Ion Association Trends in Alkaline Earth-Metal Tetraphenylborates

被引:13
作者
Verma, Abhilasha [1 ]
Guino-o, Marites [1 ]
Gillett-Kunnath, Miriam [1 ]
Teng, Weijie [1 ]
Ruhlandt-Senge, Karin [1 ]
机构
[1] Syracuse Univ, Dept Chem, Ctr Sci & Technol 1 014, Syracuse, NY 13244 USA
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2009年 / 635卷 / 6-7期
基金
美国国家科学基金会;
关键词
Alkaline earth metals; Tetraphenylborate; Ion association; Weakly coordinating anion; RING-OPENING POLYMERIZATION; STRUCTURAL-CHARACTERIZATION; LANTHANIDE COMPLEXES; CRYSTAL-STRUCTURES; CALCIUM INITIATORS; ARYL-CALCIUM; SOLID-STATE; BARIUM; COORDINATION; REACTIVITY;
D O I
10.1002/zaac.200900081
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A family of cationic heavy alkaline earth-metal complexes based oil the weakly coordinating tetraphenylborate anion [BPh4](-) provides unique insight into ion association trends within this family of compounds. The compounds were prepared by protonolysis of the respective alkaline earth-metal bis[bis(trimethylsilyl)]amides M[N(SiMe3)(2)](2)(thf)(2) (M = Ca, Sr, Ba) with ammonium tetraphenylborates [R3NH][BPh4] (R = Me, Et) in various stoichiometric ratios, resulting in the separated ions [M(donor)(n)][BPh4](2) (M = Ca, Sr, Ba; n = number of donors). All compounds but [Ba(hmpa)(6)][BPh4](2) (3c) were characterized using single-crystal Xray diffraction, H-1 and C-13 NMR, IR spectroscopy and melting point.
引用
收藏
页码:903 / 913
页数:11
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