Document Detail

Synthesis of two-dimensional analogues of copolymers by site-to-site transmetallation of organometallic monolayer sheets.
MedLine Citation:
PMID:  24673195     Owner:  NLM     Status:  Publisher    
Monolayer sheets have gained attention due to the unique properties derived from their two-dimensional structure. One of the key challenges in sheets modification/synthesis is to exchange integral parts while keeping them intact. We describe site-to-site transmetallation of Zn2+ in the netpoints of cm2-sized, metal-organic sheets by Fe2+, Co2+ and Pb2+. This novel transformation was done both randomly and at predetermined patterns defined by photolithography to create monolayer sheets comprised of different netpoints. All transmetalated sheets are mechanically strong enough to be spanned over 20×20 µm2-sized holes. Density functional theory (DFT) calculations provide both a model for the molecular structure of a Fe2+-based sheet and first insights into how transmetallation proceeds. Such transmetalated sheets with random and patterned netpoints can be considered as two-dimensional analogues of linear copolymers. Their nanoscale synthesis presents an advance in monolayer/polymer chemistry with applications in fields such as surface coating, molecular electronics, device fabrication, imaging and sensing.
Zhikun Zheng; Lothar Opilik; Florian Schiffmann; Wei Liu; Giacomo Bergamini; Paola Ceroni; Lay-Theng Lee; Andri Schütz; Junji Sakamoto; Renato Zenobi; Joost Vandevondele; A Dieter Schlüter
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-27
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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