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The structures are reported of 20 1:1 complexes formed between 2,4,6-tri-α-pyridyl-1,3,5-triazine (tptz) and the nitrates of yttrium and the lanthanoids (La–Lu except Pm). The complexes can be divided up into a series of structural types. The majority of the characterised complexes belong to the isostructural family [Ln(tptz)(NO 3 ) 3 (H 2 O)]·2C 2 H 5 OH (Ln=Y...
The complexes [M(terpy)(NO 3 ) 3 .(H 2 O)] (M=Eu (1), Tb(2); terpy=2,2':6',2''-terpyridyl) are isomorphous and crystallise in the triclinic space group P1 with Z=2, while the related complex [Eu(bipy) 2 (NO 3 ) 3 ] (3) (bipy=2,2'-bipyridyl) crystallises in the orthorhombic space group Pcan (non-standard setting of Pbcn) with Z=4 such that the two halves...
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