Issue 8, 2005
From the journal:

Dalton Transactions

Synthesis and characterization of mono β-diketiminatosamarium amides and hydrocarbyls†

Chunming Cui,ab   Alexandr Shafir,ab   Joseph A. R. Schmidt,‡ab   Allen G. Oliverab  and  John Arnold*ab  

* Corresponding authors

a Department of Chemistry, University of California, Berkeley, CA, USA

b Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA

Abstract

Reaction of SmCl3 with 1 eq of KL (L = [DippNC(Me)CHC(Me)NDipp]; Dipp = 2,6-i-Pr2C6H3) in THF afforded the dimeric samarium dichloride LSmCl2(THF)Cl2SmL (1) in high yield. Reactions of 1 with NaN(SiMe3)2, KNHAr (Ar = 2,4,6-t-Bu3C6H2), KBHEt3, and KCp* (Cp* = C5Me5) yielded various new complexes: LSmClN(SiMe3)2 (2), LSm[N(SiMe3)2]2 (3), LSmNHAr(HBEt3) (4), LSm(NHAr)2 (5), and LSmCp*Cl (6). Reaction of 1 with one eq of NaN(SiMe3)2 followed by treatment with excess AlMe3 afforded a unique bimetallic samarium tetramer Cl3L2Sm2(AlMe4)2Sm2L2Cl3 (7). Reaction of 6 with LiMe or LiCH2SiMe3 afforded LSmCp*Me (8) and LSmCp*CH2SiMe3 (9) in excellent yield. Methyl abstraction from 8 with B(C6F5)3 in toluene yielded the cationic borate species (LSmCp*)[MeB(C6F5)3] (10). Molecular structures of 1–7 and 9 were determined by X-ray single crystal analysis.

Graphical abstract: Synthesis and characterization of mono β-diketiminatosamarium amides and hydrocarbyls

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Article information

DOI
https://doi.org/10.1039/B501437A
Article type
Paper
Submitted
08 Jul 2004
Accepted
24 Feb 2005
First published
10 Mar 2005

Dalton Trans., 2005, 1387-1393

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Synthesis and characterization of mono β-diketiminatosamarium amides and hydrocarbyls

C. Cui, A. Shafir, J. A. R. Schmidt, A. G. Oliver and J. Arnold, Dalton Trans., 2005, 1387 DOI: 10.1039/B501437A

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