SYNTHESIS AND STRUCTURE OF A NEW COBALT-CONTAINING ALUMINOPHOSPHATE

We report on the synthesis and single-crystal structure of a novel cob alt-substituted alumino-phosphate. Crystal data: monoclinic, space gro up P2(1)/c (no. 14), a = 8.593(1), b = 15.540(1), c = 7.736(1) Angstro m, beta = 110.65(1)degrees, V = 966.7(4) Angstrom(3), Z = 4, R = 0.037 , and R(W) = 0.029 for 2280 contributing reflections and 182 variables . Refined framework-atom bond distances and angles exhibited regular t etrahedral coordination of Al and P[d(ave)(Al-O) = 1.74(1) Angstrom, d (ave)(P-O) = 1.54(2) Angstrom] and distorted Co-centered octahedra. Th e Co substituted every second aluminum in the ordered Al-P distributio n and was coordinated to five framework oxygen atoms and to one nitrog en atom from a template ethylenediamine molecule located in an eight-m ember ring opening. Structure collapsed in the absence of template.