Syntheses and crystal structures of two zeolite related structures with novel framework topologies

Hydrothermal syntheses and crystal structures of two zeolite related materi als with novel framework topologies are reported. UCSB-4 and UCSB-5 were pr epared as cobalt aluminophosphates with N,N,N',N'-tetramethylethylenediamin e and 1,3-diaminopropane as structure-directing agents, respectively. UCSB- 4 has two-dimensional eight-ring channels, whereas UCSB-5 has one-dimension al 10-ring channels. Aluminum and cobalt are not uniformly distributed amon g framework metal atom sites. In UCSB-4, about one third of metal atom site s are cobalt-rich and about two thirds are aluminum-rich, but in UCSB-5, in addition to one third cobalt-rich sites and one third aluminum-rich sites, approximately one third of metal atom sites are almost equally occupied by aluminum and cobalt. The metal atom site selectivity is related to the ori entation of amine molecules which can be determined in both structures. Cry stal data for [(CH3)(2)NH(CH2)(2)NH(CH3)(2)][Co2Al4(PO4)(6)] (UCSB-4): spac e group P2(1)/c, a = 9.2398(8) Angstrom, b = 18.828(2) Angstrom, c = 9.4714 (8) Angstrom, beta = 118.052(1)degrees, V = 1454.1(2) Angstrom(3), Z = 2, M o K alpha, lambda = 0.71073 Angstrom, 2 theta(max) = 45 degrees, R(F) = 10. 1% for 186 parameters and 1896 reflections with I> 2 sigma(I). Crystal data for [NH3(CH2)(3)NH3](4)[Co6Al6(PO4)(12)](OH)(2). H2O: space group P2(1)/c, a = 19.2140(4) Angstrom, b = 9.7711(2) Angstrom, c = 16.3659(3) Angstrom, beta = 110.279(1)degrees, V = 2882.11(8) Angstrom(3), Z = 2, Mo K alpha, 2 theta(max) =50 degrees, R(F) = 5.92% for 461 parameters and 3463 reflection s with I>2 sigma(I). (C) 1998 Elsevier Science B.V. All rights reserved.