Citation: CHEN Run-Hai, WANG Ping, LIU Qing, DONG Yun-Hui, LI Yue-Yun. Homoleptic Divalent Lanthanide “Open-Metallocenes” —Bis(2,4-^tBu₂-pentadienyl)Sm and Yb Complexes[J]. Chinese Journal of Inorganic Chemistry, ;2015, (6): 1239-1244. doi: 10.11862/CJIC.2015.169 shu

Homoleptic Divalent Lanthanide “Open-Metallocenes” —Bis(2,4-^tBu₂-pentadienyl)Sm and Yb Complexes

1.
School of Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China

Corresponding author: LI Yue-Yun,
Received Date: 15 February 2015
Available Online: 20 April 2015
Fund Project: 国国家自然科学基金(No.21405095) (No.21405095)山东省高等学校科技计划项目(No.J14LC09)资助项目。 (No.J14LC09)

The bis(2,4-^tBu₂-pentadienyl)lanthanide complexes (η⁵-Pdl')₂Yb(THF) (1) and (η⁵-Pdl')₂Sm(DME) (2) were successfully prepared in high yield by direct salt metathesis between LnI₂ and 2,4-di-butyl-pentadienyl potassium(K(Pdl')). Complexes 1 and 2 could also be obtained smoothly from the reaction of LnCl₃ and K(Pdl') through oxidation-reduction reaction. These two compounds were characterized and the X-ray single crystal analysis revealed a predominantly η⁵-pentadienyl-metal bonding. Both two compounds could initiate ring-opening polymerization of ε-caprolactone rapidly at room temperature and led to narrow polydispersities with high activity.
- Samarium;Ytterbium;pentadienyl;polymerization;ε-caprolactone
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Homoleptic Divalent Lanthanide “Open-Metallocenes” —Bis(2,4-tBu2-pentadienyl)Sm and Yb Complexes

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com

Homoleptic Divalent Lanthanide “Open-Metallocenes” —Bis(2,4-^tBu₂-pentadienyl)Sm and Yb Complexes