
%0 Journal Article
%A Kepert, CJ 
%A Lu, WM 
%A Skelton, BW 
%A White, AH 
%T Structural Systematics of Rare Earth Complexes. V. The Hydrated 1 : 1 Adducts of 2,2&#8242;:6&#8242;,2&#8243;-Terpyridine With the Lanthanoid(III) Chlorides
%J Australian Journal of Chemistry
%D 1994/02/01
%V 47
%N 2
%P 365-384
%K 
%R https://doi.org/10.1071/CH9940365
%U https://www.publish.csiro.au/paper/CH9940365 
%X Detailed examination of the strucures of the title salts, (tpy)LnCl3.xH2O, across the totality of the rare earth series shows a remarkable interplay of structural type and detail. The predominant phase is the previously studied monoclinic Cm array, a &#8776; 7.5, b &#8776; 16.6, c &#8776; 9.8 &#506;, &#946; = 90.2&#176;, V &#8776; 2200 &#506;3, Z = 2 formula units. For the initial members of the series (La &#8594; Nd ), x is 8; for Dy &#8594; Er and Lu, x = 7 is accommodated within the same lattice, as are intermediate degrees of hydration for Sm &#8594; Gd . A second monoclinic phase, P 21/c, a &#8776; 11.6, b &#8776; 13.9, c &#8776; 13.8 &#506;, &#946; &#8776; 92.3&#176;, V &#8776; 2200 &#506;3, Z = 4 formula units, is found for Yb and Lu (x = 7); the same phase but with &#946; acute (a &#8776; 11.3, b &#8776; 14.5, c &#8776; 13.3 &#506;, &#946; &#8776; 82.2&#176;, V &#8776; 2140 &#506;3, Z = 4 formula units) is found for Tm (and Y) (x = 6). A less hydrated binuclear phase, x=1, has also been observed for Sm , a 10.179(3), b 9.928(4), c 9.748(4) &#506;&#945; 112.61(3), &#946; 109.85(3), &#947; 94.72(3)&#176;, V 829.3 &#506;3, Z = 1 dimer. 
