The crystalline aluminophosphate melecular sieve with the largest pore openings (20 MR) to date, DNL-1, has been prepared. Zhijian Tian, Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, China, and co-workers describe the ionothermal synthesis of DNL-1 using a co-structure-directing agent and the confirmation of its structure by Rietveld refinement of PXRD and NMR analysis. The new material has a -CLO framework.

Compared with zeolite analogue of gallophosphate (GaPO₄) cloverite, DNL-1 exhibits excellent stability, which suggests potential applications in separation, catalysis, and gas storage.

• Ionothermal Synthesis of an Aluminophosphate Molecular Sieve with 20-Ring Pore Openings
  Y. Wei, Z. Tian, H. Gies, R. Xu, H. Ma, R. Pei, W. Zhang, Y. Xu, L. Wang, K. Li, B. Wang, G. Wen, L. Lin,
  Angew. Chem. Int. Ed. 2010, 49 (31), 5367-5370.
  DOI: 10.1002/anie.201000320
• Ionothermal Synthesis of an Aluminophosphate Molecular Sieve with 20-Ring Pore Openings
  Ying Wei, Zhijian Tian, Hermann Gies, Renshun Xu, Huaijun Ma, Renyan Pei, Weiping Zhang, Yunpeng Xu, Lei Wang, Keda Li, Bingchun Wang, Guodong Wen, Liwu Lin
  Angew. Chem. 2010, 122 (31), 5495-5498.
  DOI: 10.1002/ange.201000320