Molecular weaving via surface-templated epitaxy of crystalline coordination networks
Zhengbang Wang , Alfred Błaszczyk , Olaf Fuhr , Stefan Heissler , Christof Wöll , Marcel Mayor
AbstractOne of the dream reactions in polymer chemistry is the bottom-up, self-assembled synthesis of polymer fabrics, with interwoven, one-dimensional fibres of monomolecular thickness forming planar pieces of textiles. We have made a major step towards realizing this goal by assembling sophisticated, quadritopic linkers into surface-mounted metal-organic frameworks. By sandwiching these quadritopic linkers between sacrificial metal-organic framework thin films, we obtained multi-heteroepitaxial, crystalline systems. In a next step, Glaser–Hay coupling of triple bonds in the quadritopic linkers yields linear, interwoven polymer chains. X-ray diffraction studies revealed that this topochemical reaction leaves the MOF backbone completely intact. After removing the metal ions, the textile sheets can be transferred onto different supports and imaged using scanning electron microscopy and atomic-force microscopy. The individual polymer strands forming the two-dimensional textiles have lengths on the order of 200 nm, as evidenced by atomic-force microscopy images recorded from the disassembled textiles.
|Journal series||Nature Communications, ISSN 2041-1723, (A 45 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||molecular textiles, metal-organic frameworks|
|ASJC Classification||; ;|
|Score||= 45.0, 18-03-2020, ArticleFromJournal|
|Publication indicators||= 23; : 2017 = 2.912; : 2017 = 12.353 (2) - 2017=13.691 (5)|
|Citation count*||31 (2020-07-11)|
|Uwagi||Article number: 14442|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.