Mixed tetrahedral Zintl clusters: single crystal structure determination of [Si(4-x)Ge(x)]4-, [(MesCu)2(Si(4-x)Ge(x))]4-, and the 29Si MAS NMR Spectra of A4Si2Ge2 (A=K, Rb)
Chemistry. 2011 Nov 25;17(48):13391-4.
doi: 10.1002/chem.201102095.
Epub 2011 Oct 27.