
TY  - JOUR
A1  - Harrowfield, JM 
A1  - Kim, Y 
A1  - Skelton, BW 
A1  - White, AH 
T1  - Mixed Transition Metal/Lanthanide Complexes: Structural Characterization of Solids Containing Cage Amine Chromium(III) Cations and Tris(dipicolinato)lanthanide Anions
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1995
VL  - 48
IS  - 4
SP  - 807
EP  - 823
KW  - 
UR  - https://doi.org/10.1071/CH9950807 
N2  - As the foundation to a survey of interactions between chromium(III) and lanthanide(III) ions within the same crystal lattice, a series of complexes of stoichiometry [Cr((NH2)2sar)]- [ Ln ( dipic )3].8H2O (sar = 3,6,10,13,16,19-hexaazabicyclo[6.6.6] icosane, Ln = La-Lu plus Y, dipic = pyridine-2,6-dicarboxylate) has been synthesized and structurally characterized by room-temperature single-crystal X-ray studies. An isomorphous series is found for all Ln, being triclinic, P&#299; , a &#8776; 18.1, b &#8776; 13.3, c &#8776; 11 &#506;, &#945; &#8776; 111.5, &#946; &#8776; 96.2, &#947; &#8776; 109.2&#176;, Z = 2 formula units, full structure determinations being recorded for Ln = La (conventional R 0.048 on |F| for No 6494 independent 'observed' [I > 3&#963;(I)] reflections at convergence), Ce (R 0.036 for No 8980) and Lu (R 0.046 for No 6791). A less well defined protonated series, with a 2:3 Cr/ Ln ratio, has also been characterized specifically for Ln = La [orthorhombic, Pbca , a 26.223(8), b 53.17(3), c 18.329(9) &#506;, Z = 8; R 0.092 for No 5104], the lutetium analogue having a similar cell. 
ER  -

