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| Journal of Rare Earths |
| Administrated by CAST |
| Sponsored by CSRE and GRINM |
| Published by Elsevier B.V. |
| Editor-in-Chief: XU Guang xian |
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| Journal of Rare Earths |
| (monthly, Since 1990) |
| ISSN 1002-0721 CODEN: JREAE6 |
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| Journal of the Chinese Society of Rare Earths |
| (Bimonthly, Since 1983) |
| ISSN 1000-4343 CODEN: ZXXUE5 |
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Journal of Rare Earths Issue |
| Journal of Rare Earths |
2011 Year Vol.29 NO.1 |
Page: 24-27 |
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| Synthesis and crystal structure of [Y(C5Me4SiMe3){-O(CH2)3CH3}{N(SiHMe2)2}]2 |
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| LUO Yunjie1, FENG Xiaoying1,2 |
| (1. Organometallic Chemistry Laboratory, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China; 2. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China) |
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| Abstract: |
A dimeric yttrium complex [Y(C5Me4SiMe3){-O(CH2)3CH3}{N(SiHMe2)2}]2 (1) was isolated as one of the byproducts from the reaction of Y{N(SiHMe2)3}3(THF)2 with C5Me4HSiMe3 in 1:1.1 molar ratio in toluene at 100 C for 2 d. Complex 1 was characterized by elemental analysis, NMR spectroscopy, FT-IR spectroscopy, and X-ray single crystal structure analysis. X-ray diffractions revealed that complex 1 was a symmetric dimer, and the center metal Y3+ was six-coordinated by one nitrogen atom from the amide group, two bridging oxygen atoms from the O(CH2)3CH3 groups, and one cyclopentadienyl ring in 5-fashion to adopt a distorted tetrahedron geometry. The formation of complex 1 was postulated to be a result from C–O bond cleavage reaction of THF. |
| Key word:yttrium amide complex; ring-opening reaction of THF; synthesis; crystal structure; rare earths |
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