A versatile salt-metathesis route to heteroatomic clusters derived from phosphorus and arsenic Zintl anions

作者：Knapp Caroline M; Large Joseph S; Rees Nicholas H; Goicoechea Jose M^*

来源：Dalton Transactions, 2011, 40(3): 735-745.

DOI：10.1039/c0dt00918k

Salt metathesis reactions between ethylenediamine (en) solutions of the K3E7 (E = P, As) Zintl phases and post-transition metal halides (InCl3, TlCl, SnI2 and PbI2) have yielded a family of novel heteroatomic cluster anions, [In(E-7)(2)](3-), [TlE7](2-) and [E'E-15](3-) (E' = Sn, Pb; E = P, As). Several of these new species have been characterized by single-crystal X-ray diffraction as salts of sequestered potassium cations in [K(2,2,2-crypt)](3)[In(P-7)(2)]center dot 3.5py (1), [K(2,2,2-crypt)](2)[TlP7]center dot py (3), [K(18-crown-6)](2)[TlAs7] (4b), [K(2,2,2-crypt)] 3[E'P15]center dot en (E' = Sn (5), Pb (6)) and [K(2,2,2-crypt)](3)[SnAs15]center dot 2en (7). The presence of all of the cluster anions in solution was confirmed by electrospray mass-spectrometry and by H-1 and P-31{H-1} NMR spectroscopy when pertinent.

• 出版日期2011