The interzeolite conversion of metallo-aluminophosphate zeolite, designated as izcMAP, was demonstrated using CoAPO-5 as the parent and a pyrrolidine as an organic structure-directing agent (OSDA). The izcMAP of CoAPO₄-5 with AFI topology successfully yielded a crystal of CoAPO₄-21 with AWO topology, designated as GAM-5P, and the followed calcination under airflow conditions caused a further structural change into CoAPO₄-25 with ATV topology, named GAM-5. UV–vis measurement revealed that the incorporated Co atom in the framework retained tetrahedral coordination during the synthesis; however, the oxidation reaction of the Co atom (Co^II-to-Co^III) occurred during the calcination process. NH₃-TPD analysis of the GAM-5 clearly shows a reasonable solid acidity, resulting in two types of distinct acid sites. Consistent structural elucidations of GAM-5P and GAM-5 zeolites based on the high-resolution powder XRD, solid-state NMR measurements, and Rietveld structural refinements were non-doubtfully taken place. By adopting two-phase Rietveld structural refinement analysis for the GAM-5 zeolite, it found that GAM-5 has two-types of quite similar crystal phases with different space groups (and unit-cell volumes), Aem2 (a = 9.3661(12) Å, b = 15.1105(2) Å, c = 8.3470(4) Å) and Iba2 (a = 15.1233(3) Å, b = 18.7517(3) Å, c = 8.4216(2) Å). This is the first report on presenting the crystallographic models in which (Al + Co) and P atoms are alternatively distributed in ATV topology.

使用 CoAPO-5 作为母体和吡咯烷作为有机结构导向剂 (OSDA) 证明了金属铝磷酸盐沸石的沸石间转化，称为izc MAP。具有AFI拓扑的CoAPO ₄ -5的izc MAP成功地产生了具有AWO拓扑的CoAPO ₄ -21晶体，称为GAM-5P，随后在气流条件下煅烧导致进一步的结构变化为具有ATV的CoAPO ₄ -25拓扑，命名为 GAM-5。紫外-可见测量表明，骨架中掺入的钴原子在合成过程中保持四面体配位；然而，Co原子的氧化反应（Co ^II -to-Co ^III）发生在煅烧过程中。NH ₃-GAM-5 的 TPD 分析清楚地显示出合理的固体酸度，导致两种不同的酸位点。毫无疑问，基于高分辨率粉末 XRD、固态 NMR 测量和 Rietveld 结构改进对 GAM-5P 和 GAM-5 沸石进行了一致的结构解析。通过对GAM-5分子筛进行两相Rietveld结构细化分析，发现GAM-5具有两种非常相似的晶相，具有不同的空间群（和晶胞体积），Aem 2 ( a  = 9.3661( 12) Å, b  = 15.1105(2) Å, c  = 8.3470(4) Å) 和Iba 2 ( a  = 15.1233(3) Å, b  = 18.7517(3) Å, c = 8.4216(2) Å)。这是第一份介绍晶体模型的报告，其中 (Al + Co) 和 P 原子交替分布在ATV拓扑中。