Triel elements

Remarks on the crystal chemistry of the triel elements (Al, Ga, In, Tl). Tables 5.65a, 5.65b and 5.65c summarizes the crystal data of typical phases pertaining to the alloys of the 13th group. A few specific comments are in the following. 

Where might one find new AC/QC materials Our earlier extensions of the p-element components in Zintl-type compounds to the triels (Al, Ga, In, Tl) (beyond the so-called Zintl boundary ) as well as the inclusions of late transition metals had already given us some significant glimpses of new and appropriate chemistry and structures [46,51]. In addition, some examples were already in the literature for Ga [44], In contrast, the anion or intermetallic chemistry of aluminum [45] stands apart from that of the three heavier group members (Ga, In, and Tl) and will not be considered here significantly. 

Trimethyl- (TriML) and triethyllead (TriEL) compounds were obtained from Alfa products (Johnson Matthey) and their purity was verified as follows carbon, hydrogen and chloride relative masses in the TriML and TriEL calibrants were determined by elemental microanalysis the chloride concentration was determined by ion chromatography. Total lead was determined in the calibrants by electrothermal atomic absorption (ETAAS) using two different acid digestion procedures (concentrated nitric... 

Two bonding questions of interest in heavier element chemistry have been particularly well studied in the triels using ECPs, namely, the inert pair effect and the importance of relativity. 3 The inert pair effect describes the increased... 

Systems containing post-transition metals such as the heavier triels (group 13 elements) might be expected to show analogies to those containing d-block elements, but so far little work has been done in this area. 

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