:3<468::AID-ANIE468>3.0.CO;2-G CAS PubMed Web of Science® Google Scholar
- 4(a) Bradley, D. C.; Ghotra, J. S.; Hart, F. A. J. Chem Soc., Dalton, Trans. 1973, 1021. (b) Eller, P. G.; Bradley, D. C.; Hursthouse, M. B.; Meek, D. W. Coord. Chem Rev. 1977, 24, 1.
- 5(a)
Berberich, H.;
Roesky, P. W.
Angew. Chem, Int. Ed.
1998,
37, 1569.
10.1002/(SICI)1521-3773(19980619)37:11<1569::AID-ANIE1569>3.0.CO;2-C PubMed Web of Science® Google Scholar(b) Bürgstein, M. R.; Berbench, H.; Reosky, P. W. Eur. -J. Chem 2001, 7, 3078.
- 6 Hultsch, K. C.; Spaniol, T. P.; Okuda, J. Organometallics 1997, 16, 4845.
- 7 Tian, S.; Arredondo, V. M.; Stem, C. L.; Marks, T. J. Organometallics 1999, 18, 2568.
- 8 Ryu, J. S.; Marks, T. J.; McDonald, F. E. Org. Latt. 2002, 3, 3091.
- 9 Arredondo, V. M.; McDonald, F. E.; Marks, T. J. Organometallics 1999, 18, 1949.
- 10(a) Hou, Z.; Koinuni, T.; Nishiura, M.; Wakatsuki, Y. Organometallics 2001, 20, 3323. (b) Qian, C. T.; Nie, W. L.; Sun, J. Organometallics 2000, 19, 4134.
- 11 Zhou, S. L.; Wang, S.; Yang, G. S.; Liu, X. Y.; Shcng, E. H.; Zhang, K. H.; Cheng, L.; Huang, Z. X. Polyhedron 2003, 22, 1019.
- 12 Taylor, M. D.; Carter, C. P. J. Inorg. Nucl. Chem 1962, 24, 387.
- 13
Bovey, F. A.;
Mirau, P. A.
NMR of polymers, Academic press, San Diego, California,
1996.
10.1016/B978-012119765-0/50001-9 Google Scholar
- 14 Edelmann, F. T.; Steiner, A.; Stake, D.; Gdje, J. W.; Jagner, S.; Håkansson, M. Polyhedron 1994, 13, 539.
- 15 Anderson, R. A.; Templeton, D. H.; Zalkin, A. Inorg. Chem 1978, 17, 2317.
- 16 Ghotra, J. S.; Hursthouse, M. B.; Welch, A. J. J. Chem Soc., Chem. Commun. 1973, 1.
- 17 Tusk O.; Rees, W. S. Inorg. Chem 2001, 40, 1751.
- 18 Yasuda, Y.; Ihara, E. Macromol. Chem Phys. 1995, 196, 2417.
