Yttrium compounds

The solubility properties of yttrium compounds are similar to those of the lanthanides.

They resemble the "yttrium group" of heavy lanthanide elements.

They can be obtained by the direct combination of elementary substances or anhydrous chlorine.

[11] Yttrium and halogens (except fluorine [12] ) or pseudohalogens can also form complexes, such as Cs3[Y2I9], (Bu4N)3 [Y(NCS)6 ], etc.

The ionic radius (0.900) of yttrium in [Y(H2O)6]3+ is similar to that of holmium [Ho(H2O)6]3+ (0.901), and differs from easily hydrolyzed [Sc(H2O)6]3+.

Aromatic polycarboxylates like phthalic acid or trimellitic acid have a rigid shape, and can coordinate more than one yttrium atom to form a metal-organic framework compound.

[7][8] Yttrium and pnictides can form compounds with the chemical formula YE (E = N, P, As, Sb).

[10] They can be made in several ways: There are also several yttrium silicides, such as YSi2,[11] Y5Si4 and YSi;[12] and several stannides.