Stepwise transformation of the molecular building blocks in a porphyrin-encapsulating metal-organic material

Zhenjie Zhang, Łukasz Wojtas, Mohamed Eddaoudi, Michael J. Zaworotko

Research output: Contribution to journalArticlepeer-review

91 Scopus citations


When immersed in solutions containing Cu(II) cations, the microporous metal-organic material P11 ([Cd4(BPT)4]·[Cd(C 44H36N8)(S)]·[S], BPT = biphenyl-3,4′,5-tricarboxylate) undergoes a transformation of its [Cd 2(COO)6]2- molecular building blocks (MBBs) into novel tetranuclear [Cu4X2(COO)6(S) 2] MBBs to form P11-Cu. The transformation occurs in single-crystal to single-crystal fashion, and its stepwise mechanism was studied by varying the Cd2+/Cu2+ ratio of the solution in which crystals of P11 were immersed. P11-16/1 (Cd in framework retained, Cd in encapsulated porphyrins exchanged) and other intermediate phases were thereby isolated and structurally characterized. P11-16/1 and P11-Cu retain the microporosity of P11, and the relatively larger MBBs in P11-Cu permit a 20% unit cell expansion and afford a higher surface area and a larger pore size. © 2013 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)5982-5985
Number of pages4
JournalJournal of the American Chemical Society
Issue number16
StatePublished - Apr 10 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by Award FIC/2010/06 from King Abdullah University of Science and Technology. The data for P11-Cu were collected at the Advanced Photon Source on beamline 15ID-C of ChemMatCARS Sector 15, which is principally supported by the National Science Foundation/Department of Energy under Grant NSF/CHE-0822838. The Advanced Photon Source is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357.

ASJC Scopus subject areas

  • Biochemistry
  • Colloid and Surface Chemistry
  • General Chemistry
  • Catalysis


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