
%0 Journal Article
%A Semenova, Lioubov I. 
%A White, Allan H. 
%T Structural Systematics of Rare Earth Complexes. XIX (Hydrated) 1 : 2 Mononuclear Adducts of Lanthanoid(<emph type="6">III</emph>) Chlorides with 2,2&#x2032;-Bipyridine and 1,10-Phenanthroline
%J Australian Journal of Chemistry
%D 1999/08/05
%V 52
%N 6
%P 571-600
%K 
%R https://doi.org/10.1071/CH98052
%U https://www.publish.csiro.au/paper/CH98052 
%X Room-temperature single-crystal X-ray structure determinations are recorded for a number of adducts of hydrated lanthanoid(III) trichlorides with 2,2&#8242;-bipyridine (&#8216;bpy&#8217;) and 1,10-phenanthroline (&#8216;phen&#8217;), crystallized from water, methanol or ethanol solutions, containing mononuclear arrays with 1 : 2 Ln/bpy or phen stoichiometry. LaCl3/phen/H2O(1 : 3 : 9), &#91;(phen)2La(OH2)5&#93;Cl3.phen.4H2O, although of overall 1 : 3 LaCl3/phen stoichiometry, has a lattice phen; it is orthorhombic, Pnna, a 19&#183;947(7), b 16&#183;457(5), c 12&#183;213(2) &#197;, Z = 4; conventional R on &#124;F&#124; was 0&#183;030 for No 2567 &#8216;observed&#8217; (I &#62;3&#963;(I)) diffractometer reflections. LaCl3/phen/H2O/MeOH (1 : 2 : 6 : 1), &#91;(phen)2La(OH2)5&#93;Cl3.H2O.MeOH, is triclinic, P 1, a 19&#183;060(3), b 9&#183;252(3), c 8&#183;994(3) &#197;, &#945; 69&#183;33(3), &#946; 86&#183;81(2), &#947; 89&#183;66(2)&#176;, Z = 2, R 0&#183;037 for No 5452. LaCl3/bpy/H2O (1 : 2 : 6), &#91;(bpy)2La(OH2)4Cl&#93;Cl2.2H2O, is monoclinic, P 21/c, a 19&#183;389(3), b 9&#183;071(1), c 16&#183;873(2) &#197;, &#946; 114&#183;10(1)&#176;, Z = 4, R 0&#183;029 for No 4699. All three of these complexes have a nine-coordinate &#91;(N,N&#8242;-bidentate)2La(unidentate)5&#93; coordination environment with quasi-2 symmetry; that of the remaining compounds following is eight-coordinate &#91;(N,N&#8242;-bidentate)2Ln(unidentate)4&#93;. LuCl3/phen/H2O (1 : 2 : 6), &#91;(phen)2Lu(OH2)4&#93;Cl3.2H2O, is monoclinic, C 2/c, a 11&#183;045(7), b 17&#183;660(6), c 14&#183;474(9) &#197;, &#946; 92&#183;82(5)&#176;, Z = 4, R 0&#183;042 for No 1695, the Lu lying on a crystallographic 2 -axis. Crystals of LnCl3/phen/H2O(1 : 2 : 4), &#91;(phen)2Ln(OH2)3Cl&#93;Cl2.H2O (Ln = Dy, Er, Y), are triclinic, P 1, a&#x2248; 12&#183;6, b &#x2248; 10&#183;5, c &#x2248; 10&#183;4 &#197;, &#945; &#x2248; 93&#183;3, &#946; &#x2248; 109&#183;3, &#947; &#x2248; 96&#183;8&#176;, Z = 2, R 0&#183;030, 0&#183;040, 0&#183;052 for No 4221, 5100, 2690 respectively. PrCl3/bpy/H2O/EtOH (1 : 2 : 1 : 0&#183;5), &#91;(bpy)2Pr(OH2)Cl3&#93;.&half;EtOH, is triclinic, P 1, a 13&#183;331(3), b 10&#183;734(2), c 9&#183;758(2) &#197;, &#945; 63&#183;67(2), &#946; 78&#183;99(2), &#947; 71&#183;24(2)&#176;, Z = 2, R 0&#183;033 for No 4596, while &#91;(bpy)2Pr(OH2)2Cl2&#93;Cl is monoclinic, C 2/c, a 15&#183;921(15), b 11&#183;314(8), c 14&#183;114(8) &#197;, &#946; 116&#183;70(6)&#176;, Z = 4, R 0&#183;041 for No 2269. ErCl3/bpy/H2O(1 : 2 : 2 (also)), &#91;(bpy)2Er(OH2)2Cl2&#93;Cl, is cubic, I 23, a 26&#183;032(4) &#197;, Z = 24, R 0&#183;066 for No 1644. Crystals of LnCl3/phen/H2O/MeOH (1 : 2 : 1 : 1), &#91;(phen)2Ln(OH2)Cl3&#93;.MeOH (Ln = La, Pr, Nd, Eu), are monoclinic, P 21/a, a &#x2248; 13&#183;2, b &#x2248; 10&#183;7, c &#x2248; 18&#183;5 &#197;, &#946; &#x2248; 102&#183;1&#176;, Z = 4, R 0&#183;054, 0&#183;032, 0&#183;040, 0&#183;054 for No 2872, 4792, 3179, 2847 respectively. LnCl3/bpy/H2O/EtOH (1 : 2 : 1 : 1), &#91;(bpy)2Ln(OH2)Cl3&#93;.EtOH (Ln = Nd, Eu), are triclinic, P 1, a &#x2248; 11&#183;3, b &#x2248; 10&#183;9, c &#x2248; 10&#183;4 &#197;, &#945; &#x2248; 75&#183;5, &#946; &#x2248; 89&#183;8, &#947; &#x2248; 78&#183;0&#176;, Z = 2, R 0&#183;044, 0&#183;056 for No 4979, 3596 respectively. LaCl3/bpy/EtOH (1 : 2 : 0&#183;5) is binuclear &#91;(bpy)2Cl2La(&#181;-Cl)2LaCl2(bpy)2&#93;.EtOH, monoclinic, P 21/c, a 9&#183;6878(2), b 17&#183;5696(3), c 16&#183;1341(2) &#197;, &#946; 123&#183;10(1)&#176;, Z = 2, R 0&#183;033 for No 4256. A totally unsolvated array is found for YbCl3/bpy (1 : 2), &#91;(bpy)2YbCl3&#93;, monoclinic, P 21/c, a 15&#183;065(8), b 8&#183;598(4), c 16&#183;92(1) &#197;, &#946; 112&#183;46(5)&#176;, Z = 4, R 0&#183;032 for No 3548, in which, alone, the metal atom is seven-coordinate. 
