Thallium continued structure

Tl,Bi)-1223 or (Tl,Pb)-1223 are selected for detailed description as representatives of the thallium bilayer and monolayer compound, respectively. Tl-2201 is selected because of its structural simplicity and continuously variable T, up to 84 K. It is the ideal candidate for fundamental studies. (Tl,Bi)-1223 and (Tl,Pb)-1223 offer a high irreversibility of field, which is very important for applications in high magnetic field. 

Strong interest continues to be shown in the synthesis and structural studies of organophosphino derivatives of the p-block elements, notably boron, " aluminium, gallium, indium, and thallium, and metallophosphide reagents have been used extensively in this work. Organophosphido derivatives of zinc, thorium, and zirconium have also been described. 

---